Knee Osteoarthritis Progression after Distal Femur Closing Wedge Osteotomy

Background: Despite the conservative treatment of tibio-femoral osteoarthritis through realignment osteotomies, the rate of total knee replacements following an osteotomy is increasing. The aim of this study was to identify the factors associated with the progression of knee osteoarthritis after a medial closing-wedge distal femoral osteotomy. Methods: Hospital-based observational study on 20 patients who underwent a medial closing-wedge distal femoral osteotomy evaluating the progression of osteoarthritis using the Kellgren and Laurence classification. The Wilcoxon test was used to compare the variation in the progressive stage of the Kellgren and Laurence classification of knee osteoarthritis preoperatively and at the final follow up. Univariate analysis made it possible to determine the factors associated with progression. The final significance threshold for statistical tests was set at 5% (p Results: Overall, the mean follow-up of 46 months ± 6.6 months, with a mean age of 43 years (range: 27 - 69 years) and a female predominance (M: F = 3/7). The progression of tibiofemoral osteoarthritis following a medial closing-wedge distal femoral osteotomy is associated with valgus or varum malalignment been a moderate valgus (OR 6.2 [1.5 - 42.7] at 95% CI;p-value = 0.02), a correction of the mechanical deviation angle with a valgus alignment (OR 2.7 [0.9 - 8.3] at 95% CI), and loss of correction (OR 3.8 [1.3 - 11.6] at 95% CI;p -value) for the lateral compartment while varus alignment (OR 1.7 [0.9 - 8.3] 95% CI, p-value = 0.05) and with rupture of the lateral cortex (OR 2.8 [1.7 - 11.5] 95% CI, p-value = 0.02) were those of the medial compartment. Conclusion: Distal femur closing wedge osteotomy does not definitively interrupt the progression of valgus knee osteoarthritis. The factors associated with the progression of this pathology are modifiable. Taking them into account when performing this surgical technique could improve the osteotomy survival curve.

Osteotomy Protocol for Implant Insertion of One Day Biotech: One Drill, One Implant

Background: Four factors determine the quality of an implantology kit: 1) Heat generated by the drills;2) Morphology of the osteotomy according to the diameter of the implant;3) Efficiency of collecting autologous bone;and 4) Osteotomy execution time. Materials and Methods: This article examines the heat produced by drills during osteotomy, focusing on the effect of the following factors: drilling technique;volume of autologous bone harvested;drilling time;implant primary stability;and the percentage of osseointegrated implants after primary healing. Discussion: The four factors mentioned above are analyzed based on the data obtained for sequential, biological, and One Drill milling techniques. Conclusions: 1) One Drill is the fastest technique for performing the osteotomy;2) All techniques stay within the biological temperature range of living bone, with the lowest increase in temperature achieved using One Drill with irrigation;3) The bone harvested showed no statistically significant differences between biological milling and the One Drill technique, both far superior to the sequential technique;and 4) There is no statistically significant difference in the number of osseointegrated implants among the three techniques analyzed.

Clinical outcomes of triceps reflecting anconeus pedicle and olecranon osteotomy approach for distal humerus intercondylar fractures

BACKGROUND The preferred treatment for distal humeral intercondylar fractures is open reduction and internal fixation.While there is consensus about the posterior approach,several posterior approaches have been developed.It is debatable as to which approach is best.AIM To compare triceps reflecting anconeus pedicle(TRAP)and olecranon osteotomy approaches for internal fixation of distal humeral intercondylar fracture.METHODS In total,40 cases of Arbeitsgemeinschaft für Osteosynthesefragen/Association of the Study of Internal Fixation type C,closed,and Gustilo type I intercondylar humeral fractures were included.Patients ranged in age from 18 years to 70 years.The patients were randomized into two groups:TRAP group and olecranon osteotomy group,with 20 cases in each.All were followed up at 6 wk,3 months,6 months,and 12 months.Functional outcomes were measured in terms of flexion-extension arc,Disabilities of Arm,Shoulder and Hand score,and Mayo Elbow Performance Score.RESULTS The mean age was 43.2 years in the TRAP group and 37.5 years in the olecranon osteotomy group.The mean operative time and mean duration of hospital stay in the TRAP group were significantly higher than in the olecranon osteotomy group(119.5 vs 111.5 min and 9.85 vs 5.45 d,respectively).The mean arc of flexion-extension,Disabilities of Arm,Shoulder and Hand score,and Mayo Elbow Performance Score were comparable without any significant difference in the groups at the 12-month follow-up(107.0 vs 106.2,18.3 vs 15.7,and 84.2 vs 86.2,respectively).Ulnar paresthesia and superficial infections were comparable in both groups(2 cases vs 3 cases and 3 cases vs 2 cases,respectively).Hardware prominence was significantly higher in the olecranon osteotomy group,mostly due to tension band wiring.CONCLUSION Both approaches were equivalent,but there is a need for further study including higher numbers of subjects and longer study duration to prove the benefits of one approach over the other.

