股骨近端抗旋髓内钉与第三代Gamma钉治疗股骨转子间骨折的效果对比

目的:探讨股骨近端抗旋转髓内钉与第三代Gamma钉治疗股骨转子间骨折的临床疗效,为骨科手术提供可借鉴的资料。方法:2009年4月-2013年3月期间在我院接受治疗的40例股骨转子间骨折患者,随机分为两组。其中,PFNA组20例患者采用股骨近端抗旋转髓内钉质量,而Gamma 3组20例患者采用第三代Gamma钉治疗。观察并比较两组患者的手术时间、影像增强剂时间和失血量,术后评价复位质量和内置物位置,在随访中,记录术后并发症,包括股骨干骨折、切出、再次手术、肺炎、尿路感染、脑梗塞、心肌梗塞和褥疮性溃疡等。另外,用Parker-Palmer活动评分系统评价行走能力。结果:PFNA和Gamma 3组在手术时间、影响增强剂时间和失血量上没有差异(P0.05);Gamma 3组病例复位质量要好于PFNA组,差异显著且具有统计学意义(P0.05);两组在内置物位置、行走能力和术后并发症上没有显著差异(P0.05)。结论:PFNA与Gamma 3治疗股骨转子间骨折具有很好的安全性和有效性,但Gamma3可获得更好的复位质量,应进一步在临床推广。     

Femoral neck fracture after removal of the standard gamma interlocking nail: a cadaveric study to determine factors influencing the biomechanical properties of the proximal femur

We retrospectively analyzed 1334 patients who were implanted standard gamma interlocking nails^® (SGN) to stabilize trochanteric femoral fractures over the years 1992–1998. Reoperation to remove the nails was performed in 37 patients, in 9 of them purely because of pain. Three out of these 9 patients with removed SGN suffered femoral neck fractures in the early postoperative course after having been mobilized to full weight-bearing capacity. This complication was not observed with other implant systems and, considering the notoriously high complication rate of femoral neck fractures, severely reduces the value of the SGN concept per se. These findings in combination with other known shortcomings of SGNs prompted us to conduct an experimental study on the fracture force of excavated femurs addressing the hypothesis that the specific design of the SGN is responsible for the occurrence of fatigue fractures of the femoral neck. Eighteen matched pairs of fresh human cadaveric proximal femurs, which were treated by insertion and removal of (i) SGNs or (ii) dynamic hip screws^® (DHS) or (iii) by excavation in the absence of an implant, were subjected to incremental loading cycles and compared to the untreated contralateral femurs. Overall, the fracture force was found to be significantly lower among the treated than among the untreated bones. However, the fracture force required after removal of the DHS system was still significantly higher than for SGN or excavation alone. In this way, our findings demonstrate that removing relatively big implants such as SGN can cause serious complications such as femoral neck fractures. We therefore recommend to leave this type of device in place even after fracture healing except in cases of deep and chronic infection.     

PFNA和DHS治疗老年性股骨粗隆间骨折的临床对照研究

目的:探讨PFNA和DHS治疗老年性股骨粗隆间骨折的临床疗效.方法:回顾分析2010年3月至2011年6月间69例行手术治疗的老年性股骨粗隆间骨折的临床资料,其中股骨近端抗旋髓内钉(PFNA)37例(PFNA组),动力髋螺钉(DHS)32例(DHS组);比较两组平均手术时间、术中出血量、术后并发症、治疗费用、骨折愈合时间和髋关节功能.结果:PFNA组平均手术时间和术中出血量均低于DHS组(P＜0.05);术后并发症差别无统计学意义(P＞ 0.05);PFNA组治疗费用高于DHS组(P＜0.05);术后随访时间11-20个月,两组病例均临床愈合,PFNA组优良率高于DHS组(P＜0.05).结论:PFNA与DHS均是治疗老年性股骨粗隆间骨折的较好材料,PFNA更符合生物学特点,具有手术创伤小、固定牢靠、恢复好的优点,但治疗费用较高,临床应用可根据患者病情和经济状况选用.     

