A Biomechanical Comparison of Conventional versus an Anatomic Plate and Compression Bolts for Fixation of Intra-articular Calcaneal Fractures

The purpose of this study was to compare the biomechanical stability obtained by using our technique featured an anatomical plate and compression bolts versus that of the conventional anatomic plate and cancellous screws in the fixation of intraarticular calcaneal fractures.Eighteen fresh frozen lower limbs of cadavers were used to create a reproductive Sanders type-Ⅲ calcaneal fracture model by using osteotomy.The calcaneus fractures were randomly selected to be fixed either using our anatomical plate and compression bolts or conventional anatomic plate and cancellous screws.Reduction of fracture was evaluated through X radiographs.Each calcaneus was successively loaded at a frequency of 1 Hz for 1000 cycles through the talus using an increasing axial force 20 N to 200 N and 20 N to 700 N,representing the partial weight bearing and full weight bearing,respectively,and then the specimens were loaded to failure.Data extracted from the mechanical testing machine were recorded and used to test for difference in the results with the Wilcoxon signed rank test.No significant difference was found between our fixation technique and conventional technique in displacement during 20-200 N cyclic loading(P=0.06),while the anatomical plate and compression bolts showed a great lower irreversible deformation during 20-700 N cyclic loading(P=0.008).The load achieved at loss of fixation of the constructs for the two groups had significant difference:anatomic plate and compression bolts at 3839.6±152.4 N and anatomic plate and cancellous screws at 3087.3±58.9 N(P=0.008).There was no significant difference between the ultimate displacements.Our technique featured anatomical plate and compression bolts for calcaneus fracture fixation was demonstrated to provide biomechanical stability as good as or better than the conventional anatomic plate and cancellous screws under the axial loading.The study supports the mechanical viability of using our plate and compression bolts for the fixation of calcaneal fracture.

The Use of Calcaneal Anatomic Plate in Arthroscopically-assisted Open Reduction and Internal Fixation of Intra-articular Calcaneal Fractures

To discuss and evaluate the method and effect of using calcaneal anatomic plate in treatment of intra-articular fractures of the calcaneus with assistant of arthroscope, 86 intra-articular fractures of the calcaneus in 78 patients were reduced by open reduction, and rigid fixation was made with calcaneal anatomic plate under assistant of arthroscope. The average follow-up duration was 18 months （range 12-30 months）. The effect of treatment was evaluated according to AOFAS and X-ray before and after operation. The results showed that 86 patients have obtained satisfactory reduction according to X-ray, and there was significant difference before and after operation （P〈0. 01）, the total excellent and fine rate was 91.86%. Treating intra-articular fractures of the calcaneus with calcaneal anatomic plate under arthroscope may provide more chance to achieve anatomical reconstruction, which can lead to satisfied recovery of function and few complication.

Biomechanical comparison of locking plate and crossing metallic and absorbable screws fixations for intra-articular calcaneal fractures

The locking plate and percutaneous crossing metallic screws and crossing absorbable screws have been used clinically to treat intra-articular calcaneal fractures, but little is known about the biomechanical differences between them. This study compared the biomechanical stability of calcaneal fractures fixed using a locking plate and crossing screws. Three-dimensional finite-element models of intact and fractured calcanei were developed based on the CT images of a cadaveric sample. Surgeries were simulated on models of Sanders type III calcaneal fractures to produce accurate postoperative models fixed by the three implants. A vertical force was applied to the superior surface of the subtalar joint to simulate the stance phase of a walking gait. This model was validated by an in vitro experiment using the same calcaneal sample. The intact calcaneus showed greater stiffness than the fixation models. Of the three fixations, the locking plate produced the greatest stiffness and the highest von Mises stress peak. The micromotion of the fracture fixated with the locking plate was similar to that of the fracture fixated with the metallic screws but smaller than that fixated with the absorbable screws. Fixation with both plate and crossing screws can be used to treat intra-articular calcaneal fractures. In general, fixation with crossing metallic screws is preferable because it provides sufficient stability with less stress shielding.