Three cancers in the renal pelvis,bladder,and colon:A case report

BACKGROUND Multiple primary cancers are rare occurrences that can involve either metachronous or synchronous development.It is particularly rare for an individual to have more than two primary cancers.In this report,we present a case study of an elderly man who was diagnosed with three heterochronous cancers in the renal pelvis,bladder,and colon.CASE SUMMARY On December 30,2014,a 51-year-old Chinese man was admitted to our hospital with complaints of intermittent painless gross hematuria for the preceding week.A computed tomography(CT)scan revealed wall thickening in the left ureter’s upper segment,while a CT urography revealed a left renal pelvis tumor.A successful laparoscopic radical resection of the left renal pelvis tumor was subsequently performed at Shanghai Zhongshan Hospital in January 2015.The pathological findings after the surgery revealed a low-grade papillary urothelial carcinoma of the renal pelvis.The final pathological tumor stage was pT1N0M0.After surgery,this patient received 6 cycles of intravenous chemotherapy with gemcitabine and carboplatin,as well as bladder infusion therapy with gemcitabine.On December 18,2017,the patient was admitted once again to our hospital with a one-day history of painless gross hematuria.A CT scan showed the presence of a space-occupying lesion on the posterior wall of bladder.Cystoscopic examination revealed multiple tumors in the bladder and right cutaneous ureterostomy was performed under general anesthesia on December 29,2017.The postoperative pathological findings disclosed multifocal papillary urothelial carcinoma of the bladder(maximum size 3.7 cm×2.6 cm).The bladder cancer was considered a metastasis of the renal pelvis cancer after surgery.The pathological tumor stage was pT1N0M1.The patient refused chemotherapy after surgery.After another six years,the patient returned on February 28,2023,complaining of periumbilical pain that had lasted six days.This time,a CT scan of the abdomen showed a tumor in the ascending colon,but a subsequent colonoscopy examination indicated a tumor in the descending colon.On March 12,2023,a subtotal colectomy and an ileosigmoidal anastomosis were carried out under general anesthesia.Postoperative pathological findings revealed that all three tumors were adenocarcinomas.The final pathological tumor stage was pT3N0M0.The patient had an uneventful postoperative recovery and was discharged without complications.CONCLUSION The case of this elderly man presents a rare occurrence of metachronous primary cancers in the renal pelvis and colon.Bladder cancer is considered a metastasis of renal pelvis cancer after surgery.Optimal treatment can be implemented by evaluating the patient’s histological features,clinical history,and tumor distribution correctly.

Unicompartmental knee arthroplasty vs high tibial osteotomy for knee osteoarthritis:A comparison of clinical and radiological outcomes

