寰枢椎脱位手术后翻修的原因及策略

目的 :分析寰枢椎脱位手术后翻修的原因,探讨其策略。方法 :回顾性分析15例寰枢椎脱位手术后翻修患者,男11例,女4例,翻修时年龄15~68岁(46.60±14.95岁);两次手术相隔2~120个月(28.73±38.59个月)。根据影像资料及手术探查情况分析翻修原因。翻修手术中均行8~10kg颅骨牵引及后方松解;后方结构完整患者行后路固定,根据松解后复位情况决定是否选择前路松解术;1例后路减压患者行前路松解复位固定术。导航模板辅助置入寰枢椎螺钉;自体髂骨松质骨颗粒植骨。随访观察寰枢椎复位、螺钉位置、植骨融合及手术疗效。结果:翻修原因,减压或复位不足10例,内固定失败3例,植骨未融合3例(含植骨未融合致内固定失败1例)。15例翻修手术中,14例为后路固定手术,1例为前路固定手术。通过术中颅骨牵引及充分松解,13例获得解剖复位;2例因广泛骨性融合,无法牵引复位,切除齿状突后彻底减压。导航模板辅助下共置入寰枢椎螺钉42枚,均一次性置入;置钉准确率97.6%。随访3~36个月(16.0±4.2个月),所有病例骨性融合,融合时间为3~6个月(3.7±0.5个月);末次随访JOA评分为13.8±3.1分(11~16分),较术前评分8.1±2.3分(6~11分)明显提高,改善率为(64.0±21.2)%(45.4%~88.8%)。结论:寰枢椎脱位手术后翻修的原因为减压或复位不足、内固定失败以及植骨未融合。充分的术中松解、8~10kg的颅骨牵引、恰当的骨质切除减压有利于翻修术中寰枢椎的复位,导航模板辅助有利于提高置钉准确性。     

寰枢椎脱位翻修手术的临床疗效观察

目的 :探讨一期前路经口咽松解并后路复位固定融合术对寰枢椎脱位手术治疗失败病例翻修的手术要点及疗效。方法:2001年10月~2011年10月对29例寰枢椎脱位手术治疗失败病例行翻修手术,其中26例获得随访,男12例,女14例。初次手术时年龄4~56岁,平均33.5岁,齿状突骨折不愈合6例,齿状突发育畸形6例,横韧带断裂2例,先天性寰枕融合12例。翻修手术时年龄12~60岁,平均37.2岁。两次手术相隔11~158个月,平均44.2个月。8例初次手术后未复位,18例复位后因内固定失败再次脱位,脑干脊髓角平均101.8°。患者均有枕颈部持续性疼痛,其中19例伴脊髓神经功能障碍,JOA评分平均8.5分。均行一期前路经口咽松解、后路复位减压、寰枢椎或枕颈固定融合术,其中12例行C1-C2融合,6例C0-C2融合,3例C0-C3融合,3例C0-C4融合,2例C1-C4融合。随访患者临床疗效并进行影像学评估。结果:手术均顺利完成,手术时间210~340min,平均290min;失血量500~1100ml,平均700ml。术中未发生血管、神经和脊髓等损伤,术后无咽壁和椎管内感染发生。19例(73.1%)获得完全复位,7例不完全复位;脑干脊髓角恢复至平均143.0°,其中11例达到正常,15例小于正常。随访18～90个月,平均45个月,随访期间未见内固定松动表现,植骨均获得骨性融合;临床症状明显改善,19例伴有脊髓神经功能障碍患者末次随访时JOA评分平均12.6分。按Macnab疗效评估标准评定:优10例,良6例,无改善3例。结论:一期前路经口咽松解、后路复位减压、寰枢或枕颈固定融合术是一种具有较好临床疗效的寰枢椎脱位翻修术式。     

