骨盆环微创内固定治疗骨盆C型骨折

目的 :探讨骨盆前、后环微创内固定在骨盆C型骨折治疗中的可行性、技术要点以及临床效果。方法:自2010年12月至2015年12月,选择经髂腹股沟微创小切口重建接骨板内固定治疗骨盆前环损伤;经皮骶髂关节螺钉内固定治疗骨盆后环损伤患者18例,男11例,女7例;年龄29~68岁,平均43.6岁。骨折按Tile分型:C1型14例,C2型3例,C3型1例。耻骨骨折合并同侧骶骨骨折12例,耻骨骨折合并同侧骶髂关节脱位2例,双侧耻骨骨折合并单侧骶骨骨折伴耻骨联合分离3例,双侧耻骨骨折合并双侧骶髂关节骨折脱位1例。观察结果包括手术时间、手术出血量、腰骶神经及髂血管损伤情况、骨折复位情况等。结果:所有患者伤口Ⅰ期愈合,无感染、深静脉血栓、腰骶神经及髂血管损伤、异位骨化等并发症发生。根据Matta复位标准,优14例,良3例,可1例。16例患者获得随访,时间6~33个月,平均16.7个月。根据Majeed疗效评价标准,优15例,良1例,Majeed评分92.13±5.44。结论:骨盆前环损伤选择经髂腹股沟微创小切口重建接骨板内固定,骨盆后环损伤选择经皮骶髂关节螺钉内固定治疗骨盆C型骨折具有手术时间短、创伤小、出血少等优点,临床操作安全可行,疗效满意。     

骶髂关节螺钉联合前环耻骨支螺钉在Tile B型骨盆骨折中的应用

目的 :探讨微创经皮骨盆前环耻骨支螺钉固定在Tile B型骨折中的应用及疗效。方法 :回顾性分析自2010年5月至2015年8月收治的骨盆后环损伤伴前环耻骨支、坐骨支骨折患者56例,其中男31例,女25例;年龄35~65岁,平均36.8岁。按Tile分型:B1型13例,B2型28例,B3型15例。26例采用骶髂螺钉联合外固定架治疗(外固定架组),30例采用骶髂螺钉联合前柱螺钉治疗(耻骨支螺钉组),从术中出血量、术后并发症、术后下地时间、骨折愈合情况、Majeed骨盆功能评分和视觉模拟评分(visual aualogue scale,VAS)等方面进行对比分析。结果:54例获得随访,时间3~24个月,平均12个月,两组术中出血量比较差异无统计学意义(P0.05),耻骨支螺钉组术后下床时间、骨折愈合时间明显短于外固定架组,差异有统计学意义(P0.05)。耻骨支螺钉组术后平均Majeed及VAS评分明显高于外固定架组,差异有统计学意义(P0.05)。耻骨支螺钉组并发症发生率明显低于外固定架组,差异有统计学意义(P0.05)。结论 :骶髂螺钉联合经皮耻骨支螺钉在治疗骨盆后环损伤伴前环耻骨支、坐骨支骨折的Tile B型骨盆骨折中具有术后下地时间早、疼痛减轻、并发症少等优点,是一种有效安全的治疗方法,能提高术后肢体功能,且有效减少术后并发症的发生。     

