Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.
Laboratory of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China.
Orthop Surg. 2024 Oct;16(10):2401-2409. doi: 10.1111/os.14143. Epub 2024 Jul 23.
OBJECTIVE: Many methods of acetabular reconstruction with total hip arthroplasty (THA) for Crowe type II and III adult developmental dysplasia of the hip (DDH) acetabular bone defect have been implemented clinically. However, there was no study comparing the results of integrated acetabular prosthesis (IAP) with bone grafting (BG). This study aims to investigate the efficacy of IAP and BG for acetabular reconstruction in Crowe type II and III DDH. METHODS: The clinical data of 45 patients with unilateral Crowe type II and III DDH who underwent THA from January 2020 to January 2023 were retrospectively analyzed. The patients were divided into two groups: 25 patients using 3D-printed IAP (IAP group) and 20 patients using BG (BG group). The operation time and intraoperative blood loss were recorded. The clinical outcomes were assessed by Harris Hip Score (HHS) and full weight-bearing time. The radiological outcomes were evaluated by the radiological examination. Accordingly, intraoperative and postoperative complications were observed as well. The data between the two groups were compared by independent sample t-tests and the Mann-Whitney U rank sum test. RESULTS: There were no significant differences between the two groups in Harris Hip Score (HHS) (preoperative, 6 months postoperative, and the last follow-up), leg length discrepancy (LLD), cup inclination, cup anteversion, vertical center of rotation (V-COR), horizontal center of rotation (H-COR) (p > 0.05). The mean HHS in the IAP group was higher than in the BG group at 1 and 3 months postoperative (p < 0.001). The mean surgical time and blood loss in the IAP group were less than in the BG group (p < 0.001). The mean full weight-bearing time in the IAP group was shorter than in the BG group (p < 0.01). No complications were observed in either group during the follow-up period. CONCLUSION: IAP and BG have similar radiographic outcomes and long-term clinical efficacy in THA for Crowe type II and III DDH, but the IAP technique has higher surgical safety and facilitates the recovery of hip joint function, which is worthy of clinical promotion.
目的:对于 Crowe Ⅱ型和Ⅲ型成人发育性髋关节发育不良(DDH)髋臼骨缺损,全髋关节置换术(THA)有多种髋臼重建方法。然而,目前还没有研究比较整体髋臼假体(IAP)与植骨(BG)的结果。本研究旨在探讨 IAP 和 BG 治疗 Crowe Ⅱ型和Ⅲ型 DDH 髋臼重建的疗效。
方法:回顾性分析 2020 年 1 月至 2023 年 1 月间 45 例单侧 Crowe Ⅱ型和Ⅲ型 DDH 患者接受 THA 的临床资料。患者分为两组:25 例采用 3D 打印 IAP(IAP 组),20 例采用 BG(BG 组)。记录手术时间和术中失血量。采用 Harris 髋关节评分(HHS)和完全负重时间评估临床疗效。影像学检查评估影像学结果。观察术中及术后并发症。采用独立样本 t 检验和 Mann-Whitney U 秩和检验比较两组数据。
结果:两组患者 Harris 髋关节评分(HHS)(术前、术后 6 个月和末次随访)、下肢长度差异(LLD)、杯倾斜角、杯前倾角、垂直旋转中心(V-COR)、水平旋转中心(H-COR)差异无统计学意义(p>0.05)。IAP 组术后 1 个月和 3 个月 HHS 均高于 BG 组(p<0.001)。IAP 组手术时间和术中出血量均少于 BG 组(p<0.001)。IAP 组完全负重时间短于 BG 组(p<0.01)。两组患者随访期间均未见并发症。
结论:IAP 和 BG 治疗 Crowe Ⅱ型和Ⅲ型 DDH 的髋臼重建具有相似的影像学结果和长期临床疗效,但 IAP 技术具有更高的手术安全性,有利于髋关节功能的恢复,值得临床推广。
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