BACKGROUND Unicompartmental knee arthroplasty(UKA)and high tibial osteotomy(HTO)are well-established operative interventions in the treatment of knee osteoarthritis.However,which intervention is more beneficial to patients with knee osteoarthritis remains unknown and a topic of much debate.Simultaneously,there is a paucity of research assessing the relationship between radiographic parameters of knee joint alignment and patient-reported clinical outcomes,preoperatively and following HTO or UKA.AIM To compare UKAs and HTOs as interventions for medial-compartment knee osteoarthritis:Examining differences in clinical outcome and investigating the relationship of joint alignment with respect to this.METHODS This longitudinal observational study assessed a total of 42 patients that had undergone UKA(n=23)and HTO(n=19)to treat medial compartment knee osteoarthritis.Patient-reported outcome measures(PROMs)were collected to evaluate clinical outcome.These included two disease-specific(Knee Injury and Osteoarthritis Outcome Score,Oxford Knee Score)and two generic(EQ-5D-5L,Short Form-12)PROMs.The radiographic parameters of knee alignment assessed were the:Hip-knee-ankle angle,mechanical axis deviation and angle of Mikulicz line.RESULTS Statistical analyses demonstrated significant(P<0.001),preoperative to postoperative,improvements in the PROM scores of both groups.There were,however,no significant inter-group differences in the postoperative PROM scores of the UKA and HTO group.Several significant correlations associated a more distolaterally angled Mikulicz line with worse knee function and overall health preoperatively(P<0.05).Postoperatively,two clusters of significant correlations were observed between the disease-specific PROM scores and knee joint alignment parameters(hip-knee-ankle angle,mechanical axis deviation)within the HTO group;yet no such associations were observed within the UKA group.CONCLUSION UKAs and HTOs are both efficacious operations that provide a comparable degree of clinical benefit to patients with medial compartment knee osteoarthritis.Clinical outcome has a limited association with radiographic parameters of knee joint alignment postoperatively;however,a more distolaterally angled Mikulicz line appears associated with worse knee function/health-related quality of life preoperatively.

Osteotomy combined with anterior cruciate ligament reconstruction for anterior cruciate ligament injury and biplanar deformity

BACKGROUND It has been confirmed that the increased posterior tibial slope over 12 degrees is a risk factor for anterior cruciate ligament injury,and varus deformity can aggravate the progression of medial osteoarthritis.AIM To evaluate the efficacy of modified high tibial osteotomy(HTO)and anterior cruciate ligament reconstruction(ACLR)in the treatment of anterior cruciate ligament(ACL)injuries with varus deformities and increased posterior tibial slope(PTS)based on clinical and imaging data.METHODS The patient data in this retrospective study were collected from 2019 to 2021.A total of 6 patients were diagnosed with ACL injury combined with varus deformities and increased PTS.All patients underwent modified open wedge HTO and ACLR.The degree of correction of varus deformity and the PTS was evaluated by radiography and magnetic resonance imaging.RESULTS All 6 patients(6 knee joints)were followed up for an average of 20.8±3.7 months.The average age at surgery was 29.5±3.8 years.At the last follow-up,all patients resumed competitive sports.The International Knee Documentation Committee score increased from 50.3±3.1 to 87.0±2.8,the Lysholm score increased from 43.8±4.9 to 86±3.1,and the Tegner activity level increased from 2.2±0.7 to 7.0±0.6.The average movement distance of the tibia anterior translation was 4.8±1.1 mm,medial proximal tibial angle(MPTA)was 88.9±1.3°at the last follow-up,and the PTS was 8.4±1.4°,both of which were significantly higher than those before surgery(P<0.05).CONCLUSION Modified open wedge HTO combined with ACLR can effectively treat patients with ACL ruptures with an associated increased PTS and varus deformity.The short-term effect is significant,but the long-term effect requires further follow-up.

Is metaphyseal ulnar shortening osteotomy superior to diaphyseal ulnar shortening osteotomy in the treatment of ulnar impaction syndrome?A meta-analysis