Colorado 2TM脊柱内固定系统及髂骨螺钉联合应用治疗骨盆后环损伤

目的:探讨Colorado 2TM脊柱内固定系统与髂骨螺钉联合应用治疗骨盆后环骨折脱位的疗效.方法:2006年1月至2007年12月共收治骨盆后环骨折脱位患者8例,男5例,女3例;年龄26～52岁,平均37.6岁.按照AO分型,B2型1例,C1型2例,C2型2例,C3型3例.其中合并单侧骶骨骨折伴脱位5例;均合并骨盆前环骨折,包括耻骨联合分离2例,耻骨上下支骨折5例,耻骨上下支骨折合并髋臼骨折1例.合并骶丛神经损伤2例,膀胱破裂1例.均行Colorado 2TM脊柱内固定系统与髂骨螺钉联合内固定术,应用Majeed标准(优,≥85分;良,70～84分;一般,55～69分;差,<55分)评价患者功能恢复情况,随访观察治疗效果.结果:术后X线片示8例患者垂直和旋转移位均获满意复位.随访6～24个月,平均10个月.合并神经损伤者,1例随访10个月遗留会阴区麻木,另1例术后6个月复查功能恢复良好.膀胱破裂患者经手术修补随访8个月功能恢复满意.末次随访时患者双下肢运动、感觉功能恢复满意,经Majeed功能评定,优6例,良1例,一般1例.X线片及CT扫描未发现内固定松动、断裂,骶髂关节无再脱位,骨折部位已呈骨性融合.结论:Colorado 2TM脊柱内固定系统与髂骨螺钉联合应用治疗骨盆后环骨折脱位可获得即刻稳定并能够维持良好复位效果,为骨盆后环骨折脱位的治疗提供了一种新的方法.     

手术治疗耻骨联合分离合并耻骨上下枝骨折1例报告

骨盆骨折多由于直接暴力所造成的。侧方挤压损伤多局限于耻骨支和耻骨联合处,骨盆骨折传统的治疗手段是骨盆帆布兜悬吊或骨盆兜夹扳固定,卧床需6～8周即可,传统的治疗方法对骨盆环完整性效果较好。本例骨盆骨折为一例耻骨上枝骨折另一侧耻骨上下支骨折合并耻骨联合分离旋转移位,保守治疗很难     

经皮空心螺钉内固定术治疗DayⅡ型骨盆新月型骨折北大核心CSCD

目的探讨经皮空心螺钉内固定术治疗DayⅡ型骨盆新月型骨折的可行性及疗效。方法回顾分析2009年1月—2016年7月采用经皮空心螺钉内固定术治疗的14例DayⅡ型骨盆新月型骨折患者临床资料。其中男9例,女5例;年龄17~65岁,平均38岁。致伤原因:交通事故伤8例,高处坠落伤3例,重物砸伤3例;均为闭合性骨折。骨盆骨折Tile分型:B型8例,C型6例。13例伴骨盆前环骨折,其中耻骨上下支均骨折8例,耻骨上支骨折伴耻骨联合分离1例,耻骨联合分离4例。受伤至入院时间1~72 h,平均16 h;伤后至手术时间3~8 d,平均5 d。术后根据Matta评价标准评价骨折复位情况,采用Majeed功能评分进行临床功能评价。结果总手术时间35~95 min,平均55 min;术中累计C臂X线机透视时间3~8 min,平均5 min;术中均无神经损伤及盆腔脏器损伤等发生。术后2 d行X线片检查显示各有2例垂直移位及轻度旋转移位未完全纠正。术后3 d行CT检查,发现2枚耻骨联合螺钉突破闭孔骨皮质;所有耻骨支螺钉均未进入髋臼,1枚耻骨上支螺钉突破耻骨上支后侧骨皮质;1枚髂骨后柱螺钉突破髂骨内侧骨皮质;但均未引起临床症状。1例出现耻骨联合处伤口感染,经更换敷料2周后伤口愈合;其余伤口均Ⅰ期愈合。骨折复位按Matta评价标准评价,获优9例,良4例,可1例,优良率92.9%。术后14例均获随访,随访时间8~24个月,平均14个月。骨折均在术后4个月内愈合,术后6个月患者均恢复正常行走功能。3例患者劳累或行走时骶髂部轻微疼痛,轻度跛行;1例平卧时有髂后部疼痛不适感。随访期间无螺钉松动、断裂等内固定失效发生。末次随访时按Majeed功能评分评价临床功能,获优7例,良5例,可2例,优良率85.7%。结论经皮空心螺钉内固定术治疗DayⅡ型骨盆新月型骨折,复位满意,固定可靠,疗效较好。     