经口咽前路寰枢椎复位钛板手术在寰枢椎内固定翻修手术中的应用

目的探讨经口咽前路寰枢椎复位钛板(transoral atlantoaxial reduction plate,TARP)手术在寰枢椎内固定翻修手术中的应用价值。方法2005年4月~2007年5月采用自行设计的TARP治疗10例寰枢椎初次手术失败需要再次手术的患者。其中包括寰枢椎脱位,行后路Apofix内固定术后再脱位3例;颅底凹陷症伴寰枢椎脱位,行后路减压枕颈内固定术后寰枢关节仍呈脱位状态且症状加重2例;先天性齿突不连伴寰枢关节脱位,行后路Brooks钛缆寰枢椎内固定术后再脱位且症状加重2例;先天性齿突发育不良伴寰枢关节脱位,行颈前路C1~3 Axis钛板内固定术后未复位且症状加重1例;陈旧性齿突骨折伴寰枢关节脱位行TARP手术后再脱位1例;颅底畸形、C1,2脱位、四肢瘫痪伴呼吸困难,行TARP手术后再脱位1例。10例翻修手术分别为:7例先行后路取出枕颈内固定器及寰枢内固定器,同期行TARP手术;1例行经口前路取出C1~3 Axis钛板,同时行TARP手术;2例行经口前路取出松动的TARP,其中1例更换成比之前小1个型号的TARP和直径比之前粗0.5mm的翻修螺钉予以重新固定,另1例行C2次全切除,更换特制的加长TARP固定于C1侧块和C3椎体。观察翻修术前、术后即时复位及随访时症状、体征、影像学及神经功能恢复情况。结果随访时间为2~25个月,平均18个月。10例寰枢关节脱位均获得解剖复位或接近解剖复位。TARP固定良好,无松动。9例获得骨性融合,1例随访时间偏短,暂无法确定融合情况。MRI示:寰枢节段椎管矢径恢复正常,颈髓获得充分减压,脊髓减压改善率达85%~100%(平均96%),但有3例寰枢节段脊髓明显萎缩,呈高信号改变。7例患者的神经功能获得不同程度的恢复。1例恢复自主呼吸,四肢运动无明显恢复。本组无神经血管损伤和术后再脱位并发症。结论TARP手术对于寰枢椎前后路内固定手术失败的翻修是一个理想的选择。     

寰枢椎椎板减压联合寰枢椎椎弓根钉术中复位固定融合术治疗新鲜Ⅱ型齿状突骨折并颈髓损伤

目的总结应用经后路寰枢椎椎板减压联合寰枢椎椎弓根钉内固定,术中提拉复位固定颗粒状植骨融合术治疗新鲜Ⅱ型齿状突骨折并颈髓损伤的临床疗效。方法自2010—11—2013-05对7例新鲜Ⅱ型齿状突骨折合并颈髓损伤应用经后路寰枢椎椎板减压联合寰枢椎椎弓根钉内固定。术中提拉复位固定颗粒状植骨融合术进行治疗,随访观察患者临床症状和神经功能改善情况,影像学检查寰枢椎复位及植骨融合情况。结果患者均顺利完成手术,术中均无血管及脊髓神经的损伤。所有患者脊髓神经功能恢复较理想,随访期间未发现内固定松动、断裂以及骨折不愈合。结论后路寰枢椎椎板减压联合寰枢椎椎弓根钉内固定系统术中提拉复位固定颗粒状植骨融合是治疗新鲜Ⅱ型齿状突骨折并颈髓损伤比较理想的术式选择。     

寰枢椎不稳及脱位的外科治疗

目的总结和分析寰枢椎不稳及脱位的外科治疗结果，并对其手术方法的选择进行探讨。方法自1998年1月至2004年5月对15例寰枢椎不稳及13例寰枢椎脱位患进行手术治疗，15例寰枢椎不稳均行后路寰枢椎植骨融合内固定术；13例寰枢椎脱位病例中，8例经颅骨牵引寰椎完全或大部分复位，系采用后路寰枢椎植骨融合内固定术，5例牵引后不能复位，行寰椎后弓切除减压枕颈融合术。结果1例寰枢椎脱位病例术后1周死亡，1例寰枢椎脱位病例术后复发，给予颅骨牵引复位后头颈胸石膏外固定3个月，其余病例随访3～24个月，所有病例枕颈部疼痛症状减轻或消失，四肢及躯体感觉恢复接近正常，肌力及肌张力明显改善，寰枢椎及枕颈部植骨在半年左右均达骨性融合，未出现内固定物断裂、脱落。结论术前应熟悉寰枢椎不稳及脱位的各自影像特点，并对其解剖特点、发生机制及其临床特点认识清楚，正确地选择手术方法，术中仔细操作，便能达到满意的治疗效果。     

