Background: Biplanar medial opening wedge high tibial osteotomy (MOWHTO) is a treatment method that allows adequate correction of symptomatic varus knee deformity. However, MOWHTO tends to decrease patellar height and...Background: Biplanar medial opening wedge high tibial osteotomy (MOWHTO) is a treatment method that allows adequate correction of symptomatic varus knee deformity. However, MOWHTO tends to decrease patellar height and increase the posterior tibial slope, which can affect the knee joint stability. Objective: The aim of this study was to describe the technique of biplanar MOWHTO and fixation by TomoFix plate, as well as to evaluate the accuracy of the planned correction and the postoperative tibial slope. Patients and Methods: This prospective cohort study was conducted on patients who presented with varus knee deformity and underwent biplanar MOWHTO and fixation by TomoFix plate during the period from March 2016 to March 2017. Assessment of patients included pre- and postoperative Knee and function scores, mechanical femorotibial angle (mFTA), posterior tibial slope angle (pTSA), range of motion (ROM) and radiological evaluation of the healing of the osteotomy site. Results: The recruited patients were 13 (8 men and 5 women), with average age 31.7 years old. The knee and functional scores improved from the preoperative mean of 45 and 41 to the postoperative mean of 85 and 72 points, respectively. The average knee flexion was 115 degrees, which at the final follow-up remained unchanged except for one case. The mean preoperative mFTA was 13.5°varus and decreased post-operatively to a mean of 3°valgus. The average postoperative follow-up period was 12 months (10 - 18 M). Conclusion: The biplanar MOWHTO allows preservation of posterior tibial slope while correcting the varus knee adequately.展开更多
Main intention of the research is to understand about significance of techniques associated with HTO. This research reviewed the techniques of high tibial osteotomy namely high tibial osteotomy, open wedge high tibial...Main intention of the research is to understand about significance of techniques associated with HTO. This research reviewed the techniques of high tibial osteotomy namely high tibial osteotomy, open wedge high tibial osteotomy, closedhigh tibial osteotomy. Patients who are suffering from knee arthritis, high tibial osteotomy assists to prevent or delay the requirement for total or partial replacement of knee to preserve damaged tissue of joint. High tibial osteotomy technique is mainly suitable for active and young patients with knee osteoarthritis. Age plays a main factor in success rate of high tibial osteotomy technique. It could be done in open wedge or closed wedge high tibial osteotomy. For some cases, surgery could be done in combined method (open wedge and closed wedge high tibial osteotomy). When compared with clinical outcomes of closed wedge high tibial osteotomy and open wedge high tibial osteotomy, open wedge high tibial osteotomy performs well in reducing the pain, duration of weight-bearing and return to normal life as soon as possible.展开更多
Lateral closing wedge osteotomy is a treatment for Kienbock’s disease. It is one of the most frequently used treatment options, which has been reported with relatively good long-term results. However, the results abo...Lateral closing wedge osteotomy is a treatment for Kienbock’s disease. It is one of the most frequently used treatment options, which has been reported with relatively good long-term results. However, the results about the treatment are still controversial in some literatures and some key mechanisms are still not clear. The objective of the cur-rent study was to study the biomedical mechanism of the treatment. A finite element model was developed based on the geometry of carpal bones. Various situations in-cluding inclination angle changes by cutting the radial with 0?, 5?, 10? and 15? osteot-omy angles were studied. The effectiveness of the treatment was also studied for the carpal structure with abnormal positions of the lunate bone. The results show that the effectiveness of the stress reduction with the angle depends on many situations such as the initial morphology of the carpal structure.展开更多