联合Galveston技术和TSRH系统治疗严重骶髂关节骨折脱位的初步报告

骶髂关节骨折脱位是最不稳定的骨盆环损伤,它通常合并耻骨联合分离及耻骨支骨折,造成前后环均损伤。传统的非手术疗法常遗留疼痛和骨盆垂直及旋转不稳。研究证实,如果复位不满意,可导致功能障碍[1～4 ] ,而骶髂关节的垂直移位靠传统的外固定架及拉力螺钉、钢板和棒等复位是困难的。作者采用Galveston技术结合TSRH系统治疗骶髂关节骨折脱位3例取得较好效果。1　材料和方法1.2　病例资料　本组3例,男2例,女1例。年龄分别为36、4 2、2 2岁。损伤原因:交通事故伤2例,压伤1例。其中1例伴有股骨干骨折。所有患者均为TileC型骨折,C1型1例,C2 型…     

动力化前路方形区钛板螺钉系统固定伴有对侧骨盆前环不稳的髋臼双柱骨折的站位有限元分析

目的 利用有限元技术探讨当对侧骨盆前环不稳时,动力化前路方形区钛板螺钉系统(DAPSQ)内固定治疗髋臼双柱骨折的生物力学稳定性.方法 利用有限元分析技术建立正常人体全骨盆有限元模型并进行有限元验证,建立3种骨折内固定模型:A:DAPSQ固定右侧髋臼双柱骨折模型,左侧耻骨支完整;B:DAPSQ固定右侧髋臼双柱骨折模型,左侧耻骨上下支骨折但不予固定;C:DAPSQ固定右侧双柱骨折模型,左侧耻骨上下支骨折,但耻骨上支采用钛板固定.限制各模型的三维自由度,加载生理载荷后进行有限元计算,分析比较各内固定模型骨折端的位移及应力分布情况.结果 通过对A、B、C3组骨折模型的髋臼横向、纵向位移及应力云图分析与比较后发现,C组在骨盆环稳定时采用DAPSQ固定模型的横向及纵向位移小,符合复位标准,应力分布均匀,无明显高度集中现象.骨折线上的横向及纵向位移呈现B＞C＞A,站位下A、B、C纵向位移分别为(1.315 ±0.171)、(1.490 ±0.247)、(1.334 ±0.160) mm,站位横向位移分别为(1.185±0.700)、(1.337±0.080)、(1.198 ±0.103) mm.结论 在应用DAPSQ固定髋臼双柱骨折时,只有在确保对侧骨盆前环的稳定前提下,DAPSQ才能提供有效可靠的固定.     

切开复位内固定治疗耻骨联合浮动伤

 目的 探讨耻骨联合浮动损伤的临床特点及采用切开复位内固定治疗的效果。方法 回顾性分析2008年1月至2013年1月采用切开复位内固定治疗48例耻骨联合浮动损伤患者资料,男31例,女17例;年龄20~61岁,平均36.5岁;车祸伤35例,坠落伤8例,挤压伤5例。骨盆骨折AO分型: B型13例,C型35例。其中45例合并骨盆后环骨折,14例合并髋臼骨折,17例合并四肢骨折,11例合并胸腹部损伤,6例合并泌尿生殖系统损伤。受伤至手术时间3~25 d,平均7 d。骨盆前环固定方法：重建钛板固定双侧耻骨支骨折41例,微创空心钉固定7例。同时固定后环损伤41例,其中12例采用骶髂前钢板固定,5例采用骶髂螺钉固定,18例采用髂骨后“M”型板固定,6例采用髂腰固定。结果 44例获得随访,随访时间12~36个月,平均16个月,骨折全部临床愈合,愈合时间10~16周,平均12.6周。采用Matta标准评价骨折复位情况,其中优21例,良16例,可7例,优良率为84.1%（37/44）。末次随访时Majeed评分为65~100分,平均81.5分,其中优30例,良10例,可4例,优良率为90.9%（40/44）。术后3天,2例患者发生脂肪液化,经换药2~3周后治愈;术后5~15 d,平均10 d,8例发生下肢深静脉血栓,经给予低分子肝素等保守治疗1~6个月,平均3.5个月后血栓治愈;术后5~7 d,平均6 d,3例出现耻骨疼痛,给予抗炎止痛药物、理疗等治疗1年后疼痛解除。无一例发生钢板断裂脱出、感染及医原性神经、血管损伤等并发症。结论 耻骨联合浮动伤是一类严重的骨盆骨折,多数合并后环损伤,影响骨盆稳定性,切开复位内固定可以稳定骨盆,有助于早期活动及功能锻炼,从而获得良好临床效果。     