BACKGROUND Although metaphyseal ulnar shortening osteotomy(MUSO)is safer for the treatment of ulnar impaction syndrome(UIS)than diaphyseal ulnar shortening osteotomy(DUSO),DUSO is widely used for UIS treatment.AIM To evaluate the effectiveness of DUSO and MUSO for UIS treatment and determine the factors that should be considered when choosing surgical treatment for UIS.METHODS Articles comparing the effectiveness of DUSO and MUSO for UIS treatment were systematically retrieved from MEDLINE(Ovid),PubMed,EMBASE,and Cochrane Library.The demography,incidence of complications,secondary operation rate,postoperative DASH score,wrist pain on the visual analogue scale,and grip strength improvement were also evaluated.In addition,the correlation between the improvement of grip strength and the shortening of osteotomy length of ulna was analyzed.The outcome of the patient was discontinuous,and the odds ratio,risk ratio(RR),and 95%CI were calculated and analyzed via RevMan5.3 software.RESULTS Six studies,including 83 patients receiving MUSO(experimental group)and 112 patients receiving DUSO(control group),were included in the meta-analysis.The second operation rate was significantly higher after DUSO than after MUSO.The DASH scores were slightly lower in the MUSO group than in the DUSO group.The patients receiving MUSO had slightly better pain relief effect than patients receiving DUSO.However,the incidence of complications and improvement of grip strength were not significantly different between the two groups.CONCLUSION Although DUSO and MUSO provide similar effects for UIS,MUSO is associated with a lower secondary operation rate,slightly lower postoperative DASH scores and slightly better pain relief effect than DUSO,indicating that MUSO can effectively be used for UIS treatment.

Early diagnosis of renal pelvis villous adenoma:A case report

BACKGROUND Villous adenoma is a rare tumor in the urinary system that usually occurs in the bladder.It is extremely uncommon in the renal pelvis.Most of the previously reported cases have been diagnosed with severe hydronephrosis associated with renal parenchyma atrophy prior to surgery.Because of its rarity,available information on the pathogenesis,diagnosis,treatment and prognosis of the disease is limited.We reported a case of kidney stones with hydronephrosis.During percutaneous nephroscopic lithotripsy,a renal pelvis tumor was found.Biopsy confirmed that the tumor was a villous adenoma of the renal pelvis.CASE SUMMARY A 68-year-old female was admitted to the hospital due to right kidney stones with right hydronephrosis.After admission,a urinary system plain computed tomography scan was performed,which revealed right kidney stones with right hydronephrosis and right upper ureteral dilatation.Multiple new cauliflower-like papillary masses were then discovered in the renal pelvis and calyces during right percutaneous nephroscopic lithotripsy.Biopsy results indicated villous adenoma with high-grade glandular intraepithelial neoplasia.The patient underwent laparoscopic radical resection of the right kidney and ureter.Based on histopathological and immunohistochemical examination,the patient was diagnosed with villous adenoma without adenocarcinoma.CONCLUSION Villous adenoma is rare in the urinary system.We reported a case of renal pelvis villous adenoma,which may provide useful information for the early diagnosis and treatment of this tumor.

Renal pelvis sarcomatoid carcinoma with renal vein tumor thrombus:A case report and literature review

BACKGROUND Renal pelvis sarcomatoid carcinoma(RPSC)is a rare and aggressive malignancy whose diagnosis is difficult because radiological imaging results can lead to misclassification as a more common type of renal tumor.In addition,clinical management of patients with RPSC is difficult because of the limited efficacy of available treatments.In this study,we present a comprehensive description of a patient who presented with RPSC and a simultaneous renal vein tumor thrombus.CASE SUMMARY During April,2020,a 64-year-old female presented with an isolated episode of hematuria accompanied by abdominal pain.Computed tomography(CT)and magnetic resonance imaging(MRI)showed a lesion in the right renal pelvis.We therefore performed a radical nephrectomy of the right kidney.The subsequent histopathological and immunological results verified the diagnosis of RPSC.Despite administration of 6 cycles of a gemcitabine-cisplatin regimen,the patient's condition progressively deteriorated,and she died about 15 mo after the nephrectomy.CONCLUSION We performed a comprehensive analysis of a patient with RPSC that included CT,MRI,immunohistochemistry,and genetic testing.The insights from our detailed analysis of this patient and our concomitant review of the literature may assist clinicians in their diagnosis and treatment of RPSC.

