class="Heading">Background class="Para">Posterior wall fractures are the most common of all acetabular fractures, and there is universal consensus that displaced fractures are best treated with anatomical reduction and stable internal fixation. Though early and mid term results for such studies are available, few shed light on long term results. This study was performed to evaluate long term functional and radiological outcomes in patients with posterior wall acetabular fractures and to determine factors that may contribute adversely to a satisfactory final outcome. class="Heading">Materials and methods class="Para">We retrospectively analysed the hospital records for patients who underwent open reduction and internal fixation (ORIF) for posterior wall acetabular fractures. Twenty-five patients (20 men, five women), including one with bilateral posterior wall fracture, with a mean age of 41.28?±?7.16?years (range 25–60?years) and a mean follow-up of 12.92?±?6.36?years (range 5–22?years) who met the inclusion criteria formed the study cohort. Matta’s criteria were used to grade postoperative reduction and final radiological outcome. Functional outcome at final follow-up was assessed according to d’Aubigné and Postel score. class="Heading">Results class="Para">Anatomic reduction was achieved in 22 hips, imperfect in four and poor in none. Radiological outcome at final follow-up revealed excellent results in ten hips, good in eight, fair in five and poor in three. The final d’Aubigné and Postel scores were excellent in 14 hips, good in six and fair and poor in three each. Patients with anatomical reduction had a favourable functional and radiological long term outcome. However, the presence of associated injuries in lower limbs and a body mass index (BMI) 25 adversely affected the final functional outcome. Osteonecrosis was seen in three patients, heterotopic ossification in two and Morel Lavallee lesion in one. One patient had postoperative sciatic nerve palsy, which recovered 6?weeks after surgery. class="Heading">Conclusion class="Para">Anatomic postoperative reduction leads to optimal functional and radiological outcome on long term follow-up; however, the presence of associated lower-limb injuries and BMI 25 adversely affects a satisfactory final outcome in patients with posterior wall acetabular fractures. class="Heading">Level of evidence class="Para">(Level 4) Retrospective case series.
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机译：class =“ Heading”>背景 class =“ Para”>后壁骨折是所有髋臼骨折中最常见的，并且普遍共识是最好采用解剖复位和稳定的内固定治疗移位的骨折固定。尽管可以获得此类研究的早期和中期结果，但很少有人能了解长期结果。这项研究的目的是评估后壁髋臼骨折患者的长期功能和放射学结局，并确定可能对令人满意的最终结局产生不利影响的因素。 class =“ Heading”>材料和方法 class =“ Para”>我们回顾性分析了因髋臼后壁骨折而行切开复位内固定（ORIF）的患者的医院记录。 25例患者（20例男性，5例女性），其中1例患有双侧后壁骨折，平均年龄为41.28±7.16岁（25-60岁），平均随访时间为12.92±±。符合纳入标准的“ 6.36年”（5-22年）构成了研究队列。 Matta的标准用于对术后复位和最终放射学结局进行分级。根据d'Aubigné和Postel评分评估最终随访时的功能结局。 class =“ Heading”>结果 class =“ Para”>在22髋中实现了解剖学上的减少，四分之三不完美，全无。最终随访的放射学结果显示，髋部十个优异的结果，八处良好，五处中等，三处差。 d'Aubigné和Postel的最终成绩在14髋中优异，在6中良好，在三个方面均较差和较差。解剖复位的患者具有良好的功能和放射学长期结果。但是，下肢相关损伤的存在和体重指数（BMI）> 25会对最终的功能结局产生不利影响。三例患者见骨坏死，二例异位骨化，一例莫雷尔拉瓦利病。一名患者发生坐骨神经麻痹，手术后6周即可恢复。 class =“ Heading”>结论 class =“ Para”>解剖学上的术后复位可导致最佳的功能和影像学检查长期随访的结果;但是，相关的下肢损伤和BMI> 25会对后壁髋臼骨折患者的令人满意的最终结局产生不利影响。 class =“ Heading”>证据水平 类=“ Para”>（第4级）回顾性案例系列。
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