逆行耻骨上支髓内钉固定治疗骨盆前环骨折的疗效分析

目的介绍一种逆行耻骨上支髓内钉, 探讨其固定治疗骨盆前环骨折的临床疗效。方法回顾性分析2020年6月至2021年2月期间华中科技大学同济医学院附属同济医院创伤外科收治且获得随访的14例骨盆前环骨折患者资料。男10例, 女4例;年龄(44.8±12.5)岁;骨盆骨折根据AO/OTA分型:61-A型5例, 61-B型4例, 61-C型5例;骨盆前环骨折根据Nakatani分型:单侧Ⅰ区骨折1例, 单侧Ⅱ区骨折5例, 单侧Ⅲ区骨折2例, 右侧Ⅱ区、左侧Ⅲ区骨折3例, 左、右两侧均为Ⅲ区骨折2例, 左、右两侧均为Ⅱ区骨折1例。受伤至手术时间为(7.8±1.8)d。所有患者骨盆前环骨折均采用逆行耻骨上支髓内钉固定。记录患者每枚髓内钉的置入时间、术中X线透视次数、骨折复位质量、末次随访时骨盆功能及并发症发生情况等。结果 14例患者共置入18枚逆行耻骨上支髓内钉, 术中每枚髓内钉置入时间为(35.9±8.6)min, 术中X线透视次数为(22.8±1.9)次。术后所有患者置钉处手术切口均未发生感染。术后骨折复位质量根据Matta评分标准评定:优7例, 良5例, 可2例。14例患者术后获(18.1±1...     

弯针技术在耻骨支骨折中的应用

目的 探讨弯针技术在耻骨支骨折置入中的应用。方法 回顾性分析湖南省常德市第一中医医院创伤二科在2017年1月-2021年1月对无明显移位或轻中度移位的耻骨支骨折经皮微创置入空心螺钉的66例（82处）患者资料。随机分为两组,观察组均使用弯针技术（即以6.5 mm钛质空心拉力螺钉充当“骨折复位器”,以2.0 mm的克氏针当髓腔导针,精准置入空心钉）置入42枚耻骨支螺钉,所有患者于伤后3～7 d围手术期稳定后在C臂机引导下行手术治疗;对照组常规置入40枚耻骨支螺钉。观察并记录两组患者术后骨折复位情况与单枚螺钉置入时间。结果 66例患者共置入82枚空心螺钉,术后骨盆正位、骨盆出入口位及骨盆CT三维成像证实所有置入的螺钉均顺利通过耻骨支通道,未见螺钉穿出情况发生。采用Matta标准评价术后手术复位情况,对照组：优31处,良5处,可4处,优良率90.00%。观察组：优39处,良2处,可1处,优良率97.62%,P <0.05差异具有统计学意义;组间单枚置入时间比较,差异有统计学意义（P <0.05）。结论 采用弯针技术可以很好地解决耻骨支通道狭窄、不规则、置钉困难的问题,减少透视次数,...     

Displaced inferior ramus fractures as a marker of posterior pelvic injury

Introduction

Injuries to the anterior or posterior pelvic ring rarely occur in isolation. Disruption to the anterior pelvic ring, indicated by a fracture of the superior or inferior pubic ramus, or injury to the pubic symphysis, may be indicative of additional pelvic ring disruption. The purpose of this retrospective study was to determine whether displaced inferior pubic ramus fractures warrant a more detailed investigation of the posterior ring in an effort to predict unstable posterior pelvic ring injuries.

Materials and methods

All patients with a displaced inferior ramus fracture on AP pelvic radiograph were identified at a single level I trauma center over a 5-year period. Complete pelvic radiographs and computed tomography scans were then evaluated for additional pelvic ring injuries. The data were analyzed using the chi-square test to determine the association between inferior ramus fractures and posterior pelvic ring injury.