First Ever Documented Total Calcaneus Replacement with 3D Printed Metallic Implant for Chronic Osteomyelitis after a Calcaneal Fracture in a Young, Healthy Individual—A Literature Review and Preliminary Case Report

Osteomyelitis of the calcaneus can be a limb threatening diagnosis, which is typically treated with antibiotic therapy with or without partial resection of the bone. Extensive infection of the bone commonly results in limb amputation via transtibial or transfemoral amputation, which can increase morbidity and mortality. This case report involves a 29-year-old male who sustained bilateral calcaneal fracture after a fall, who developed osteomyelitis of the right calcaneus after being treated with internal/external fixation and antibiotic therapy. In order to preserve the limb total calcaneal replacement with 3D printed implant was done.

Fixation of Calcaneal Tuberosity Beavis II Fracture in Elderly Patients Using Locking Plate Combined with Tension Screw

Background:Calcaneus is the largest bone of foot and the main load-bearing structure of heel.The incidence of simple calcaneal tubercle avulsion fracture is low,accounting for about 1%to 3%of all calcaneal fractures.Beavis II fracture has large bone fracture,obvious displacement,obvious soft tissue irritation,and often leads to skin necrosis.It needs surgical treatment,reduction and fixation as soon as possible.Although open reduction and tension screw internal fixation is used for Beavis II calcaneal tubercle fracture,but the failure rate is more common.Methods:This study retrospectively analyzed the surgical treatment of calcaneal tubercle Beavis II fracture over 55 years old in our hospital from January 2013 to January 2019.The patients were treated with tension screw combined with locking plate,and followed up and analyzed.Results:12 patients in this group were followed up for 12 to 36 months(mean 20 months).After operation,the fracture healed smoothly in all patients,the healing time was 8 to 12 weeks(mean 10.7 weeks),and there were no complications such as poor incision healing,fracture displacement,internal fixation loosening,fracture and so on.When the patients were followed up 18 weeks after operation,the AOFAS score was 47 to 100,with an average of 91.1,of which 8 cases were excellent,3 good and 1 poor,with an excellent and good rate of 91.7%.Conclusion:Our hospital has been treated with tension screw combined with locking plate,fixed firmly,can early functional exercise,achieved good results.

Spontaneous calcaneal fracture in patients with diabetic foot ulcer: Four cases report and review of literature

Spontaneous calcaneal fractures in diabetic patients without obvious trauma may occur, sometimes accompanying diabetic foot ulcers. In the current study we report four cases who were hospitalized for diabetic foot ulcer with concomitant calcaneal fractures. There were four diabetic patients(one type 1 and three type 2) who registered with diabetic foot ulcers with coexisting calcaneal fractures, all of which were classified as Type A according to Essex Lopresti Calcaneal Fracture Classification. Two of the patients with renal failure were in a routine dialysis program, as well as vascular compromise and osteomyelitis in all of the patients. The diabetic foot ulcer of the 61 years old osteoporotic female patient healed with local debridement, vacuum assisted closure and then epidermal growth factor while the calcaneal fracture was then followed by elastic bandage. In two patients could not prevent progression of diabetic foot ulcers and calcaneal fractures to consequent below-knee amputation. The only patient with type 1 diabetes mellitus improved with antibiotic therapy and split thickness skin grafting, while the calcaneal fracture did not heal. In the current study we aimed to emphasize the spontaneous calcaneal fractures as possible co-existing pathologies in patients with diabetic foot ulcers. After all the medical treatment, amputation below knee had to be performed in 2 patients. It should be noted that other accompanying conditions such as impaired peripheral circulation, osteomyelitis, chronic renal failure, and maybe osteoporosis is a challenge of the recovery of calcaneal fractures and accelerate the progress to amputation in diabetic patients.