目的研究内侧开放楔形胫骨高位截骨术(opening-wedge high tibial osteotomy,OWHTO)治疗膝骨关节炎(knee osteoarthritis,KOA)术中矢状面楔形撑开对胫骨平台后倾角(posterior tibial slope,PTS)的影响。方法回顾性分析2019年1月至2020年...目的研究内侧开放楔形胫骨高位截骨术(opening-wedge high tibial osteotomy,OWHTO)治疗膝骨关节炎(knee osteoarthritis,KOA)术中矢状面楔形撑开对胫骨平台后倾角(posterior tibial slope,PTS)的影响。方法回顾性分析2019年1月至2020年7月,山东省中医院运动损伤骨科接受OWHTO治疗的63例KOA患者的临床资料。研究组31例,其中男13例,女18例;年龄50~65岁,平均(56.29±3.49)岁;身体质量指数(body mass index,BMI)为(26.48±1.77)kg/m~2;按照上下1/2~2/3的近似比例在矢状面楔形撑开截骨间隙。对照组32例,男14例,女18例;年龄49~59岁,平均(55.66±2.66)岁;BMI(27.13±2.39)kg/m~2;常规撑开间隙。术前两组患者性别、年龄、BMI、疼痛视觉模拟评分(visual analogu scale,VAS)、美国特种外科医院(hospital for special surgery,HSS)评分、Lysholm评分、PTS等差异均无统计学意义(P>0.05)。术后1周之内首次拍片和末次随访时测量PTS并与术前比较;术前及末次随访时采用VAS评分、HSS评分和Lysholm评分评估患者膝关节疼痛及功能情况。结果两组患者均获随访,随访时间22~32个月,平均(26.81±2.12)个月。两组患者均未出现血管神经损伤、下肢静脉血栓形成等并发症。末次随访时,两组患者VAS评分、HSS评分和Lysholm评分均较术前显著改善,差异有统计学意义(P<0.05);但组间各评分在各时间点的比较,差异均无统计学意义(P>0.05)。研究组各时间点PTS差异均无统计学意义(P>0.05);对照组术后及末次随访时PTS较术前明显增加(P<0.05);术后及末次随访时研究组患者PTS均显著小于对照组,差异有统计学意义(P<0.05)。结论采用OWHTO治疗KOA能有效缓解膝关节疼痛并改善其功能,且通过矢状面楔形撑开可有效避免PTS的增加。展开更多
Background:Andersson lesions(ALs),also known as spondylodiscities,destructive vertebral lesions and spinal pseudarthrosis,usually occur in patients with ankylosing spondylitis(AS).Inflammatory and traumatic causes hav...Background:Andersson lesions(ALs),also known as spondylodiscities,destructive vertebral lesions and spinal pseudarthrosis,usually occur in patients with ankylosing spondylitis(AS).Inflammatory and traumatic causes have been proposed to define this lesion.Different surgical approaches including anterior,posterior,and combined anterior and posterior procedure have been used to address the complications,consisting of mechanical pain,kyphotic deformity,and neurologic deficits.However,the preferred surgical procedure remains controversial.The aim of this study was to illustrate the safety,efficacy,and feasibility of a modified posterior wedge osteotomy for the ALs with kyphotic deformity in AS.Methods:From June 2008 to January 2013,23 patients(18 males,5 females)at an average age of 44.8 years(range 25–69 years)were surgically treated for thoracolumbar kyphosis with ALs in AS via a modified posterior wedge osteotomy in our department.All sagittal balance parameters were assessed by standing lateral radiography of the whole spine before surgery and during the followup period.Assessment of radiologic fusion at follow-up was based on the Bridwell interbody fusion grading system.Ankylosing spondylitis quality of life(ASQoL)and visual analog scale(VAS)scores were performed to evaluate improvements in daily life function and back pain pre-operatively and post-operatively.Paired t tests were used to compare clinical data change in parametric values before and after surgery and the Mann-Whitney U test was employed for non-parametric comparisons.The radiographic data change was evaluated by repeated measure analysis of variance.Results:The mean operative duration was 205.4 min(range 115–375 min),with an average blood loss of 488.5 mL(range 215–880 mL).Radiographical and clinical outcomes were assessed after a mean of 61.4 months of follow-up.The VAS back pain and ASQoL scores improved significantly in all patients(7.52±1.31 vs.1.70±0.70,t=18.30,P<0.001;13.87±1.89 vs.7.22±1.24,t=18.53,P<0.001,respectively).The thoracolumbar kyphosis(TLK)changed from 40.03±17.61°pre-operatively to 13.86±6.65°post-operatively,and 28.45±6.63°at final follow-up(F=57.54,P<0.001),the thoracic kyphosis(TK)changed from 52.30±17.62°pre-operatively to 27.76±6.50°post-operatively,and 28.45±6.63°at final follow-up(F=57.29,P<0.001),and lumbar lordosis(LL)changed from29.56±9.73°pre-operatively to20.58±9.71°post-operatively,and20.73±10.27°at final follow-up(F=42.50,P<0.001).Mean sagittal vertical axis(SVA)was improved from 11.82±4.55 cm pre-operatively to 5.12±2.42 cm post-operatively,and 5.03±2.29 cm at final follow-up(F=79.36,P<0.001).No obvious loss of correction occurred,according to the lack of significant differences in the sagittal balance parameters between post-operatively and the final follow-up in all patients(TK:27.76±6.50°vs.28.45±6.63°,TLK:13.86±6.65°vs.14.42±6.7°,LL:20.58±9.71°vs.20.73±10.27°,and SVA:5.12±2.42 cm vs.5.03±2.29 cm,all P>0.05,respectively).Conclusions:The modified posterior wedge osteotomy is an accepted surgical procedure for treating thoracolumbar kyphosis with ALs in AS and results in satisfactory local kyphosis correction,solid fusion,and good clinical outcomes.展开更多