Results

Sixty-three of the 93 patients with a fracture of the inferior ramus (68 %) were found to have a posterior ring injury; 60 % of these injuries were unstable. Patients with concurrent superior ramus fractures were more likely to have a posterior ring injury (p < 0.001) and an unstable pelvis (p = 0.018). Of those with a displaced unilateral inferior ramus fracture, parasymphyseal involvement was associated with higher incidence of posterior ring injury (p = 0.047) and pelvic instability (p = 0.028).

Conclusion

The anterior pelvic ring can be used to help identify unstable injuries to the posterior pelvis. Patients with displaced inferior pubic ramus fractures warrant a detailed examination of their posterior ring to identify additional injuries and instability.     

Die retrograde transpubische Schraubenfixation von oberen Schambeinastbrüchen

OBJECTIVE: Reduction and retention of unstable and/or severely displaced fractures of the upper pubic ramus with an associated risk of injury to the pelvic organs with transpubic screw fixation. Restoration of form and function of the pelvis. INDICATIONS: Injuries to the pelvic ring with displaced and/or unstable fractures of the upper pubic ramus. Stabilization of the anterior column of the acetabulum in isolated fractures of the anterior column. Additional internal fixation as part of the management of acetabular fractures with transverse components, combined with stabilization of the posterior column. CONTRAINDICATIONS: Poor general health, local soft-tissue injury. SURGICAL TECHNIQUE: Pfannenstiel's incision to achieve open reduction and screw fixation of the pubic ramus under image intensification. POSTOPERATIVE MANAGEMENT: Depending on the general condition of the patient and pelvic ring stability, mobilization on forearm crutches with partial weight bearing (one fifth of body weight) of the side with injury to the posterior pelvic ring. RESULTS: Transpubic screw fixation was performed in 16 patients with displaced fractures of the upper pubic ramus as part of pelvic ring injuries (twice type A, six times type B, eight times type C). Intraoperative complications were not observed. Postoperative complications occurred in two cases (one rectus hernia, one screw pullout with manifestation of chronic osteomyelitis of the pubic ramus). All other fractures healed within 3 months.     

A biomechanical comparison of superior ramus plating versus intramedullary screw fixation for unstable lateral compression pelvic ring injuries,,,

IntroductionManagement of the anterior component of unstable lateral compression (LC) pelvic ring injuries remains controversial. Common internal fixation options include plating and superior pubic ramus screws. These constructs have been evaluated in anterior-posterior compression (APC) fracture patterns, but no study has compared the two for unstable LC patterns, which is the purpose of this study.MethodsA rotationally unstable LC pelvic ring injury was modeled in 10 fresh frozen cadaver specimens by creating a complete sacral fracture, disruption of posterior ligaments, and ipsilateral superior and inferior rami osteotomies. All specimens were repaired posteriorly with two fully threaded 7 mm cannulated transiliac-transsacral screws through the S1 and S2 corridors. The superior ramus was repaired with either a 3.5 mm pelvic reconstruction plate (n = 5) or a bicortical 5.5 mm cannulated retrograde superior ramus screw (n = 5). Specimens were loaded axially in single leg support for 1000 cycles at 400 N followed by an additional 3 cycles at 800 N. Displacement and angulation of the superior and inferior rami osteotomies were measured with a three-dimensional (3D) motion tracker. The two fixation methods were then compared with Mann-Whitney U-Tests.ResultsRetrograde superior ramus screw fixation had lower average displacement and angulation than plate fixation in all categories, with the motion at the inferior ramus at 800 N of loading showing a statistically significant difference in angulation.ConclusionAlthough management of the anterior ring in unstable LC injuries remains controversial, indications for fixation are becoming more defined over time. In this study, the 5.5 mm cannulated retrograde superior ramus screw significantly outperformed the 3.5 mm reconstruction plate in angulation of the inferior ramus fracture at 800 N. No other significance was found, however the ramus screw demonstrated lower average displacements and angulations in all categories for both the inferior and superior ramus fractures.     