寰枢椎脱位后路螺钉固定方法的临床选择

目的 探讨寰枢椎脱位后路钉棒固定术中寰椎螺钉和枢椎螺钉固定方法 的临床选择.方法 对2002 年11 月至2011 年12 月广州军区广州总医院收治的228 例可复性和23 例难复性寰枢椎脱位患者,术前进行置钉可行性和复位可能性评估,针对性地选择寰椎和枢椎的后路螺钉固定方法,进行寰枢椎后路钉棒固定治疗.结果 251 例患者均行钉棒固定并获得满意复位.寰椎螺钉固定采用椎弓根螺钉403 枚、部分经椎弓根螺钉77 枚、侧块螺钉22 枚;枢椎螺钉固定采用椎弓根螺钉437 枚、椎板螺钉56 枚、侧块螺钉9 枚.术中未发生椎动脉、脊髓损伤.237 例患者获得随访,随访时间4～38 个月,平均随访时间13 个月.230 例患者获骨性融合;6例为纤维愈合,动力位片（均随访2 年以上）未见复发脱位;另1 例为假关节未融合并双侧枢椎椎弓根螺钉松动,行后路翻修手术治愈.结论 根据寰枢椎脱位的复位难易程度和个体解剖特点灵活选择寰椎和枢椎不同的后路螺钉固定方法,扩大了寰枢椎后路钉棒固定技术的适用范围,提高了手术安全性和成功率.     

寰枢椎融合失败的原因探讨及其翻修术

目的：探讨寰枢椎融合失败的原因及其翻修方法。方法：对17例寰枢椎融合失败病例的影像学资料、同定融合方法、手术技术、病理因素、用药情况和冉手术及其结果进行分析，寻找导致融合失败的原因，11例再次行枕颈融合术，4例行Magerl螺钉同定融合，1例行Gallie Apofix同定融合，1例行Magerl Gallie固定融合．结果：融合失败的原因主要有手术适应证选择不当、手术技术不佳、术前使用抗炎药等。翻修术后17例患者均获得随访，时间3～28个月(8．4个月)。再次手术后13例3个月骨性融合，2例5个月骨性融合，1例6，5个月骨性融合，1例融合失败。结论：寰枢椎融合手术适应证的选择是融合成败的关键，内置物类型的选择和手术技术与固定失败和骨不愈合密切相关，植骨床的准备和移植骨的紧密接触在骨融合中也起到重要作用．代谢、类同醇和非甾体类抗炎药的使用是导致融合失败的另一因素。     

难复型寰枢椎脱位的手术治疗

目的探讨后路寰枢椎弓根钉棒系统在难复型寰枢椎脱位的临床应用。方法 18例难复型寰枢椎脱位患者,采用后路寰枢椎弓根钉棒系统,进行寰枢椎部分撑开后提拉复位,固定及植骨融合,其中单纯固定融合14例,加行颈椎管成压术者4例。结果本组平均手术时间2.8(1.8～3.6)h,平均出血量380(150～680)ml,均无术中、术后并发症,无脊髓损伤症状加重。18例患者获得6月～3年随访,获得良好寰枢椎骨性融合,钉棒系统内固定牢固,无松动;寰枢椎保持复位位置;术后脊髓功能(JOA17分法)改善率82.3%,其中优12例,良4例,有效2例。结论经后路寰枢椎弓根钉棒系统,对寰枢椎进行部分撑开后提拉复位,一次完成难复型寰枢椎脱位的复位、固定和融合,是治疗难复型寰枢椎脱位较理想的手术方法。     

