Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (26): 4785-4787.doi: 10.3969/j.issn.1673-8225.2011.26.009

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Femoral head autograft for acetabular reconstruction in cementless total hip arthroplasty for developmental hip dysplasia

Gao Wei-qiang, Chen Jing-yong, Cheng Jun, Li Zhong, Chi Lei-ting   

  1. Department of Hip Trauma, Sichuan Provincial Orthopedics Hospital, Chengdu  610041, Sichuan Province, China
  • Received:2010-12-07 Revised:2011-03-09 Online:2011-06-25 Published:2011-06-25
  • Contact: Chen Jing-yong, Chief physician, Department of Hip Trauma, Sichuan Provincial Orthopedics Hospital, Chengdu 610041, Sichuan Province, China
  • About author:Gao Wei-qiang★, Master, Physician, Department of Hip Trauma, Sichuan Provincial Orthopedics Hospital, Chengdu 610041, Sichuan Province, China gwq158@163.com

Abstract:

BACKGROUND: Patients with Crowe Ⅱ, Ⅲ, Ⅳ type of hip dysplasia have poorly developed true acetabulum and often present with lateral wall defects due to femoral head erosion, so most patients require autologous bone graft and artificial acetabular reconstruction.
OBJECTIVE: To evaluate the clinical effect of bulk femoral head autograft for acetabular reconstruction in cementless total hip arthroplasty (THA) for developmental hip dysplasia (DDH).
METHODS: From March 2007 to November 2009, THA was performed for 15 patients (15 hips) with osteoarthritis secondary to DDH. The length difference was (2.7±0.8) cm between two lower limbs of the unilateral DDH patients. The Harris scores were (41.6±12.8) points preoperatively. The standard procedure of THA was performed in 15 patients (15 hips), the structural femoral head autograft for restoring normal level of rotating center of the acetabulum in other patients.
RESULTS AND CONCLUSION: The incision healed by first intention in all patients. The duration of follow-up ranged from 1 to 2years (average 1 year). The X-ray films showed bony healing between the grafted bone and the ilium in all patients. At last follow-up, the length difference was (0.8±0.3) cm between two lower limbs and the Harris score was (89.3±6.5) points, showing statistically differences (P < 0.05) when compared with preoperation. The X-ray films showed no signs of dislocation, absorption and collapse of the grafted bone. THA combined with structural femoral head autograft for patients with osteoarthritis secondary to DDH can obtain favorable results. This method can restore normal level of rotating center of the acetabulum, provide reliable acetabular fixation, and restore acetabular bone stock in patients with Crowe type Ⅱ and type Ⅲ DDH.

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