Abstract：Objective To observe the position and size of acetabular bony cyst in patients with hip osteoarthritis secondary to developmental dysplasia of the hip (DDH), and provide a basis for the acetabular reconstruction during total hip replacement(THR). Methods Thirty-eight patients (45 hips) with hip osteoarthritis secondary to DDH were retrospectively observed, who performed THR in our hospital from June 2007 to November 2008. The patients with primary hip osteoarthritis in this period in our hospital performed THR were treated as the control group. The position and the size of acetabular bony cyst were evaluated in the hip anteroposterior film and hip helical computed tomography. Results There were 16 acetabular bone cyst in hip anteroposterior film, and 21 acetabular bone cyst in the helical CT scan, in the patients with DDH. And its area ranged (4.7±5.1)mm2 in the frontal plane of the acetabula. The acetabular bony cyst presented in 6 acetabula in hip anteroposterior film, and in 10 acetabula in the helical CT scan, and its area ranged (1.3±2.4)mm2 in the frontal plane of the acetabula, in the control group. The incidence and the area of acetabular bony cyst had a significant difference (P＜0.05) between the two groups. Conclusions There is a high incidence of acetabular bony cyst in patients with hip osteoarthritis secondary to DDH. Bony cyst should be coped with in the process of acetabular reconstruction, or may influence the stability of acetabular prosthesis.
刘瑞宇 王坤正 尹龙斌 高飞 党晓谦 柏传毅. 髋关节发育不良髋臼骨囊性变的特征[J]. 中华解剖与临床杂志, 2014, 19(1): 7-10.
Liu Ruiyu, Wang Kunzheng, Yin Longbin, Gao Fei, Dang Xiaoqian, Bai Chuanyi.. Characteristics of acetabular bony cyst in patients with developmental dysplasia of the hip. Chinese Journal of Anatomy and Clinics, 2014, 19(1): 7-10.
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2014, Vol. 19 