寰枢椎脱位术后翻修的手术策略分析

【摘要】 目的：分析寰枢椎脱位（atlanto-axial dislocation,AAD）手术后翻修的手术策略。方法：回顾性分析2016年1月~2019年8月在我院行寰枢椎翻修手术的12例患者。其中男3例,女9例,翻修时年龄7~62岁[45.5（34.25,52.50）岁]。初次手术距翻修手术间隔3~360个月[30（5,93）个月]。翻修术中有内固定首先进行内固定及植骨取出,根据1/6体重牵引情况评估是否行前路松解术;根据术前影像结合术中探查,个性化选择原位钉道-增粗增长螺钉、更换螺钉钉道、延长固定节段增加整体内固定强度,选择寰枢侧块关节松解植骨增加植骨融合。翻修后随访12~50个月[24.0（17.25,34.00）个月]。术后3d及末次随访时测量寰齿间距（atlantodental interval,ADI）、枢椎斜坡角（clivus-axial angle,CAA）、延髓脊髓角（cervico-medullary angle,CMA）评价寰枢椎复位情况,日本骨科学会（Japanese Orthopaedic Association,JOA）评分评价神经功能恢复情况;术后3d、3个月、6个月、12个月及末次随访行CT检查评价植骨融合情况。结果：12例翻修手术中,8例先进行原内固定及植骨取出,根据牵引情况,4例行前路松解联合后路复位固定融合术,8例行后路复位固定融合术。其中枕骨螺钉翻修4例,均更换螺钉钉道;C1螺钉翻修4例,2例选择增粗、增长螺钉固定,2例选择更换螺钉钉道;C2螺钉翻修8例,5例选择增粗、增长螺钉固定,3例选择更换螺钉钉道;延长固定节段3例;12例患者均进行寰枢侧块植骨。所有患者翻修术后均获得解剖复位,术后3d及末次随访ADI均较术前明显减少（P<0.05）,CCA、CMA较术前明显增加（P<0.05）。所有患者术后3d及末次随访时的JOA评分均较术前明显改善;所有病例骨性融合,融合率100%,融合时间为3~7个月[3.5（3.0,6.0）个月]。结论：前路松解术适用于拆除初次内固定后大重量牵引下寰枢椎仍未复位的患者。在进行后路翻修手术时,枕骨螺钉需更换钉道以维持内固定牢固,更换更粗、更长螺钉,更换螺钉钉道适用于C1、C2螺钉,延长固定节段适用于C1或C2无法置钉的患者。寰枢侧块关节植骨适用于所有寰枢椎翻修手术患者。     

SSE寰枢椎挂钩内固定治疗寰枢椎不稳

目的探讨SSE寰枢椎挂钩在治疗寰枢椎不稳中的应用。方法总结分析自2003年6月～2005年5月收治的10例寰枢椎不稳患者的临床资料。所有患者均行颈后路复位减压植骨融合SSE寰枢椎挂钩内固定术,术后复查颈椎动力位X线片、CT及CT三维重建,并结合患者恢复情况,综合评价SSE寰枢椎挂钩在治疗寰枢椎不稳中的应用。结果10例患者均获随访,随访2～18个月,平均11.5个月。术前症状消失或明显改善,无脱钩、内固定断裂等内固定物失败的现象。影像学资料显示:SSE寰枢椎挂钩位置良好,无挂钩松动、移位,无寰枢椎不稳复发等情况。结论SSE寰枢椎挂钩为治疗寰枢椎不稳的一种新型内植物,其固定强度更大、固定效果更可靠,手术操作简单,为寰枢椎不稳的治疗提供了一种新的选择。     

Isolated revision of failed metal-backed patellar components: outcome with minimum 4-year follow-up

Several reports document high failure rates of metal-backed patellar components, but few report the outcome of revising these components to all-polyethylene, cemented implants. At a mean 87.2-month follow-up, we describe a series of 36 patients (40 knees) who underwent isolated metal-backed patellar revision to a cemented, all-polyethylene patellar component. After the patellar revision, 5 patients (6 knees) underwent additional surgery, but no patellar components required revision. The additional surgeries were performed at an average of 77.6 months after patellar revision and included 3 tibial insert exchanges for polyethylene wear, 2 revisions of femoral and tibial components for osteolysis, and 1 realignment procedure for recurrent subluxation of the patella. We conclude that revision of a failed metal-backed patellar component to a cemented, all-polyethylene patella is a durable, successful procedure.     

Treatment of Failed Allograft Prosthesis Composites Used for Hip Arthroplasty in the Setting of Severe Proximal Femoral Bone Defects

This study assessed failures of allograft prosthesis composites (APC) and revisions with a new APC. Twenty-one patients with failed APC’s after revision hip arthroplasty with severe proximal femoral bone loss underwent revision with a new APC. Causes of failure were aseptic loosening (18 patients), infection (3 patients). Of these 21 APC revisions, two patients failed (after 60, 156 months). The 5 and 10 year survival rates were 83.5% (95% CI, 79–100%, number at risk 12 and 6 accordingly). In addition, two patients had non-union at the host-allograft bone junction and were augmented with bone autograft and plate. These results suggest that failed APCs may be revised to a new APC with a predictable outcome.     