External fixation is more suitable for intra-articular fractures of the distal radius in elderly patients

The purpose of this study was to compare the functional outcomes, psychological impact, and complication rates associated with external fixation and volar or dorsal plating in relation to the functional parameters following treatment of intra-articular fractures of the distal radius （IFDR） in patients older than 65 years. We hypothesized that using volar or dorsal plating would improve functional outcomes, but that it would be associated with more complications and equivalent functional outcomes when compared with the external fixation group. A total of 123 consecutive patients suffering from IFDR were recruited into the study. The patients were measured for clinical, radiological, and psychosocial functioning outcomes and were followed up after I week and 3, 6 and 12 months. After 3 months, the plating group had better pronation （P = 0.001）, supination, （P = 0.047） and extension （P = 0.043） scores. These differences were somewhat attenuated by 6 months and disappeared at I year. The plating group had a greater occurrence of wound infection （P = 0.043）, tendonitis, （P = 0.024） and additional surgery compared with the external fixation group. The only TNO-AZL Adult Quality of Life scores in the plating group that were lower than those in the external fixation group were in the ＂gross motor＂ category （walking upstairs, bending over, walking 500 yards; P = 0.023）. Internal fixation was more advantageous than external fixation in the early rehabilitation period; after I year the outcomes were similar. The plating group showed significantly higher levels of wound infection and tendonitis and had a greater need for additional surgeries.

Operative vs nonoperative treatment of displaced intraarticular calcaneal fracture: A meta-analysis of randomized controlled trials

AIM: To investigate clinical efficacy of displaced intraarticular calcaneal fracture(DIACF) following operation and nonoperation. METHODS: Literature search was performed of Pub Med and Cochrane Library by two independent authors to identify randomized controlled trials(RCTs) comparing operative vs nonoperative treatment of DIACF from inception to December 31 st, 2013. RCT quality was evaluated by the modified Jadad scale. Dichotomous variables were pooled using risk ratios by review manager 5.3 software. Fixed-effects or randomeffects models were adopted with P > 0.05 or P ≤ 0.05 for heterogeneity tests, respectively.RESULTS: Eight RCTs comprising 767 cases met inclusion criteria. Results revealed that more surgically treated patients could resume pre-injury job(P = 0.006). No statistical differences were found between the two groups in residual pain(P = 0.33), shoe fitting problems(P = 0.07), limited walking distance(P = 0.56) or secondary late arthrodesis(P = 0.38). However, operative treatment was associated with a higher complication rate(P = 0.003). Subgroup analyses of specific complications revealed that except for a higher risk of superficial wound problems(P < 0.0001) in operative group, the two groups had similar complication rate in deep wound infection(P = 0.34),compartment syndrome(P = 0.46), thromboembolism(P = 0.32), reflex sympathetic dystrophy(P = 0.51) or traumatic arthritis secondary to DIACF(P = 0.43).CONCLUSION: Current evidence demonstrates that compared with operative treatment, conservative treatment of DIACF lead to similar clinical outcomes regarding residual pain, shoe fitting, walking distance and secondary subtalar arthrodesis but a significantly lower complication rate.

Ilizarov external fixators for maluninon of obsolete calcaneal fracture of Stephen Type Ⅲ

Objective To evaluate the clinical effects of Ilizarov external fixator for maluninon of obsolete calcaneal fracture of Stephen Type Ⅲ.Methods From July 2006 to February 2009,25 patients suffering from maluninon of obsolete calcaneal

Total knee arthroplasty and fractures of the tibial plateau

Tibial plateau fractures are common injuries that occur in a bimodal age distribution. While there are various treatment options for displaced tibial plateau fractures, the standard of care is open reduction and internal fixation(ORIF). In physiologically young patients with higher demand and better bone quality, ORIF is the preferred method of treating these fractures. However, future total knee arthroplasty(TKA) is a consideration in these patients as post-traumatic osteoarthritis is a common long-term complication of tibial plateau fractures. In older, lower demand patients, ORIF is potentially less favorable for a variety of reasons, namely fixation failure and the need for delayed weight bearing. In some of these patients, TKA can be considered as primary mode of treatment. This paper will review the literature surrounding TKA as both primary treatment and as a salvage measure in patients with fractures of the tibial plateau. The outcomes, complications, techniques and surgical challenges are also discussed.