Detection of posterior pelvic injuries in fractures of the pubic rami

BackgroundFractures of the pubic rami are associated with prolonged pain, bed rest and increased morbidity and mortality. Often no further diagnostic work-up is undertaken and the pubic rami fractures are classified as stable injuries. However, fractured pubic rami seem to be only part of the picture and are often associated with posterior pelvic ring injury.This retrospective study was designed to evaluate the posterior ring for undetected injury in patients diagnosed with pubic rami fractures.MethodsAll patients (n = 233) with diagnosed fractures of the pubic rami were retrospectively retrieved. All patients with a CT scan available at time of admission (n = 177) were included in the study.ResultsIn 28.8% of the cases a fracture of the acetabulum was found additionally to the pubic rami. In cases without obvious other injury of the ap radiograph, an injury of the posterior pelvic ring was found on CT scans in 96.8% of the patients. Most lesions represented transforaminal sacral fractures, avulsion fractures of ligaments or compression fractures of the lateral mass. All patients with dorsal injuries could initially be treated conservatively, nevertheless 30% of them needed operative treatment in the course.ConclusionNearly all cases with fractures of the pubic rami do have a lesion elsewhere within the pelvic ring. In patients with prolonged pain and immobility following ‘pubic rami fractures’ one should be aware that they probably represent an undiagnosed pelvic ring injury and further diagnostic work-up – sometimes even surgery – is warranted.     

Pudendal nerve in pelvic bone fractures

IntroductionPelvic ring injuries rank among the most serious skeletal injuries. According to published data, pelvic fractures constitute 3–8% of all fractures. There has been a threefold increase in the number of these fractures over the last 10 years. A significant factor determining the choice of the therapeutic procedure, timing and sequence of individual steps, and also the prognosis of the patient with a fractured pelvis, are associated injuries defined as injuries to the organs and anatomical structures found in the pelvic region. Published data describes the incidence of injury to neurogenic structures as ranging between 9 and 21%, to the urogenital tract between 5 and 11%, to the gastrointestinal tract in 3–17% and to the gynecologic organs up to 1%. The pathway of the pudendal nerve may be affected in types B and C fractures where the root fibers emerge from the foramina sacralia and plexus sacralis is formed, on the one hand, and in types A, B and C fractures during the nerve's course alongside the inferior pubic ramus.Materials and methodsIn order to determine the frequency of potential injury to the pudendal nerve, a set of 225 pelvic fractures treated between 2007 and 2009 was assessed; 38 fixed hemipelves were also used to study the length of the course of the pudendal nerve alongside the inferior pubic ramus, on the one hand, and the distances from the symphysis pubica at the crossing of the branches of the n. pudendus–n. dorsalis penis and the branches for the muscles of the diaphragma urogenitale on the other hand.ConclusionThe work elucidated the selected distances and discuss their possible clinical relevance for evaluation of the seriousness of pelvic fractures from the perspective of late sequelae in the region innervated by the pudendal nerve.     

Aktueller Stand der Versorgung vorderer Beckenringfrakturen

The incidence of pelvic injury is increasing. In addition to high-speed trauma among younger patients, low-speed injuries among mainly older people (osteoporotic age-related fractures) play an important role. Pelvic ring stability is the most important consideration in the indication for conservative or surgical therapy. Unstable pelvic ring injuries are combined with severe concomitant injuries in >80% of cases and their primary treatment is usual in the context of multiple trauma management. In the case of anterior pelvic ring injuries (undisplaced/minimally displaced anterior pelvic ring fractures, pelvic rim breaks, type A avulsion fractures), fractures are usually stable and can be treated conservatively. Unstable pelvic ring fractures are generally treated surgically, enabling early functional aftercare in addition to anatomical reconstruction. Established osteosynthesis procedures for the anterior pelvic ring include external fixation, plate osteosynthesis and pubic rami screw. It is too early to say whether, and to what extent, new fixed-angle plate systems can improve the clinical results of surgically treated anterior pelvic ring injuries.     

Can preoperative radiographs predict hardware complication or fracture displacement after operative treatment of pelvic ring injuries?

