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AML(Anatomical Medullary Locking) 대퇴 스탬을 이용한 무시멘트 고관절 치환술
문경호 ( Kyoung Ho Moon ),박승림 ( Seung Rim Park ),김형수 ( Hyoung Soo Kim ),강준순 ( Joon Soon Kang ),권순철 ( Soon Cheul Kwon ) 대한고관절학회 1994 Hip and Pelvis Vol.6 No.1
The author tried to get result after clinical and radiological studies with 39 patients (50 hip Joints) who have been operated non-cemented bipolar hemiarthroplasty or total hip replacement arthroplasty with using AML(Courtesy Depuy, Warsaw, Ind. ) femoral stem and who could be followed for the period of more th two years(average 39 months) at the INHA University Hospital, Dept. Of Orthopaedic Surgery from the Feb, 1989 through the Feb, 1992. The results were as rollows 1. There were 41 cases of press-fit on the radiogram after operation, 9 cases of no press fit. 2. Pre-operative Harris hip score was average 37. 4, but it was raised to 82. 9 after operation, Amomg them, Harris hip score for the press fit group was 86. 1 ynd those of no press fit group was 79.6, it shows significant statistical differences (p<0. 05). 3. The vetical subsidence, calcar resorption and reactive white lines were relatively higher incidence at the case of no press fit femoral stem, but here were no significant statistical meanings compared with press fit group(p>0.05). 4. The formation of spot welds were shown higher frequency at the press fit group than no press fit group and had statistically significances(p<0.05). 5. The 39(78%) cases were assessed with bony remodeling by the stress shielding effect and press fit group was on the 3rd degree stress shield effect which was nuch higher in those of no press fit, it shows significant statistical meanngs(p<0.05) 6. The fication with bony ingrowth which was estimated through the final radiologic evaluations, were 25 cases (50%), stable fibrous ingrowth fication were 23 cases(46%), and unstable fication were 2 cases (4%). The higher incidences of bony ingrowth fication were shown ft the cases of press fit stem, and stable fibrous ingrewth fication for the no press fit of it. There were significant statistical meanings between the incidences(p<0.05). According to the conclusion of this retrospective study, the noncemented hip arthroplasty using AML femoral stem in initial press fit froup had much better clinical results than no press fit group.