Is Wound Complication a Deterrent to Lateral Extensile Approach in Calcaneus Fracture?

Introduction: The lateral extensile approach has been a widely accepted surgical approach in treatment of intraarticular calcaneal fracture. It provides good exposure for fixation by correcting the hindfoot varus, fracture reduction and restores calcaneal height but it has a high wound complication rate. Methods and materials: 36 intraarticular calcaneal fractures (Sanders II, III and IV) treated using the lateral extensile approach in 34 patients presenting between 2015 and 2018 were retrospectively reviewed. Wound complication in the early stage (day 1 to day 3), intermediate (2 weeks) and late (6 weeks) were documented. Results: We found early (Day 1 - Day 3) infection rate of 5.6%, intermediate (2 weeks) at 17.6% and late wound complication (6 weeks) at 2.9%. Conclusion: Lateral expansile approach is a reliable surgical exposure for fracture reduction of calcaneal fractures with acceptable wound related complication rate. Minimally invasive techniques and the sinus tarsi approach are being used for less comminuted fractures, but those techniques are technically more demanding. Smoking, long duration of surgery and soft tissue handling also play a role in increasing wound complication rates.

Dynamic External Fixator Combined with Volar Locking Plate Fixation for the Treatment of AO Type C3 Distal Radius Fractures

Background: AO type C3 distal radius fracture (DRF) is the most difficult-to-treat fracture type because of a tendency to shorten and collapse. The purpose of this study is to investigate the clinical and radiographic outcomes of comminuted intra-articular DRFs treated with a dynamic external fixator combined with a volar locking plate (VLP). Methods: Eleven patients (mean age, 61 years) with comminuted intra-articular DRFs were treated with a dynamic type of external fixator combined with a VLP. Following reduction and fixation with a VLP, the dynamic external fixator was applied and the distal ball joint of the fixator was aligned with the lunate-capitate line. The ball joint was unlocked approximately 2 weeks after surgery to allow wrist mobilization. The fixator was removed 3 - 6 weeks (mean, 5 weeks) after surgery. Consequently, clinical and radiographic assessments were carried out at the final follow-up. Results: At the final follow-up, the mean range values of wrist extension and flexion were 76&deg;and 64&deg;, respectively. Compared with the contralateral side, the mean grip strength was 84%. The mean Modified Mayo Wrist Score and the Disabilities of the Arm, Shoulder and Hand score were 88 and 9, respectively. No significant differences in the radiographic parameters exist between after surgery and final follow-up. Conclusions: This study indicated that the dynamic wrist fixator combined with a VLP is effective for the treatment of AO type C3 DRFs.

