Rees R J, Hill S O, Cassar-Pullicino V, Cool P
The Robert Jones & Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire UK.
Hip Int. 2004 Jan-Mar;14(1):24-27. doi: 10.1177/112070000401400103.
Degenerative subchondral acetabular cysts are a common finding in patients with primary osteoarthritis of the hip. These mainly occur in the superior weight-bearing region of the acetabulum. The aim of this study was to identify the presence and distribution of degenerative acetabular cysts in patients with primary osteoarthritis of the hip. The radiographs of 100 consecutive patients who had a total hip replacement for primary osteoarthritis of the hip were retrospectively analyzed. Eighty-two patients had degenerative subchondral cysts. Of these 44% were solitary. All the cysts occupied the superior zone of the acetabulum with a proportion extending into the middle zone. None involved the inferior zone, the medial acetabular wall. The radiological presence of an acetabular cyst in the inferior zone (medial acetabular wall) warrants further investigation, and should not be presumed to represent a feature of osteoarthritis, even if osteoarthritis is present. (Hip International 2004; 14: 24-7).
髋臼软骨下退行性囊肿是原发性髋关节骨关节炎患者的常见表现。这些囊肿主要出现在髋臼的上负重区。本研究的目的是确定原发性髋关节骨关节炎患者髋臼退行性囊肿的存在情况及分布。对100例因原发性髋关节骨关节炎行全髋关节置换术的连续患者的X线片进行回顾性分析。82例患者有软骨下退行性囊肿。其中44%为单发囊肿。所有囊肿均位于髋臼上部区域，部分延伸至中部区域。无一例累及髋臼下部区域及髋臼内侧壁。髋臼下部区域（髋臼内侧壁）出现囊肿的影像学表现需要进一步检查，即使存在骨关节炎，也不应将其视为骨关节炎的特征。（《国际髋关节杂志》2004年；14：24 - 7）
