Abstract:

BACKGROUND: Traditional total hip replacement requires several revisions. The effect of reconstruction of femoral neck even femoral head by total hip replacement has been widely accepted.
OBJECTIVE: To compare the effect and complications of three hip replacements (collum femoris preserving, stemless hip prosthesis, and resurfacing arthroplasty) for avascular necrosis of the femoral head.
METHODS: A total of 67 cases of avascular necrosis of the femoral head were selected from January 2005 to July 2007. They were respectively treated with collum femoris preserving (n=22), stemless hip prosthesis (n=20), and resurfacing arthroplasty (n=25). All patients were followed up at least for 2 years. The patients were evaluated before, 1 and 2 years after surgery by Harris score, X-ray, hip and prosthesis-related bad events and revision.
RESULTS AND CONCLUSION: During the 2-year follow-up, no revision was performed in resurfacing arthroplasty group, and the Harris scores were significant greater than the other two groups (P < 0.05). One case was subjected to revision in stemless hip prosthesis, and 2 in collum femoris preserving. Results from the present study show that compared with collum femoris preserving and stemless hip prosthesis, resurfacing arthroplasty may be the more effective treatment for avascular necrosis of femoral head with less complications and lower rate of revision.