IntroductionOperative fixation of pelvic ring injuries is associated with a high risk of hardware failure and loss of reduction. The purpose of this study was to determine whether preoperative radiographs can predict failure after operative treatment of pelvic ring injuries and if the method of fixation effects their risk.Patients and MethodsWe conducted a retrospective cohort study of 143 patients with pelvic ring injuries treated with operative fixation at a level 1 trauma center. Preoperative radiographs were examined for the presence of the following characteristics: bilateral rami fractures, segmental or comminuted rami fractures, contralateral anterior and posterior injuries, complete sacral fracture, and displaced inferior ramus fractures. The method of fixation was classified based on the presence of anterior, posterior, or combined anterior and posterior fixation as well as whether or not posterior fixation was performed at a single or multiple sacral levels. Post-operative radiographs were examined for hardware failure or loss of reduction.ResultsTwenty-one patients (14.7%) demonstrated either hardware complication or fracture displacement within 6 months of surgery. Male sex was associated with a decreased risk of hardware complication (OR 0.11 [0.014, 0.86]; p=0.03). Posterior pelvic ring fixation at multiple sacral levels was associated with a decreased risk of fracture displacement (OR 0.21 [0.056, 0.83]; p=0.02). We were unable to demonstrate a significant association between preoperative radiographic characteristics and risk of hardware failure or fracture displacement.ConclusionOur study demonstrates that both gender and the method of posterior fixation are associated with hardware failure or displacement.     

Supraacetabular External Fixation for Pelvic Ring Fractures

Abstract Objective: Closed reduction and maintenance of pelvic ring injuries by external stabilization. Indications: Emergency management of unstable type B and type C pelvic ring fractures. Definitive treatment of type B injuries. Definitive treatment of the anterior pelvic ring in type C injuries with transpubic instability after posterior internal stabilization. Adjunct stabilization of internal fixation. Stabilization of pelvic ring fractures in children. Contraindications: Poor general condition. Local soft-tissue damage. Local infection. Surgical Technique: Bilateral percutaneous insertion of Schanz screws into the supraacetabular area of iliac bone. Closed reduction and stabilization of the pelvic ring by compression and application of a connecting rod under image intensification. Postoperative Management: Depending on the patient’s condition and the degree of pelvic instability, a change to an open procedure may become necessary. Mobilization of the patient with partial weight bearing (one fifth of body weight) on the side of the injured posterior pelvic ring using forearm crutches, irrespective of the degree of stability of the pelvis. Results: Retrospective analysis of 64 supraacetabular external fixator applications to stabilize the anterior pelvic ring in 20 type B and 44 type C injuries. Iatrogenic lesions of the lateral femoral cutaneous nerve: 4.5%; all sensory disturbances completely reversed within 1 year. No pin site infection. In two patients (3%) primary perforation of the Schanz screw into the small pelvis not necessitating any treatment. No secondary displacements of the anterior or posterior pelvic ring in type B injuries nor for type C injuries, sacral fractures associated with fractures of the pubic ramus. One pseudarthrosis of the pubic and ischial rami requiring surgical treatment. The following is a reprint from Operat Orthop Traumatol 2005;17:296–312 and continues the new series of articles at providing continuing education on operative techniques to the European trauma community. Reprint from: Operat Orthop Traumatol 2005;17:296–312 DOI 10.1007/s00064-005-1134-2     

Posterior multifragmentation of the femoral neck: Does it portend a poor outcome in internally fixed intracapsular hip fractures?

Aim

To establish whether posterior multifragmentation of intracapsular proximal femoral fractures leads to an increased incidence of non-union and avascular necrosis following internal fixation by contemporary methods.

Methods

After preoperative radiography which was evaluated for posterior fragmentation, 1042 intracapsular hip fractures (471 undisplaced and 571 displaced) were treated with reduction and internal fixation. The rates of non-union and avascular necrosis in the presence or absence of fragmentation were compared in both undisplaced and displaced groups.

Results

The undisplaced cases comprised 460 non-fragmented and 11 fragmented fractures. The complication rates were 14% and 18%, respectively. Displaced fractures consisted of 489 non-fragmented and 82 fragmented cases. In this group, complication rates were 43% and 40%, respectively. No difference was statistically significant.

Conclusions

Using current methods of internal fixation of intracapsular hip fractures, there is no significant association between the posterior multifragmentation of the femoral neck observed on preoperative radiography and the later development of fracture healing complications.