Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing, China.
Department of Radiology, Peking University Third Hospital, Beijing, China.
Knee Surg Sports Traumatol Arthrosc. 2024 Sep;32(9):2376-2385. doi: 10.1002/ksa.12364. Epub 2024 Jul 15.
(1) To determine the prevalence, magnitude and distribution pattern of acetabular rim ossification in patients with femoroacetabular impingement syndrome (FAIS) and (2) to determine the association between acetabular rim ossification and rotational abnormalities of the hip.
Patients underwent hip arthroscopic surgery for FAIS at our institute between January 2021 and May 2022 were retrospectively reviewed. Patients were included if preoperative computed tomography (CT) images of the operated hip and ipsilateral distal femur were available for the measurement of femoral and acetabular anteversion. The presence and size of acetabular rim ossification were evaluated on coronal CT sections for the superior half of the acetabulum on each clockface location. The associations between acetabular rim ossification and radiographic parameters of hip rotational morphology were examined.
A total of 214 hips were included. Acetabular rim ossification was found in 167 hips (78%) and the most common locations were 10 and 11 o'clock. Patients presenting with acetabular rim ossification had a mean size of 4.6 ± 1.6 mm. It was the largest at 9 o'clock position (4.9 ± 2.2 mm), with a decreasing trend in size from posterior to anterior. Logistics regression analysis found age was associated with the occurrence of posterior ossification (p = 0.002). Linear regression analysis found age (p = 0.049) and male sex (p < 0.001) were significantly correlated with the size of ossification. Patients with increased cranial combined anteversion had larger posterior ossification than patients with normal and decreased cranial combined anteversion (4.2 ± 2.9 vs. 3.1 ± 2.5 mm, p = 0.016; 4.2 ± 2.9 vs. 2.5 ± 2.4 mm, p = 0.005).
Increased combined anteversion is associated with greater posterior acetabular rim ossification. The presence and size of acetabular rim ossification are positively associated with older age and male sex.
Level III.
(1) 确定髋关节撞击综合征 (FAIS) 患者髋臼缘骨化的流行率、程度和分布模式，(2) 确定髋臼缘骨化与髋关节旋转异常之间的关系。
回顾性分析 2021 年 1 月至 2022 年 5 月期间在我院行髋关节镜手术治疗 FAIS 的患者。如果可获得手术髋关节和同侧股骨远端的术前计算机断层扫描 (CT) 图像，以测量股骨和髋臼前倾角，则将患者纳入研究。在每个时钟位置的髋臼上半部分的冠状 CT 切片上评估髋臼缘骨化的存在和大小。检查髋臼缘骨化与髋关节旋转形态学放射学参数之间的关系。
共纳入 214 髋。167 髋（78%）发现髋臼缘骨化，最常见的位置为 10 点和 11 点。存在髋臼缘骨化的患者骨化大小平均为 4.6±1.6mm。9 点位置最大（4.9±2.2mm），从前向后逐渐减小。Logistics 回归分析发现年龄与后发性骨化的发生有关（p=0.002）。线性回归分析发现年龄（p=0.049）和男性（p<0.001）与骨化的大小显著相关。颅侧联合前倾角增加的患者比正常和减小的颅侧联合前倾角患者的后发性骨化更大（4.2±2.9 比 3.1±2.5mm，p=0.016；4.2±2.9 比 2.5±2.4mm，p=0.005）。
增加的联合前倾角与更大的髋臼缘骨化有关。髋臼缘骨化的存在和大小与年龄较大和男性呈正相关。
III 级。
