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RISS 인기검색어
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- 저자 : 조덕연(JDuck Yun Cho) (검색결과 1 건)
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이중명(Joong Myung Lee),박용순(Yong Soon Park),조덕연(JDuck Yun Cho) 대한고관절학회 1999 Hip and Pelvis Vol.11 No.3
For a comparison study, patients with bilateral late-stage osteonecrosis were prospectively and ran-domly treated with bilateral total hip arthroplasty(THA) using two different types of the cementless Spotorno (CLS) femoral stem in same patients. In each patient, a standard femoral stem, which had a rough blasted surface was used on one side, while an identical stem with a proximal hydroxyapatite (HA) coating was used on the other side. The Harris-Galante II cup was used on the acetabular side. The same-sized prostheses were used bilaterally. Clinical & radiologic results of 18 patients (36 hips) were evaluated after a minimum follow-up of five years. According to Merle d ’Aubigne and Postel score modified by Charnley, there was no significant difference between the two groups. Pain was improved from an average of 2.5 to 5.6. The movement of hip was improved from an average of 3.5 to 5.6. The ability to walk was improved from an average of 3.8 to 5.7. The HA-coated stem showed a proximal radiolucent line in 1 hip, which was stabilized by the endosteal bone formation in the middle & distal zones. The reactive line of the distal zone, which had been shown in the short term follow up study (2 years) of the HA coated stem, had changed to endosteal bone formation. The endosteal bone formation was not significantly different between the two groups and evenly distributed around the middle & distal zones(p>0.05). The other parameters, also showed no statically significant differences between the two groups. A blasted surface itself appeared to be enough to get a good fixation. We think that HA coating should be used with care in any previously used designs, due to possible long-term problems.
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