尖顶距在股骨近端抗旋转髓内钉治疗股骨近端骨折中的应用

目的:探讨尖顶距在股骨近端抗旋转髓内钉治疗股骨近端骨折临床效果中的作用和意义,为骨外科手术疗效的评价提供可借鉴的方法。方法:对2006年8月-2007年10月期间在我院接受PFNA治疗的32例股骨近端骨折患者的临床资料进行回顾性分析。根据AO/ASIF国际内固定研究学会标准对骨折进行分类,应用术中和术后即刻X光射线照片对骨折复位情况、远端锁定类型和股骨头内刀片位置进行记录。患者术后常规X光照片观察切出情况,用Oxford髋关节评分系统评价临床疗效。结果:研究期间共有37例PFNA植入,纳入本研究的共32例,27例获得随访。其中,3例切出(2例内侧穿孔和1例内侧塌陷)TAD小于20mm。4例植入相关股骨骨折,2例不愈合,1例复位失败。结论:PFNA是治疗股骨近端不稳定型骨折的有效装置。我们认为TAD应尽量20 mm或30 mm以避免股骨头穿透。     

髋关节后侧入路结合大粗隆截骨治疗PipkinⅣ型股骨头骨折

目的:探讨髋关节后侧入路结合大粗隆截骨治疗Pipkin IV型股骨头骨折的疗效。方法:回顾性分析我院2006年3月至2012年10月采用髋关节后侧入路结合大粗隆截骨治疗Pipkin IV型股骨头骨折患者共8例。其中男5例,女3例。结果:本组病例随访时间为18~58个月,平均36个月。按照采用Thompson-Epstein疗效评定标准,优:3例;良:3例;可:2例。结论:髋关节后侧入路结合大粗隆截骨治疗PipkinⅣ型股骨头骨折可获得充分的显露,并为股骨头的复位、固定提供极大方便,损伤相对较小,对股骨头血运影响小,效果良好。     

Hemiarthroplasty is an effective surgical method to manage unstable trochanteric fractures in elderly people

Trochanteric femoral fractures are a major problem in the elderly because of higher bone fragility due to osteoporosis. Numerous chronic illnesses, which usually affect the elderly, aggravate and complicate their surgical treatment. Trochanteric femoral fractures results in high morbidity and mortality in elderly patients. The aim of our study is to evaluate the effectiveness of hemiarthroplasty in the treatment of unstable trochanteric femoral fractures in elderly patients. Between 2000 and 2005, 50 patients with unstable trochanteric femoral fractures (41 women) aged 75 to 92 years (mean 86 years) underwent cemented hemiarthroplasty. The surgical procedure was performed within first 48 hours after the fracture (out of which 14 in the first 12 hours, 27 in the first 24 hours and 9 in the first 48 hours), with minimal blood loss. Hemiarthroplasty was indicated in patients where stability was important to allow early mobilization. In forty patients (80%) early ambulation with full weight bearing was achieved during the short period of hospitalization (9-14 days). Given that the affected population is predominantly the elderly, who are less mobile and demanding and thus put less strain on the endoprosthesis, we believe that this kind of treatment is the treatment of choice for unstable trochanteric femoral fractures in these patients. This assumption is corroborated by the fact that we did not have any endoprosthesis luxation, apparent acetabular protrusion or instability during the mean follow up period of 15 months (range 12-18 months).     

动力髋螺钉结合转子稳定钢板治疗不稳定性股骨转子间骨折

目的：探讨应用动力髋螺钉结合转子稳定钢板治疗不稳定性股骨转子间骨折的疗效。方法：我院自2007年1月-2009年12月采用动力髋螺钉结合转子稳定钢板治疗不稳定性股骨转子间骨折共22例,统计骨折类型、手术时间、术中出血量、术后并发症、住院天数、骨折愈合及功能恢复情况,评价治疗效果。结果：平均随访16个月,所有病人骨折全部愈合,术后半年根据Harris髋关节功能评定,优良率90.9%。结论：正确的手术操作和恰当的术后康复锻炼,应用DHS结合TSP,治疗A2.2、A2.3型不稳定性骨折及外侧壁薄弱的经大转子骨折的转子间骨折,可以取得良好的治疗效果。     

