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KMID : 0386720050170040223
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Journal of the Korean Hip Society
2005 Volume.17 No. 4 p.223 ~ p.229
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Core Decompression and Impaction Bone Graft in Osteonecrosis of the Femoral Head
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Jung Kwang-Hwan
Chang Jae-Suk
Choi Young-Rock
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Abstract
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Purpose: To analyse the results of a core decompression and impaction bone graft according to necrosis size and location.
Materials and Methods: Between Jan. 1996 and Sep. 2002, 64 patients (95 hips) who were followed up for a
minimum of 2 years were studied. Forty-six (71 hips) were male and 18 (24 hips) were female. The mean age was
36.6 (16-53) years and the average follow up was 43.3(24~95) months. The surgical results were analysed using χ2-
test and Fisher’s exact test according to necrosis size and location.
Results: Clinical progression was seen in 21 cases (22.1%), of which 17 cases had a lesion more than 50%. All 21 cases were located laterally. Radiologic progression was seen in 51 cases (53.7%), of which 28 cases had a lesion size involving more than 50%, and 50 cases were located laterally. Clinical failure was seen in 16 cases (16.8%), of which
13 cases had a lesion size involving more than 50%, and all 16 cases were located laterally.
Conclusion: 1. The surgical results were worse when the lesion was larger and laterally positioned. 2. Radiologic
progression was seen in 53.7% of cases, but conversion to total hip arthroplasty was seen in 16.8%, which was due to
increased strength of femoral head. 3. To confirm these study results, longer follow up study is needed.
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KEYWORD
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Femoral head, Osteonecrosis, Core decompression, Impaction bone graft, Size, Location
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