超声引导下股神经、坐骨神经阻滞在跟骨骨折手术麻醉中的应用效果

目的:探究超声引导下股神经、坐骨神经阻滞在跟骨骨折手术麻醉中的应用效果。方法:选取2020年2月—2023年2月菏泽医学专科学校附属医院收治的跟骨骨折患者80例,以随机数字表法将其均分为对照组(椎管内麻醉)及观察组(超声引导下股神经、坐骨神经阻滞)各40例,对比两组麻醉效果;对比两组麻醉前(T_(0))、麻醉后5 min(T_(1))、麻醉后10 min(T_(2))、麻醉后15 min(T_(3))、麻醉后30min(T_(4))时刻的心率(HR)、平均动脉压(MAP)、血氧饱和度(SpO_(2));对比两组应激反应指标[肾上腺素(E)、皮质醇(Cor)]、凝血功能[凝血酶时间(TT)、凝血酶原时间(PT)、活化部分凝血活酶时间(APTT)]、不良反应发生率。结果:观察组麻醉效果Ⅰ级率高于对照组,差异有统计学意义(P<0.05)。两组T_(0)、T_(1)时刻HR、MAP、SpO_(2)水平比较差异均无统计学意义(P>0.05);对照组T_(2)、T_(3)、T_(4)时刻HR、MAP均高于T_(0)时刻,SpO_(2)均低于T_(0)时刻,差异均有统计学意义(P<0.05);观察组T_(2)、T_(3)、T_(4)时刻HR、MAP、SpO_(2)较T_(0)时刻差异均无统计学意义(P>0.05);观察组T_(2)、T_(3)、T_(4)时刻HR、MAP均低于对照组,SpO_(2)均高于对照组,差异均有统计学意义(P<0.05)。术前,两组E、Cor水平相较差异均无统计学意义(P>0.05);术后1 h两组E、Cor水平均升高,但观察组均低于对照组,差异均有统计学意义(P<0.05)。术前,两组TT、PT、APTT水平相较差异均无统计学意义(P>0.05);术后1 h,两组TT、PT、APTT水平均升高,且观察组均高于对照组,差异均有统计学意义(P<0.05)。观察组不良反应发生率低于对照组,差异有统计学意义(P<0.05)。结论:对跟骨骨折患者实施超声引导下股神经、坐骨神经阻滞,麻醉效果显著,减轻应激反应,稳定术中血流动力学,改善血液高凝状态,降低并发症发生率。

1例先天性无痛无汗症合并跟骨骨折患儿的护理

总结1例先天性无痛无汗症合并跟骨骨折患儿的围术期护理。护理要点主要包括:充分的入院评估和宣教、保持皮肤完整性、高热的处理、石膏的护理、个性化的功能锻炼、详细的出院指导和延续性护理等。经过全方位的评估和诊疗,最终给予患儿石膏靴外固定保守治疗,患儿体温平稳、皮肤无破损,于5 d后出院。对其随访8个月,患肢功能恢复良好,不影响日常生活。

三维数字模型辅助微创穿针与钢板内固定治疗SandersⅡ、Ⅲ型跟骨骨折

背景:目前,对于SandersⅡ、Ⅲ型跟骨骨折患者,常用治疗方式为切开复位内固定术、微创穿针技术,对于两者临床疗效的对比较少且尚缺少高级别临床证据。目的:比较三维数字模型辅助微创穿针与跗骨窦切口入路钢板内固定治疗SandersⅡ、Ⅲ型跟骨骨折的疗效。方法:将2021年1月至2022年10月在河北省沧州中西医结合医院骨科治疗的80例SandersⅡ、Ⅲ型跟骨骨折患者随机分为对照组40例和观察组40例。对照组给予传统跗骨窦入路手法复位钢板内固定治疗,观察组给予三维数字模型辅助微创交叉穿针固定治疗。记录两组患者手术时间、失血量、住院时间、骨折愈合时间,观察两组患者术前和术后12个月Maryland评分、AO-FAS评分、目测类比评分、生活质量评分(SF-36评分)、影像学参数(Böhler角、Gissane角,跟骨长度、宽度、高度)变化,并记录随访过程中并发症发生情况。结果与结论:①观察组手术时间、失血量、住院时间、骨折愈合时间均少于对照组(P均<0.05);②两组患者治疗后Maryland评分、AO-FAS评分、SF-36评分和Böhler角、Gissane角、跟骨长度、跟骨高度明显高于治疗前(P均<0.05);目测类比评分、跟骨宽度明显低于治疗前(P均<0.05);③随访12个月,观察组并发症发生率均低于对照组(P均<0.05);④结果表明,应用三维数字模型辅助微创穿针固定疗法治疗SandersⅡ、Ⅲ型跟骨骨折可明显改善手术时间、出血量等多项围术期指标,并可减少多种并发症的发生,足踝功能恢复、疼痛症状缓解、提高生活质量方面与传统疗法相当。