Is a Higher Number of Total Hip and Knee Arthroplasty Revisions Associated With Increased Mortality?

BackgroundIt remains uncertain whether patients who undergo numerous total hip arthroplasty (THA) and/or knee arthroplasty (TKA) revisions exhibit decreased survival. Therefore, we sought to determine if the number of revisions per patient was a mortality predictor.MethodsWe retrospectively reviewed 978 consecutive THA and TKA revision patients from a single institution (from January 5, 2015-November 10, 2020). Dates of first-revision or single revision during study period and of latest follow-up or death were collected, and mortality was assessed. Number of revisions per patient and demographics corresponding to first revision or single revision were determined. Kaplan-Meier, univariate, and multivariate Cox-regressions were utilized to determine mortality predictors. The mean follow-up was 893 days (range, 3-2,658).ResultsMortality rates were 5.5% for the entire series, 5.0% among patients who only underwent TKA revision(s), 5.4% for only THA revision(s), and 17.2% for patients who underwent TKA and THA revisions (P = .019). In univariate Cox-regression, number of revisions per patient was not predictive of mortality in any of the groups analyzed. Age, body mass index (BMI), and American Society of Anesthesiologists (ASA) were significant mortality predictors in the entire series. Every 1 year of age increase significantly elevated expected death by 5.6% while per unit increase in BMI decreased the expected death by 6.7%, ASA-3 or ASA-4 patients had a 3.1 -fold increased expected death compared to ASA-1 or ASA-2 patients.ConclusionThe number of revisions a patient underwent did not significantly impact mortality. Increased age and ASA were positively associated with mortality but higher BMI was negatively associated. If health status is appropriate, patients can undergo multiple revisions without risk of decreased survival.     

The use of laparoscopy in ventriculoperitoneal shunt revisions

Introduction

Ventriculoperitoneal shunts (VPSs) are routinely placed in children with hydrocephalus. However, they often encounter problems, and revisions are frequent. We sought to evaluate our institutional experience with laparoscopic-assisted VPS revisions.

Methods

With institutional review board approval, a retrospective chart review of 17 consecutive patients who underwent 19 laparoscopic-assisted VPS revisions was conducted. Data extracted included patient demographics, indications for laparoscopic-assisted revision, complications, and shunt outcomes.

Results

The median age at revision was 12 years (0.4-20 years). Ten children (58.8%) had 2 or more previous VPS revisions. Indications for laparoscopic revision included adhesive obstruction, broken shunt retrieval, cerebrospinal fluid pseudocyst, diagnostic laparoscopy, and conversion from ventriculoatrial shunt to VPS. Three patients required repeat VPS revision for distal shunt failure, whereas 2 patients required repeat VPS revision for proximal dysfunction. Failures occurred 5 to 258 days after laparoscopic-assisted revision. Median follow-up was 21 weeks (interquartile range, 6-57 weeks). No patients developed abdominal infections postoperatively.

Conclusion

Laparoscopy is useful in select patients with distal VPS failure. Patients with multiple previous revisions, prior abdominal surgery, previous intraperitoneal infections, broken devices, or cerebrospinal fluid pseudocysts may benefit from this approach. Further prospective studies with long-term follow-up are needed to determine which patients benefit most from the laparoscopic-assisted approach.     

Unsatisfactory results after repeated revision of hip arthroplasty. 61 cases followed for 5 (1-10) years.

61 cemented second revision total hip arthroplasties and 18 cemented third revision total hip arthroplasties were studied with emphasis on causes of failure, complications, risk of further revision, and clinical and radiographic results of surviving, not further revised patients. Aseptic loosening was the major reason for both second and third revisions followed by recurrent dislocations. Of 61 second revisions, 21 failed again. Postoperative dislocation was the major complication, encountered in 10/61 after second revisions and in 4/18 third revisions. 10 second revisions were reoperated on without exchange of components, but for causes related to the implant. The clinical and radiographic outcome of surviving, not further revised patients was favorable, but must be seen in the light of the high rate of further revisions. In 33 of 53 second revisions and in 5 of 13 third revisions left for evaluation, the outcome was considered unsatisfactory. We conclude that reoperations for failed arthroplasties should be the prerogative of highly experienced centers.     