Mid-term results of sub-trochanteric valgus osteotomy for symptomatic late stages Legg-Calvé-Perthes disease

BACKGROUND The treatment of late stages of Legg-Calvé-Perthes disease(LCPD)is controversial.Although the concept of femoral head containment is a well-established technique of treatment,its use remains debatable in the late stages of the disease,as it does not improve symptoms in terms of limb length discrepancy and gait.AIM To assess the results of subtrochanteric valgus osteotomy in symptomatic patients with late-stage Perthes disease.METHODS From 2000 to 2007,36 symptomatic patients with late stage of Perthes disease were surgically treated with subtrochanteric valgus osteotomy and followed-up for 8 to 11 years using the IOWA score and range of motion(ROM)variables.The Mose classification was also assessed at the last follow-up to reflect possible remodeling.The patients were 8 years old or older at the time of surgery,in the post-fragmentation stage,and complaining of pain,limited ROM,Trendelenburg gait,and/or abductor weakness.RESULTS The preoperative IOWA score(average:53.3)markedly improved at the 1-year post follow-up period(average:85.41)and then slightly improved at the last follow-up(average:89.4)(P value<0.05).ROM improved,with internal rotation increased on average by 22°(from 10°preoperatively to 32°postoperatively)and abduction increased on average by 15.9°(from 25°preoperatively to 41°postoperatively).The mean Mose deviation of femoral heads was 4.1 mm at the end of the follow-up period.The tests used were the paired t-test and Pearson correlation test,where the level of significance was a P value less than 0.05.CONCLUSION Subtrochanteric valgus osteotomy can be a good option for symptomatic relief in patients with late-stage of LCPD.

Successful hip revision surgery following refracture of a modern femoral stem using a cortical window osteotomy technique:A case report and review of literature

BACKGROUND The ExeterTM Universal cemented femoral component is widely used for total hip replacement surgery.Although there have been few reports of femoral component fracture,removal of a broken femoral stem can be a challenging procedure.CASE SUMMARY A 54-year-old man with a Dorr A femur sustained a refracture of a primary ExeterTM stem,two years after receiving a revision using a cement-within-cement technique(CWC)through an extended trochanteric osteotomy(ETO).The technical problems related to the CWC technique and the ETO played a major role in the stem fatigue refracture.We performed revision surgery and removed the distal cement using a cortical femoral window technique,followed by reimplantation with an uncemented,modular,distally-fixed uncemented stem.The patient experienced an uneventful postoperative recovery.CONCLUSION Re-fracture of a modern femoral ExeterTM stem is a rare event,but technical complications related to revision surgery can lead to this outcome.The cortical window osteotomy technique can facilitate the removal of a broken stem and cement,allowing for prosthetic reimplantation under direct vision and avoiding ETO-related complications.

Reduced Imaging Time and Improved Image Quality of 3D Isotropic T2-Weighted Magnetic Resonance Imaging with Compressed Sensing for the Female Pelvis

This study is to compare three-dimensional(3D)isotropic T2-weighted magnetic resonance imaging(MRI)with compressed sensing-sampling perfection with application optimized contrast(CS-SPACE)and the conventional image(3D-SPACE)sequence in terms of image quality,estimated signal-to-noise ratio(SNR),relative contrast-to-noise ratio(CNR),and the lesions’conspicuous of the female pelvis.Thirty-six females(age:51,28-73)with cervical carcinoma(n=20),rectal carcinoma(n=7),or uterine fibroid(n=9)were included.Patients underwent magnetic resonance(MR)imaging at a 3T scanner with the sequences of 3D-SPACE,CS-SPACE,and twodimensional(2D)T2-weighted turbo-spin echo(TSE).Quantitative analyses of estimated SNR and relative CNR between tumors and other tissues,image quality,and tissue conspicuity were performed.Two radiologists assessed the difference in diagnostic findings for carcinoma.Quantitative values and qualitative scores were analyzed,respectively.The estimated SNR and the relative CNR of tumor-to-muscle obturator internus,tumor-to-myometrium,and myometrium-to-muscle obturator internus was comparable between 3D-SPACE and CS-SPACE.The overall image quality and the conspicuity of the lesion scores of the CS-SPACE were higher than that of the 3D-SPACE(P<0.01).The CS-SPACE sequence offers shorter scan time,fewer artifacts,and comparable SNR and CNR to conventional 3D-SPACE,and has the potential to improve the performance of T2-weighted images.

