[Comparison of heterotopic ossification between femoral head reconstruction and total hip arthroplasty in patients with ischemic necrosis of femoral head].
OBJECTIVE
To compare heterotopic ossification between femoral head reconstruction and total hip arthroplasty (THA) in patients with ischemic necrosis of femoral head (INFH).


METHODS
Between June 1994 and December 2004, the femoral heads were repaired in 1 005 patients with INFH,the total hip was replaced in 485 patients with INFH. The rate of heterotopic ossification was observed in 74 (Ficat II to IV stages) of 1 005 patients and 80 of 485 patients given THA to compared the results of the two methods.


RESULTS
These patients were followed up 2 to 10 years(6.5 years on average). The rates of heterotopic ossification were 5.4% (4/74) and 22.5% (18/80), respectively. There was statistically significant difference between two operative methods (P<0.01).


CONCLUSIONS
The rate of heterotopic ossification of femoral head reconstruction is lower than that of THA, so femoral head reconstruction is a better operative method for young patients and THA is suitable for old patients.
Liu
Yupeng
Y
Department of Orthopedics, Zhongshan Hospital, Dalian University, Dalian Liaoning, 116001, P.R. China. lyp9748@dl.cn
Zhao
Dewei
D
Cui
Xu
X
D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D005271:Femur Head Necrosis / Q000601:surgery*; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging / Q000209:etiology*; D011183:Postoperative Complications; D011859:Radiography; D019651:Plastic Surgery Procedures / Q000009:adverse effects*