三维组架螺钉与微创钢板固定SandersⅢ型跟骨骨折的有限元分析

背景:经皮复位加压固定的三维组架螺钉内固定在治疗SandersⅢ型跟骨骨折上已经取得了满意的临床疗效,但在生物力学方面是否可以达到微创钢板内固定的稳定性,以及对比之后的优势与缺点还不得而知。目的:通过有限元分析方法探讨不同内固定装置对SandersⅢ型跟骨骨折的固定效果。方法:选择1名26岁成年健康男性志愿者,根据其跟骨CT数据制作SandersⅢ型跟骨骨折有限元模型。选用经皮微创三维组架螺钉、跗骨窦微创钢板分别固定跟骨骨折模型,分别施加350,700N纵向载荷,分析2种模型的位移、应力分布情况,比较各种模型的稳定性。结果与结论:①三维组架螺钉模型中骨块与内植物的峰值应力明显低于微创钢板模型,三维组架螺钉模型中骨块与内植物的平均应力也明显低于微创钢板模型;②2种模型的最大位移均位于后距关节面内侧,三维组架螺钉模型的最大位移小于微创钢板模型;③微创钢板模型前突骨块与内侧骨块的纵向位移更小,三维组架螺钉模型内侧骨块与中段骨块的横向与垂直位移更小;④提示2种内固定模型均能提供满意的固定效果,其中三维组架螺钉模型使应力分布更均匀、骨块综合位移更小,能提供更好的横向与垂直稳定性,而微创钢板在维持纵向稳定性上更具优势。

跟骨骨折畸形愈合的治疗进展

跟骨骨折的保守治疗和手术治疗后均可能出现跟骨骨折畸形愈合。骨折位移通常导致跟骨高度丧失、足跟内翻、跟骨结节增粗、关节面台阶,可能引起前踝撞击、腓骨下撞击、腓骨肌腱刺激、创伤后关节炎。对于有症状的跟骨畸形患者,需要进行系统性评估以确定疼痛的来源。非手术治疗如活动调整、康复锻炼、矫形鞋和疼痛注射等有一定的疗效。对于严重跟骨畸形的患者,手术治疗可能更常见,手术方式包括各类截骨术、距跟关节融合术、撑开植骨术、环形外架分期手术等。具体手术方案的选择需根据跟骨畸形的具体机制、一般情况以及预期目标来选择。

采用改良跟骨锁定板治疗Sanders分型Ⅲ~Ⅳ型跟骨骨折的疗效观察

目的探讨改良跟骨锁定板治疗Sanders分型Ⅲ~Ⅳ型跟骨骨折的疗效。方法回顾性分析山西医科大学第二医院骨科2021年1月至2022年8月期间采用改良跟骨锁定板(改良组)和普通跟骨锁定板(传统组)治疗跟骨骨折Sanders分型Ⅲ~Ⅳ型患者资料,共72例(77足)。记录并比较两组患者的手术时间、术中透视次数、术中出血量、皮瓣愈合情况、住院时间、早期下地负重时间、骨折愈合时间、术后并发症发生情况,术前、术后即刻、术后1年时Bohler角、Gissane角、术后1年足功能(Maryland)评分、美国矫形外科足踝协会踝-后足评分(AOFAS)、足功能指数量表(FFI)、疼痛视觉模拟评分(VAS)。结果改良组手术平均时长、术后早期下地负重时间均短于传统组(P<0.05)。术中出血量、透视次数、平均住院时间、骨折愈合时间均无明显差异。改良组与传统组术后1年相关角度相比差异有统计学意义(P<0.05),表明在负重后,改良组关节面并未有明显塌陷。术后1年随访,改良组优良率、AOFAS评分、FFI指数均优于传统组,VAS评分较传统组更低(P<0.05)。结论改良跟骨锁定板治疗Sanders分型Ⅲ~Ⅳ型的跟骨骨折,可以实现良好的临床和放射学结果,且无严重并发症,有利于患者后足功能的恢复,优良率更高,有一定的临床推广价值。