文摘Background: Biplanar medial opening wedge high tibial osteotomy (MOWHTO) is a treatment method that allows adequate correction of symptomatic varus knee deformity. However, MOWHTO tends to decrease patellar height and increase the posterior tibial slope, which can affect the knee joint stability. Objective: The aim of this study was to describe the technique of biplanar MOWHTO and fixation by TomoFix plate, as well as to evaluate the accuracy of the planned correction and the postoperative tibial slope. Patients and Methods: This prospective cohort study was conducted on patients who presented with varus knee deformity and underwent biplanar MOWHTO and fixation by TomoFix plate during the period from March 2016 to March 2017. Assessment of patients included pre- and postoperative Knee and function scores, mechanical femorotibial angle (mFTA), posterior tibial slope angle (pTSA), range of motion (ROM) and radiological evaluation of the healing of the osteotomy site. Results: The recruited patients were 13 (8 men and 5 women), with average age 31.7 years old. The knee and functional scores improved from the preoperative mean of 45 and 41 to the postoperative mean of 85 and 72 points, respectively. The average knee flexion was 115 degrees, which at the final follow-up remained unchanged except for one case. The mean preoperative mFTA was 13.5°varus and decreased post-operatively to a mean of 3°valgus. The average postoperative follow-up period was 12 months (10 - 18 M). Conclusion: The biplanar MOWHTO allows preservation of posterior tibial slope while correcting the varus knee adequately.
文摘Main intention of the research is to understand about significance of techniques associated with HTO. This research reviewed the techniques of high tibial osteotomy namely high tibial osteotomy, open wedge high tibial osteotomy, closedhigh tibial osteotomy. Patients who are suffering from knee arthritis, high tibial osteotomy assists to prevent or delay the requirement for total or partial replacement of knee to preserve damaged tissue of joint. High tibial osteotomy technique is mainly suitable for active and young patients with knee osteoarthritis. Age plays a main factor in success rate of high tibial osteotomy technique. It could be done in open wedge or closed wedge high tibial osteotomy. For some cases, surgery could be done in combined method (open wedge and closed wedge high tibial osteotomy). When compared with clinical outcomes of closed wedge high tibial osteotomy and open wedge high tibial osteotomy, open wedge high tibial osteotomy performs well in reducing the pain, duration of weight-bearing and return to normal life as soon as possible.
文摘Lateral closing wedge osteotomy is a treatment for Kienbock’s disease. It is one of the most frequently used treatment options, which has been reported with relatively good long-term results. However, the results about the treatment are still controversial in some literatures and some key mechanisms are still not clear. The objective of the cur-rent study was to study the biomedical mechanism of the treatment. A finite element model was developed based on the geometry of carpal bones. Various situations in-cluding inclination angle changes by cutting the radial with 0?, 5?, 10? and 15? osteot-omy angles were studied. The effectiveness of the treatment was also studied for the carpal structure with abnormal positions of the lunate bone. The results show that the effectiveness of the stress reduction with the angle depends on many situations such as the initial morphology of the carpal structure.