A Case Report: High-Grade Urothelial Carcinoma in the Renal Pelvis with Complete Kidney and Ureter Duplication Featuring Heterologous Differentiation

This report describes a considerably rare case of high-grade urothelial carcinoma of the renal pelvis and ureter,presenting with heterologous differentiation,in a patient with bilateral duplicated kidneys.A 73-year-old male experienced intermittent gross hematuria for 5 months,accompanied by lower back and abdominal pain.Ultrasound and computed tomography scans revealed bilateral renal and ureteral duplication with multiple tumors in the left renal pelvis.A total nephroterectomy and bladder cuff resection were performed on the left two nephrons.Multiple space-occupying lesions were identified in the left renal pelvis and ureter.Histopathological examination showed poorly differentiated and diverse tumor cells,manifesting as sarcomatoid carcinoma,papillary adenocarcinoma,and infiltrating high-grade urothelial carcinoma.The tumor infiltrated the subcutaneous fibrous connective tissue of the renal pelvis and the full thickness of the ureter.Given the rarity of recurrent renal urothelial carcinoma with heterogeneous differentiation,comprehensive imaging and pathological assessments are vital to delineate the nature of the lesion and the direction of tissue pathological heterologous differentiation.These evaluations guide early radical surgical interventions,improving survival rates.

Bernese periacetabular osteotomy for hip dysplasia: Surgical technique and indications

For young, active patients with healthy hip cartilage, pelvic osteotomy is a surgical option in to address hip pain and to improve mechanical loading conditions related to dysplasia. Hip dysplasia may lead to arthrosis at an early age due to poor coverage of the femoralhead and abnormal loading of the joint articulation. In patients with symptomatic dysplasia and closed triradiate cartilage(generally over age 10), including adolescents and young adults(generally up to around age 40), the Bernese periacetabular osteotomy(PAO) is a durable technique for addressing underlying structural deformity. The PAO involves a modified Smith-Petersen approach. Advantages of the Bernese osteotomy include preservation of the weight-bearing posterior column of the hemi-pelvis, preservation of the acetabular blood supply, maintenance of the hip abductor musculature, and the ability to effect powerful deformity correction about an ideal center of rotation. There is an increasing body of evidence that preservation of the native hip can be improved through pelvic osteotomy. In contrast to hip osteotomy and joint preservation, the role of total hip arthroplasty in young, active patients with correctable hip deformity remains controversial. Moreover, the durability of hip replacement in young patients is inherently limited. Pelvic osteotomy should be considered the preferred method to address correctable structural deformity of the hip in the young, active patient with developmental dysplasia. The Bernese PAO is technically demanding, yet offers reproducible results with good long-term survivorship in carefully selected patients with preserved cartilage and the ability to meet the demands of rehabilitation.

Proximal fibular osteotomy:Systematic review on its outcomes

BACKGROUND The morbidity and burden of knee osteoarthritis affecting millions of lives worldwide has created a constant pursuit in finding the ideal treatment for knee osteoarthritis.There has been a paradigm shift in the surgical treatment of osteoarthritis ever since the initial description of Volkmann’s tibial osteotomy.This review focuses on one such recent procedure,the proximal fibular osteotomy(PFO)for medial compartment knee osteoarthritis.This review encompasses the history,evidence,risk factors,outcomes and technical considerations of PFO.AIM To understand the evidence and its techniques,and whether this could be an alternative solution to the problem of knee osteoarthritis in the developing world.METHODS The phrases“proximal fibular osteotomy”and“knee osteoarthritis”were searched(date of search December 20,2019)on PubMed to identify articles evaluating the biomechanical and clinical outcomes of PFO in patients with knee osteoarthritis.A total of 258 were retrieved.After reviewing the summary of the texts,22 articles written in English were marked for abstract review.Articles that were case studies or cadaver experiments were excluded.The abstracts of the remaining articles were read,and only those that focused on the history,outcomes of case studies and technical considerations of PFO were included in the review.A total of 12 articles were included in this review.RESULTS At least six studies reported improvement in the visual analogue scale(VAS)from the average preoperative VAS score[6.32,95%confidence interval(CI)=(4.05,8.59)]to average postoperative VAS score[1.23,95%CI:(-1.20,3.71)],which was statistically significant.Similarly,the American Knee Society Score(KSS)functional score improved from an average preoperative KSS functional score[43.11,95%CI:(37.83,48.38)]to postoperative KSS functional score[66.145,95%CI:(61.94,70.35)],which was statistically significant.The femorotibial angle improved by around 7º,and the hip knee ankle angle improved by around 6º.CONCLUSION With the existing data,it seems that PFO is a viable option for treating medial joint osteoarthritis in selected patients.Long term outcome studies and progression of disease pathology are some of the important parameters that need to be addressed by use of multicenter randomized controlled trials.