股骨近端解剖锁定钢板与股骨近端防旋髓内钉治疗不稳定型股骨转子间骨折的比较研究

目的:探讨股骨近端解剖锁定钢板(PFLP)与股骨近端防旋髓内钉(PFNA)治疗不稳定型股骨转子间骨折的疗效。方法:选取我院2013年6月至2016年3月期间收治的160例不稳定型股骨转子间骨折患者为研究对象,采用乱数表法分为观察组、对照组,各80例。对照组采用PFLP治疗,观察组患者采用PFNA治疗。统计分析两组的手术及术后相关指标以及术后3个月、6个月、12个月的髋关节功能Harris评分,比较两组的术后并发症。结果:观察组患者的手术时间、切口长度短于对照组,术中出血量、术中输血量、术后引流量均少于对照组(P0.05);观察组患者术后患侧负重时间、住院时间均短于对照组(P0.05);观察组患者骨折愈合时间短于对照组,但无统计学差异(P0.05);术后3个月、6个月,观察组患者髋关节功能Harris评分均高于对照组(P0.05);术后12个月,观察组患者髋关节功能Harris评分高于对照组,但无统计学差异(P0.05);两组患者并发症发生率比较无统计学差异(P0.05)。结论:PFNA与PFLP均能够有效治疗不稳定型股骨转子间骨折,但PFNA治疗方式在近期疗效中的作用优于PFLP,且患者髋关节功能恢复更快。     

动力髋螺钉与股骨近端髓内钉治疗老年股骨近端骨折的临床疗效比较

目的:比较动力髋螺钉与股骨近端髓内钉治疗老年股骨近端骨折的临床疗效和安全性。方法:收集我院收治的老年股骨近端骨折患者64例,随机分为DHS组和PFN组,每组各32例。DHS组患者给予动力髋螺钉的固定方式,PFN组给予股骨近端髓内钉的固定方式。手术后对患者的手术切口长度、术中出血量、手术时间、骨折愈合时间、术后并发症以及患者临床疗效进行检测并比较。结果:与治疗前相比,两组患者治疗后的Harris评分均显著下降(P0.05);与DHS组相比,PFN组患者的手术切口长度、术中出血量、手术时间、骨折愈合时间、术后并发症的发生率以及Harris评分均较低(P0.05)。结论:股骨近端髓内钉的固定治疗老年股骨近端骨折的临床疗效较好,安全性更高。     

对侧皮质锁定螺钉与锁定螺钉治疗股骨远端骨折疗效比较

目的:比较对侧皮质锁定螺钉与锁定螺钉治疗股骨远端骨折的临床疗效。方法:回顾性分析自2013年5月至2016年8月诊治的52例股骨远端骨折患者,采用对侧皮质锁定螺钉+NCB接骨板内固定治疗26例(A组:对侧皮质锁定组),采用锁定螺钉+NCB接骨板内固定治疗26例(B组:锁定螺钉组)。记录两组手术出血量和手术时间、切口长度、内固定治疗后骨折愈合时间、内固定治疗后完全负重时间、内固定治疗后并发症发生率等,在每个随访节点对每位患者进行患肢的正侧位X线平片检查,末次随访时对患肢进行膝关节功能评分,采用美国特种外科医院膝关节评分标准评定患肢功能。骨折愈合的定义为活动时骨折处无痛且在骨折正侧位X线平片上可见到断端骨皮质骨痂连接。术后并发症包括:关节僵硬、内固定断裂、骨不连以及感染等。结果:本研究52例骨折均获得至少12个月的随访。两组在手术相关指标及切口愈合等方面均无明显差异(P均0.05)。在骨折愈合以及完全负重时间方面,A组均显著短于B组(P均0.05)。末次随访时52例患者患肢膝关节功能:A组:优18例,良5例,差4例,优良率88.5%;B组:优15例,良6例,中4例,差1例,优良率80.8%。两组对比A组优良率显著高于B组(P0.05)。两组并发症对比无明显差异:A组发生骨不连2例,骨折内固定断裂2例。B组发生骨不连3例,畸形愈合2例。结论:与传统锁定螺钉相比,对侧皮质锁定螺钉在骨折愈合时间、完全负重时间、术后患肢功能优良率方面具有优势,但在并发症发生率方面没有明显差异。对侧皮质锁定螺钉的治疗指征及自身强度还有待大样本、多中心的临床研究进一步明确。     

老年粗隆部骨折多种内固定方式的选择

目的:探讨老年人股骨粗隆部骨折的不同内固定术式选择原则。方法:对78例老年人(平均年龄76岁)股骨粗隆部骨折根据Evans分型及健康状况应用不同的内固定治疗,其中动力髋螺钉(DHS)14例、Gamma钉22例、股骨近端防旋转髓内钉(PFNA)42例。结果:78例平均随访16.5个月,按Harris评分标准,优良率84.6%。结论:根据Evans分型及健康状况选择不同的内固定手术方式均可以获得较好的手术效果,而PFNA具有最短的手术时间和最少的失血量,因此更适合高龄的患者。     