Surgical and endovascular revision of infrainguinal vein bypass grafts: analysis of midterm outcomes from the PREVENT III trial

OBJECTIVE: Data supporting the utility of percutaneous treatment to maintain vein graft patency have been limited to a collection of single-institution, retrospective analyses. Using the prospective, multi-institutional PREVENT III database, we sought to define the outcomes for endovascular vs surgical vein bypass graft revision and to define predictors for the success or failure of these interventions. METHODS: A nested cohort study of 1404 patients in the PREVENT III trial who underwent infrainguinal vein bypass grafting for critical limb ischemia was performed to identify those patients who underwent either open surgical or endovascular graft revision. All patients in PREVENT III were followed up for 1 year from the initial bypass operation. The following were modeled as end points from the time of the initial open surgical or endovascular revision: freedom from graft reintervention, occlusion, amputation, and death. RESULTS: A total of 156 open surgical and 134 endovascular reinterventions were performed, with a mean follow-up after revision of 193 and 151 days, respectively. Although the demographics for each group were similar, the choice of repair was influenced by the interval between the index graft placement and the initial revision, with a high percentage of the early graft revisions treated with an open surgical procedure (0-1 months: 84% open surgical vs 16% endovascular; P < .001). The primary end point (ie, failure resulting in repeat graft revision, graft occlusion, or major amputation) was reached in 30.2% of the endovascular and 26.2% of the open surgical individuals, with significant improvements in the durability of graft revisions noted in the open surgical group (12-month amputation-/revision-free survival of 75% for the open surgical and 56% for the endovascular group; hazard ratio, 2.2; 95% confidence interval, 0.92-5.26; P = .043). Furthermore, subgroup analysis revealed this benefit to be most profound within the subset of thrombosed grafts undergoing salvage (P = .006). For revisions performed to treat graft stenosis, early outcomes were similar, with a trend favoring the open surgical group developing beyond 6 months. Although 80% of open surgical and 64% of endovascular-revised grafts required no further intervention, endovascular revisions necessitated significantly more reinterventions to maintain patency. The mean hospital lengths of stay (open surgical, 2.1 days; endovascular, 1.7 days) and quality of life at completion of the study (VascuQoL: open surgical, 4.72; endovascular, 4.76) were similar between the groups. CONCLUSIONS: Open surgical revision of infrainguinal vein grafts provides an increased freedom from further reinterventions or major amputation, but early success rates for endovascular procedures were similar, particularly for nonoccluded grafts. With time, endovascular revisions necessitate an increasing number of reinterventions and manifest higher rates of failure.     

Revisions of metal-on-metal hip resurfacing: lessons learned and improved outcome

This retrospective, consecutive case series of a single surgeon performed between 2001 and 2010 assesses the outcome following revision of metal-on-metal hip resurfacing arthroplasties (N = 113). Mean time to revision was 31 months (0-101) after primary hip resurfacing. Malpositioning of the components with associated wear-induced soft tissue fluid collections was the most frequent factor leading to failure of a hip resurfacing arthroplasty. The mid-term outcome of the revisions was satisfactory; complications occurred in 11 patients (9.7%). Six of these patients underwent a re-revision.     

Total hip arthroplasties: What are the reasons for revision?

Primary total hip arthroplasties have reported success rates of greater than 95% in many series with a longer than 10-year follow-up. Revision total hip arthroplasty due to such factors as increased high-activity levels, younger patients undergoing the procedure and increasing life expectancy has become more prevalent. An understanding of the mechanisms and timing of total hip arthroplasty failure can direct efforts aimed at reducing revision rates. This study was conducted to evaluate the indications for revision hip arthroplasty and relate these to the time after the index primary hip arthroplasty. A review of all revision hip arthroplasties at two centres over a 6-year time period identified 225 patients who underwent 237 revisions. The overall mean time to revision was 83 months (range: 0-360 months). The cause of failure was aseptic loosening in 123 hips (51.9%), instability in 40 hips (16.9%) and infection in 37 hips (5.5%). When stratified into two groups (less than 5 years, more than 5 years after the index primary hip arthroplasty), 118 of 237 (50%) revisions occurred in less than 5 years, with 33% due to instability and 24% resulting from infection. The majority of the causes of failure within 5 years in these early revisions were instability and deep infection. The success of hip arthroplasty is likely to be compromized if technical aspects of the surgery for appropriate component positioning and critical protocols to minimise complications such as infection are not given the proper attention.