文摘目的研究内侧开放楔形胫骨高位截骨术(opening-wedge high tibial osteotomy,OWHTO)治疗膝骨关节炎(knee osteoarthritis,KOA)术中矢状面楔形撑开对胫骨平台后倾角(posterior tibial slope,PTS)的影响。方法回顾性分析2019年1月至2020年7月,山东省中医院运动损伤骨科接受OWHTO治疗的63例KOA患者的临床资料。研究组31例,其中男13例,女18例;年龄50~65岁,平均(56.29±3.49)岁;身体质量指数(body mass index,BMI)为(26.48±1.77)kg/m~2;按照上下1/2~2/3的近似比例在矢状面楔形撑开截骨间隙。对照组32例,男14例,女18例;年龄49~59岁,平均(55.66±2.66)岁;BMI(27.13±2.39)kg/m~2;常规撑开间隙。术前两组患者性别、年龄、BMI、疼痛视觉模拟评分(visual analogu scale,VAS)、美国特种外科医院(hospital for special surgery,HSS)评分、Lysholm评分、PTS等差异均无统计学意义(P>0.05)。术后1周之内首次拍片和末次随访时测量PTS并与术前比较;术前及末次随访时采用VAS评分、HSS评分和Lysholm评分评估患者膝关节疼痛及功能情况。结果两组患者均获随访,随访时间22~32个月,平均(26.81±2.12)个月。两组患者均未出现血管神经损伤、下肢静脉血栓形成等并发症。末次随访时,两组患者VAS评分、HSS评分和Lysholm评分均较术前显著改善,差异有统计学意义(P<0.05);但组间各评分在各时间点的比较,差异均无统计学意义(P>0.05)。研究组各时间点PTS差异均无统计学意义(P>0.05);对照组术后及末次随访时PTS较术前明显增加(P<0.05);术后及末次随访时研究组患者PTS均显著小于对照组,差异有统计学意义(P<0.05)。结论采用OWHTO治疗KOA能有效缓解膝关节疼痛并改善其功能,且通过矢状面楔形撑开可有效避免PTS的增加。
文摘Background:Andersson lesions(ALs),also known as spondylodiscities,destructive vertebral lesions and spinal pseudarthrosis,usually occur in patients with ankylosing spondylitis(AS).Inflammatory and traumatic causes have been proposed to define this lesion.Different surgical approaches including anterior,posterior,and combined anterior and posterior procedure have been used to address the complications,consisting of mechanical pain,kyphotic deformity,and neurologic deficits.However,the preferred surgical procedure remains controversial.The aim of this study was to illustrate the safety,efficacy,and feasibility of a modified posterior wedge osteotomy for the ALs with kyphotic deformity in AS.Methods:From June 2008 to January 2013,23 patients(18 males,5 females)at an average age of 44.8 years(range 25–69 years)were surgically treated for thoracolumbar kyphosis with ALs in AS via a modified posterior wedge osteotomy in our department.All sagittal balance parameters were assessed by standing lateral radiography of the whole spine before surgery and during the followup period.Assessment of radiologic fusion at follow-up was based on the Bridwell interbody fusion grading system.Ankylosing spondylitis quality of life(ASQoL)and visual analog scale(VAS)scores were performed to evaluate improvements in daily life function and back pain pre-operatively and post-operatively.Paired t tests were used to compare clinical data change in parametric values before and after surgery and the Mann-Whitney U test was employed for non-parametric comparisons.The radiographic data change was evaluated by repeated measure analysis of variance.Results:The mean operative duration was 205.4 min(range 115–375 min),with an average blood loss of 488.5 mL(range 215–880 mL).Radiographical and clinical outcomes were assessed after a mean of 61.4 months of follow-up.The VAS back pain and ASQoL scores improved significantly in all patients(7.52±1.31 vs.1.70±0.70,t=18.30,P<0.001;13.87±1.89 vs.7.22±1.24,t=18.53,P<0.001,respectively).The thoracolumbar kyphosis(TLK)changed from 40.03±17.61°pre-operatively to 13.86±6.65°post-operatively,and 28.45±6.63°at final follow-up(F=57.54,P<0.001),the thoracic kyphosis(TK)changed from 52.30±17.62°pre-operatively to 27.76±6.50°post-operatively,and 28.45±6.63°at final follow-up(F=57.29,P<0.001),and lumbar lordosis(LL)changed from29.56±9.73°pre-operatively to20.58±9.71°post-operatively,and20.73±10.27°at final follow-up(F=42.50,P<0.001).Mean sagittal vertical axis(SVA)was improved from 11.82±4.55 cm pre-operatively to 5.12±2.42 cm post-operatively,and 5.03±2.29 cm at final follow-up(F=79.36,P<0.001).No obvious loss of correction occurred,according to the lack of significant differences in the sagittal balance parameters between post-operatively and the final follow-up in all patients(TK:27.76±6.50°vs.28.45±6.63°,TLK:13.86±6.65°vs.14.42±6.7°,LL:20.58±9.71°vs.20.73±10.27°,and SVA:5.12±2.42 cm vs.5.03±2.29 cm,all P>0.05,respectively).Conclusions:The modified posterior wedge osteotomy is an accepted surgical procedure for treating thoracolumbar kyphosis with ALs in AS and results in satisfactory local kyphosis correction,solid fusion,and good clinical outcomes.