股骨近端防旋髓内钉内固定治疗股骨粗隆间骨折的疗效及术后隐性失血的影响因素分析

目的:观察股骨粗隆间骨折患者经股骨近端防旋髓内钉(PFNA)内固定治疗后的效果,并分析术后隐性失血的影响因素。方法:回顾性选取2018年3月~2020年7月期间来我院就诊的220例股骨粗隆间骨折患者的资料,患者经PFNA内固定治疗,观察其治疗效果及并发症发生情况,记录所有患者术后隐性失血情况,单因素和多元线性回归分析术后隐性失血的影响因素。结果:220例患者均成功完成了手术,按照Harris髋关节功能评分标准,优良率为82.73%(182/220),隐性失血量为(787.07±58.92)mL,并发症发生率为4.09%(9/220)。单因素分析结果显示,股骨粗隆间骨折患者经PFNA内固定治疗后,术后隐性失血的发生与年龄、骨折Evans分型、高血压病、糖尿病、术前抗凝、受伤至手术时间有关(P<0.05),而与性别、体质量指数、手术时间、术后输血无关(P>0.05)。多元线性回归结果显示,年龄>75岁、骨折Evans分型为Ⅲ~Ⅳ型、存在高血压病、存在糖尿病、术前抗凝、受伤至手术时间>5 d是引起术后隐性失血的危险因素(P<0.05)。结论:PFNA内固定治疗股骨粗隆间骨折患者,疗效较好,术后并发症较少,同时患者均存在不同程度的隐性失血,隐性失血的量与糖尿病、年龄、高血压病、骨折Evans分型、术前抗凝、受伤至手术时间等因素密切相关。     

动力髋螺钉与股骨近端髓内钉内固定治疗股骨粗隆间骨折患者的疗效及安全性和关节功能对比观察

目的:比较动力髋螺钉(DHS)与股骨近端髓内钉(PFNA)内固定治疗股骨粗隆间骨折患者的疗效及安全性和关节功能。方法:选取滁州市第一人民医院于2013年3月～2018年4月期间收治的160例股骨粗隆间骨折患者,根据内固定方式的不同将患者分为DHS组(n=80,采用DHS内固定)和PFNA组(n=80,采用PFNA内固定),比较两组临床疗效,采用髋关节功能Harris评分评价所有患者关节功能恢复情况,比较两组患者术前及术后相关指标,并观察患者术后并发症发生情况。结果:PFNA组患者临床总有效率为90.00%,高于DHS组患者的68.75%(P0.05)。两组患者Harris评分的优良率比较差异无统计学意义(P0.05)。PFNA组患者手术时间、卧床时间、骨折愈合时间、切口长度均短于DHS组(P0.05),术中出血量、术后引流量均少于DHS组(P0.05)。两组患者术后并发症总发生率比较无统计学差异(P0.05)。结论:DHS与PFNA内固定治疗股骨粗隆间骨折在术后关节功能恢复、安全性方面效果相当,但与DHS内固定治疗比较,PFNA内固定治疗的临床疗效更佳,手术时间更短,出血量更少,患者术后恢复更快,是治疗股骨粗隆间骨折较理想的手术方式。     

近端膨胀髓内钉与抗旋髓内钉治疗老年股骨转子间骨折的临床疗效分析

目的:探究近端膨胀髓内钉与近端螺旋刀片抗旋髓内钉治疗老年股骨转子间骨折疗效及躁动发生率比较。方法:病例来源为2012年5月至2013年10月收入我院的老年股骨转子间骨折患者60例,采用随机数字表随机分为两组,膨胀钉组30例,采用近端膨胀髓内钉的手术方法,PFNA组30例,采用近端螺旋刀片抗旋髓内钉的手术方法。手术结束后,对两组患者进行X射线片、手术时间及出血量、髋关节功能的比较,同时对比躁动发生率。结果:X线检查结果显示两组患者经手术后骨折处均复位良好,无并发症及内固定物的脱落及松动,两组比较无显著差异(P0.05);与PFNA组相比,膨胀组患者的手术时间及出血量明显降低,差异具有统计学意义(P0.05);两组患者术后3个月、6个月的Harris评分显示,与PFNA组相比,膨胀钉组的优良率明显升高,髋关节优于PFNA组,差异具有统计学意义(P0.05);膨胀钉组患者躁动率为10.00%低于PFNA组患者躁动率为33.33%,具有统计学意义(P0.05)。结论:可膨胀髓内钉具有手术时间较短、出血量少,更利于骨折的愈合,且躁动发生率较低,对股骨转子间骨折的疗效优于较近端螺旋刀片抗旋髓内钉,对临床有指导意义,值得临床推广。     