A comparative study on imaging parameters of Chevron combined with Akin osteotomy and Scarf combined with Akin osteotomy for the correction of hallux valgus in patients at different ages

Objective:To study the imaging parameters of Chevron combined with Akin and Scarf combined with Akin for the correction of hallux valgus in patients of different ages.Methods:Eighty patients(152 feet)with hallux valgus who underwent Chevron combined with Akin and Scarf combined with Akin in our hospital were randomly selected.The patients were divided into young and middle-aged groups.Measure the hallux valgus angles(HVA),distal metatarsal articular angle(DMAA)and intermetatarsal angles(IMA)with professional X-ray measurement software and then reseach the effect of two the operation methods.Results:Young group:Chevron combined with Akin and Scarf combined with Akin significantly improved HVA and IMA,the difference had statistical significance(P<0.05),but the improvement effect of the two groups was similar,and the difference had no statistical significance(P>0.05).The improvement effect of the two groups on DMAA in young patients was not significant,and the difference had no statistical significance(P>0.05);Middle-aged group:Chevron combined with Akin and Scarf combined with Akin also significantly improved HVA and IMA(P<0.05),but the improvement effect of the two groups was similar,and the difference had no statistical significance(P>0.05).Chevron combined with Akin significantly improved DMAA in middle-aged and elderly patients,and the difference had statistical significance(P<0.05).Scarf combined with Akin did not significantly improve DMAA in middle-aged and elderly patients,and the difference had no statistical significance(P<0.05).Conclusion:Both Chevron combined with Akin and Scarf combined with Akin are effective and widely used.Chevron combined with Akin was able to improve DMAA in middle-aged and elderly patients.Therefore,Chevron combined with Akin is recommended for middle-aged and elderly patients with hallux valgus.

Triple pelvic osteotomy: Report of our mid-term results and review of literature

A wide variety of pelvic osteotomies have been developed for the treatment of developmental dysplasia of the hip(DDH). In the present paper, we present a detailed review of previous studies of triple osteotomy as an alternative treatment for DDH. We also report our experience treating 6 adult cases of DDH by triple osteotomy in order to highlight the various aspects of this procedure.The mean age of our patients was 31.2 years with a mean follow-up period of 6 years. We assessed range of motion, center-edge angle, acetabular index angle, Sharp angle, acetabulum head index, head lateralization index, Japanese Orthopedic Association score, Harris hip score, patient satisfaction, and the difference between lower limb lengths before and after the procedure. At final follow-up, clinical scores were significantly improved and radiographic parameters also showed good correction of acetabulum.

Correction of mandibular deficiency by inverted-L osteotomy of ramus and iliac crest bone grafting

This study was to describe the use of inverted-L osteotomy of ramus and lilac bone graft for the management of mandibular deficiency in adult patients. From 2008 to 2010, 11 patients （aged 19 to 29 years） with mandibular deficiency underwent intraoral or extraoral inverted-L osteotomy of ramus and lilac crest bone grafting. Data were collected from the patients＇ records, photographs and radiographs. The height and width of the ramus were successfully expanded by inverted-L osteotomy and lilac crest bone grafting with minimal complications in all patients, resulting in significant improvement in occlusion and facial appearance. Our early results showed that the inverted-L osteotomy of ramus and lilac crest bone grafting is safe and effective, and should be considered as a good alternative for the patients with mandibular deficiency.