跗骨窦小切口入路内固定术配合中医正骨手法治疗跟骨骨折的临床疗效评价

目的:研究跗骨窦小切口入路内固定术配合中医正骨手法治疗跟骨骨折的临床疗效。方法:以回顾性分析为法,观察对象为2018年1月至2022年6月清远市中医院的80例跟骨骨折患者,依据治疗方案不同分为两组,观察组在跗骨窦小切口入路内固定术的基础上配合中医正骨手法辅助治疗,对照组实施跗骨窦小切口入路内固定术。收集两组患者的一般资料及影像学参数,并对手术时间、术中出血量、住院时长、疼痛程度、跟骨参数、足踝功能以及并发症予以分析。结果:组间对比性别、年龄等资料,差异无统计学意义(P>0.05);术中出血量、住院时间观察组明显低于对照组(P<0.05),手术时长比较,差异无统计学意义(P>0.05);随着术后时间的延长,两组患者的VAS疼痛评分均下降,以观察组降低幅度更大,差异有统计学意义(P<0.05);两组术前Gissane角、Bohler角、Pitch角、足踝评分比较,差异无统计学意义(P>0.05);较术前,两组术后Gissane角、Bohler角、Pitch角均增大,足踝评分升高,差异有统计学意义(P<0.05);两组Gissane角、Bohler角、Pitch角、足踝评分手术前后差值比较,差异有统计学意义(P<0.05);观察组术后并发症发生率2.38%,与对照组的并发症发生率5.26%比较,差异无统计学意义(χ^(2)=1.065,P>0.05)。结论:跗骨窦小切口入路内固定术配合中医正骨手法治疗跟骨骨折患者临床疗效较好,能够配合手术进程,弥补不能充分暴露的缺点,达到良好复位的目的,并能缩短住院时间,减少术中出血量、降低疼痛程度,促进足部功能与骨折端解剖结构的恢复,且安全性较高。

经跗骨窦入路内固定治疗跟骨骨折的解剖学特征及临床疗效

目的探讨经跗骨窦入路内固定治疗跟骨骨折的解剖学特征及临床疗效。方法对来源于成人尸体的20个足部标本进行解剖学测量得到安全手术范围,在此范围内采用经跗骨窦入路内固定治疗32例跟骨骨折患者。记录B9hler角、Gissane角、跟骨宽度、跟骨高度及并发症发生情况。采用踝关节MaryLand评分及AOFAS踝-后足评分评价临床疗效。结果(1)解剖学测量得到经跗骨窦入路内固定治疗跟骨骨折时避免腓肠神经损伤的安全手术范围:水平方向为11~28(16.90±4.93)mm,垂直方向为12~25(17.55±4.51)mm,对角方向为28~56(43.60±8.44)mm。(2)患者均获得随访,时间12~22个月。术后无切口感染、神经损伤、内固定失效等并发症发生。骨折均愈合,时间12~18周。B9hler角、Gissane角、跟骨宽度、跟骨高度:术后3、6个月均明显优于术前(P<0.01);术后6个月与术后3个月比较差异均无统计学意义(P>0.05)。踝关节MaryLand评分、AOFAS踝-后足评分:术后3、6、12个月均高于术后1个月(P<0.05);术后6、12个月均高于术后3个月(P<0.05);术后12个月与术后6个月比较差异均无统计学意义(P>0.05)。结论在安全手术范围内经跗骨窦入路内固定治疗跟骨骨折,可有效显露跟骨关节面,利于骨折复位及钢板固定,并能减少软组织及神经损伤等并发症的发生。