title: A clinical comparative study of anatomic parameters before and after total hip replacement on congenital dysplasia.
abstract: [Purpose] To study preoperative and postoperative hip circumference data of various types of congenital dysplasia of the hip treated with total hip replacement, including the femoral offset, femoral neck length, height, and hip abductor arm parameters. [Subjects and Methods] This study included seventy-eight cases of congenital dysplasia of the hip (I-III type). Furthermore, four parameters were measured, including the preoperative and postoperative femoral offset. Statistical data analysis was performed using the SPSS 13.0 software. [Results] The femoral offset was 33.3 ± 8.4 mm (preoperative) and 39.1 ± 7.1 mm (postoperative). The femoral head height was 59.5 ± 8.7 mm (preoperative) and 68.8 ± 11.0 mm (postoperative). The femoral neck length was 50.8 ± 10.8 mm (preoperative) and 61.5 ± 10.4 mm (postoperative). The hip abductor arm was 54.3 ± 9.6 mm (preoperative) 64.7 ± 10.1 mm (postoperative). The preoperative and postoperative parameters showed statistical differences. Furthermore, no significant differences were evidenced when comparing the postoperative hip parameters with the normal data parameters. [Conclusion] Total hip replacement on congenital dysplasia of the hip could lead to the rebuilt of an almost normal physiological anatomy for each hip case (type I-III).
authors: Department of Orthopedics, Lishui People's Hospital of Zhejiang (The sixth affiliated hospital of Wenzhou Medical University), China.
authors: Ziqiang
authors: Z
authors: Huang
authors: Department of Orthopedics, Lishui People's Hospital of Zhejiang (The sixth affiliated hospital of Wenzhou Medical University), China.
authors: Yonggang
authors: Y
authors: Zhou
authors: Department of Orthopedics, Lishui People's Hospital of Zhejiang (The sixth affiliated hospital of Wenzhou Medical University), China.
authors: Wei
authors: W
authors: Chai
authors: Department of Orthopedics, The Hospital of PLA, China.
authors: Weiping
authors: W
authors: Ji
authors: Department of Orthopedics, The Hospital of PLA, China.
authors: Guopeng
authors: G
authors: Cui
authors: Department of Orthopedics, The Hospital of PLA, China.
authors: Miaoqun
authors: M
authors: Ma
authors: Department of Rehabilitation, The Center Hospital of Lishui, China.
authors: Yin
authors: Y
authors: Zhu
keywords: Congenital dysplasia of the hip; Femoral neck; Hip abductor arm