Soft tissue release combined with joint-sparing osteotomy for treatment of cavovarus foot deformity in older children: Analysis of 21 cases

BACKGROUND Cavovarus foot is a common form of foot deformity in children,which is clinically characterized by an abnormal increase of the longitudinal arch of the foot,and it can be simultaneously complicated with forefoot pronation and varus,rearfoot varus,Achilles tendon contracture,or cock-up toe deformity.Muscle force imbalance is the primary cause of such deformity.Many diseases can lead to muscle force imbalance,such as tethered cord syndrome,cerebral palsy,Charcot-Marie-Tooth disease,and trauma.At present,many surgical treatments are available for cavovarus foot.For older children,priority should be given to midfoot osteotomy and fusion.Since complications such as abnormal foot length,foot stiffness,and abnormal gait tend to develop postoperatively,it is important to preserve the joints and correct the deformity as much as possible.Adequate soft tissue release and muscle balance are the keys to correcting the deformity and avoiding its postoperative recurrence.AIM To assess the efficacy of soft tissue release combined with joint-sparing osteotomy in the treatment of cavovarus foot deformity in older children.METHODS The clinical data of 21 older children with cavovarus foot deformity(28 feet)who were treated surgically at the Ninth Department of Orthopedics of Jizhong Energy Xingtai Mining Group General Hospital from November 2014 to July 2017 were retrospectively analyzed.The patients ranged in age from 10 to 14 years old,with an average age of 12.46±1.20 years.Their main clinical manifestations were deformity,pain,and gait abnormality.The patients underwent magnetic resonance imaging of the lumbar spine,electromyographic examination,weightbearing anteroposterior and lateral X-rays of the feet,and the Coleman block test.Surgical procedures including metatarsal fascia release,Achilles tendon or medial gastrocnemius lengthening,"V"-shaped osteotomy on the dorsal side of the metatarsal base,opening medial cuneiform wedge osteotomy,closing cuboid osteotomy,anterior transfer of the posterior tibial tendon,peroneus longus-tobrevis transfer,and calcaneal sliding osteotomy to correct hindfoot varus deformity were performed.After surgery,long leg plaster casts were applied,the plaster casts were removed 6 wk later,Kirschner wires were removed,and functional exercise was initiated.The patients began weight-bearing walk 3 mo after surgery.Therapeutic effects were evaluated using the Wicart grading system,and Meary’s angles and Hibbs’angles were measured based on X-ray images obtained preoperatively and at last follow-up to assess their changes.RESULTS The patients were followed for 6 to 32 mo,with an average follow-up period of 17.68±6.290 mo.Bone healing at the osteotomy site was achieved at 3 mo in all cases.According to the Wicart grading system,very good results were achieved in 18 feet,good in 7,and fair in 3,with a very good/good rate of 89.3%.At last follow-up,mean Meary’s angle was 6.36°±1.810°,and mean Hibbs’angle was 160.21°±4.167°,both of which were significantly improved compared with preoperative values(24.11°±2.948°and 135.86°±5.345°,respectively;P<0.001 for both).No complications such as infection,skin necrosis,or bone nonunion occurred.CONCLUSION Soft tissue release combined with joint-sparing osteotomy has appreciated efficacy in the treatment of cavovarus foot deformity in older children.

Valgus osteotomy for nonunion and neglected neck of femur fractures

Nonunion neck of femur can be a difficult problem to treat, particularly in the young, and is associated with high complication rates of avascular necrosis due to the precarious blood supply and poor biomechanics.The various treatment options that have been described can be broadly divided according to the aim of improving either biology or biomechanics. Surgeries aimed at improving the biology, such as vascularized fibula grafting, have good success rates but require high levels of expertise and substantial resources. A popular surgical treatment aimed at improving the biomechanics-valgus intertrochanteric osteotomyoptimizes conditions for fracture healing by converting shear forces across the fracture site into compressive forces. Numerous variations of this surgical procedure have been developed and successfully applied in clinical practice. As a result, the proximal femoral orientation for obtaining a good functional outcome has evolved over the years, and the present concept of altering the proximal femoral anatomy as little as possible has arisen. This technical objective supports attaining union as well as a good functional outcome, since excessive valgus can lead to increased joint reaction forces. This review summarizes the historical and current literature on valgus intertrochanteric osteotomy treatment of nonunion neck of femur, with a focus on factors predictive of good functional outcome and potential pitfalls to be avoided as well as controversies surrounding this procedure.