近端防旋髓内钉与近端锁定钢板治疗老年股骨转子间不稳定骨折的疗效对比分析

目的:分析对比股骨近端防旋髓内钉(PFNA)与股骨近端锁定钢板(PFLP)治疗老年股骨转子间不稳定骨折的临床疗效。方法:回顾性分析我院骨外科2009年4月至2013年4月收治的老年股骨转子间不稳定骨折患者90例,根据患者手术方式的不同,将其分为PFNA组及PFLP组,各45例。对比分析两组患者术中出血量、手术持续时间及骨折愈合时间术后髋关节功能及内固定并发症情况。结果:PFNA组髋关节功能Harris评分优良率91.11%明显高于PFLP组的71.11%(P0.05);PFNA组比PFLP组骨折愈合时间短、内固定并发症少,比较差异有统计学意义(P0.05)。结论:应用PFNA治疗老年股骨转子间不稳定骨折患者具有骨折愈合时间短、髋关节功能恢复好、术后内固定并发症少的特点,治疗效果较PFLP更满意。     

股骨近端防旋髓内钉与人工股骨头置换术治疗老年不稳定股骨转子间骨折的比较研究

目的:比较股骨近端防旋髓内钉(PFNA)与人工股骨头置换术(FHR)治疗老年不稳定股骨转子间骨折(UFIF)的疗效。方法:选择2015年9月到2017年6月期间在我院接受手术治疗的老年UFIF患者156例进行研究。根据手术方案的不同将患者分成观察组(n=78)及对照组(n=78),其中观察组给予FHR术式治疗,对照组给予PFNA术式治疗,随访6个月,比较两组患者的疗效、并发症以及手术时间、切口长度、术中出血量、下床时间等手术指标,并比较两组患者术前、术后1个月、术后3个月、术后6个月的视觉模拟量表(VAS)评分。结果:观察组的优良率为92.31%,与对照组的88.46%相比,差异无统计学意义(P0.05)。观察组的下床时间明显少于对照组,但手术时间、切口长度以及术中出血量明显大于对照组(P0.05)。观察组术后输血的发生率明显高于对照组(P0.05),而两组患者的内植物松动、骨折不愈合以及下肢深静脉血栓的发生率比较差异无统计学意义(P0.05)。两组患者术后1个月、术后3个月、术后6个月的VAS评分均低于术前,且随着时间的推移,VAS评分呈逐渐降低的趋势,差异有统计学意义(P0.05)。结论:对于老年UFIF患者而言,PFNA术式及FHR术式的治疗效果及安全性均较好,临床上可根据患者的实际骨折程度选择合适的术式。     

Intraoperative intravascular volume optimisation and length of hospital stay after repair of proximal femoral fracture: randomised controlled trial.

OBJECTIVES: To assess whether intraoperative intravascular volume optimisation improves outcome and shortens hospital stay after repair of proximal femoral fracture. DESIGN: Prospective, randomised controlled trial comparing conventional intraoperative fluid management with repeated colloid fluid challenges monitored by oesophageal Doppler ultrasonography to maintain maximal stroke volume throughout the operative period. SETTING: Teaching hospital, London. SUBJECTS: 40 patients undergoing repair of proximal femoral fracture under general anaesthesia. INTERVENTIONS: Patients were randomly assigned to receive either conventional intraoperative fluid management (control patients) or additional repeated colloid fluid challenges with oesophageal Doppler ultrasonography used to maintain maximal stroke volume throughout the operative period (protocol patients). MAIN OUTCOME MEASURES: Time declared medically fit for hospital discharge, duration of hospital stay (in acute bed; in acute plus long stay bed), mortality, perioperative haemodynamic changes. RESULTS: Intraoperative intravascular fluid loading produced significantly greater changes in stroke volume (median 15 ml (95% confidence interval 10 to 21 ml)) and cardiac output (1.2 l/min (0.1 to 2.3 l/min)) than in the conventionally managed group (-5 ml (-10 to 1 ml) and -0.4 l/min (-1.0 to 0.2 l/min)) (P < 0.001 and P < 0.05, respectively). One protocol patient and two control patients died in hospital. In the survivors, postoperative recovery was significantly faster in the protocol patients, with shorter times to being declared medically fit for discharge (median 10 (9 to 15) days v 15 (11 to 40) days, P < 0.05) and a 39% reduction in hospital stay (12 (8 to 13) days v 20 (10 to 61) days, P < 0.05). CONCLUSIONS: Proximal femoral fracture repair constitutes surgery in a high risk population. Intraoperative intravascular volume loading to optimal stroke volume resulted in a more rapid postoperative recovery and a significantly reduced hospital stay.     

逆行可膨胀髓内钉与锁定钢板治疗股骨远端骨折的疗效比较

目的:探讨比较运用逆行可膨胀髓内钉与股骨远端锁定钢板治疗股骨远端33A、33C1型骨折的疗效。方法:对2013年3月至2015年6月收治并符合纳入标准的43例股骨远端33A、33C1型骨折患者进行回顾性研究。按照不同的手术固定方式分为逆行可膨胀髓内钉组(n=18)和锁定钢板组(n=25),记录并比较两组手术时间、失血量、愈合时间及功能结果、术中及术后并发症。结果:所有骨折最终都获得愈合;逆行可膨胀髓内钉组在手术时间及失血量上都显著低于锁定钢板组,两组在愈合时间及功能评定方面无明显差异;5例开放性骨折的患者中1例出现浅表伤口感染,1例患者延迟愈合。结论:股骨远端逆行可膨胀髓内钉在获得与锁定钢板相当的骨折愈合时间及患肢功能的情况下,具有操作简单、手术时间短、失血量少等特点,对于股骨远端33A、33C1型骨折来说是一个较好的选择。     

微创经皮LCP 接骨术治疗老年股骨近端粉碎骨折

目的:本研究通过观察微创锁定钢板接骨术治疗老年股骨近端粉碎骨折临床效果,旨在找出最佳治疗方式。方法:自2007年12月～2010年03月,应用股骨近端锁定加压钢板治疗老年股骨近端粉碎骨折23例。记录术中出血量、手术时间,术后并发症、骨折愈合时间及最后一次随访时功能恢复情况。结果:骨折临床愈合时间为12～28周,平均16周。除1例患者髋内翻畸形,1例锁定加压钢板断裂外,其他患者均达到骨性愈合。结论:股骨近端锁定钢板具有创伤小、固定可靠、骨折愈合快、功能恢复满意的特点,尤其适用于老年股骨近端粉碎骨折。     

Percutaneous osseointegrated prostheses for amputees: Limb compensation in a 12-month ovine model

Percutaneous osseointegrated prostheses are being investigated as an alternative strategy to attach prosthetic limbs to patients. Although the use of these implants has shown to be promising in clinical trials, the ability to maintain a skin seal around an osseointegrated implant interface is a major challenge to prevent superficial and deep periprosthetic infections. The specific aim of this study was to establish a translational load-bearing ovine model to assess postoperative limb compensation and gait symmetry following a percutaneous osseointegrated implant. We tested the following hypotheses: (1) the animals would return to pre-amputation limb loads within 12-months; (2) the animals would return to a symmetrical gait pattern (stride length and time in stance) within 12-months. The results demonstrated that one month following surgery, the sheep loaded their amputated limb to a mean value of nearly 80% of their pre-amputation loading condition; by 12-months, this mean had dropped to approximately 74%. There was no statistical differences between the symmetry of the amputated forelimb and the contralateral forelimb at any time point for the animals stride length or the time spent in the stance phase of their gait cycle. Thus, the data showed that while the animals maintained symmetric gait patterns, they did not return to full weight-bearing after 12-months. The results of this study showed that a large animal load-bearing model had a symmetric gait and was weight bearing for up to 12 months. While the current investigation utilizes an ovine model, the data show that osseointegrated implant technology with postoperative follow-up can help our human patients return to symmetric gait and maintain an active lifestyle, leading to an improvement in their quality of life following amputation.