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전방십자인대 재건술시 골 - 슬개건 - 골에 대한 고정력의 생역학적 연구 - 간섭나사못과 사다리꼴 모양 골편의 고정력 비교연구 -
이병일,하상선,신병준,나수균,최창욱 ( Byung Ill Lee,Sang Sun Ha,Byung Joon Shin,Soo Kyoon Rah,Chan Uk Choi ) 대한슬관절학회 1994 대한슬관절학회지 Vol.6 No.2
Reconstruction of the ACL remains ane of the most challenging problem on orthopaedic knee surgery. Interference fit pull-ouit strength is ndent on bone qoality, compression of the bone plug in osseous tunnel, length of the screwthread-bone contact, dimction of the ligamentous foree. Rigid fixation is pmbalby the most important in the success of procadures dming tbe initiat stages af healing. The purpose of this study was to com the maximum tensile strength, stiffness and linear load between 7mm x 20mm, 9mm x 20mm interference serew and trapezoid bone plug fixation mefhods with outside-in technique in femoral tunnel. The results were as follows. 1)7mm interference screw(N=15) pull-out tensile strength tests showed 805.35+-54,61(N) maximum tensile strength, 83.33+-10,98(Nfmm)stiffness and lincar load 685,99+-86.32(N), respectively. The failure sites were all femoral tunnel 2) 9mm interference screw(hb10) pull-out tensile strength tests showed 886.91+-46.16(N) maximum tensile strength, 69.20+-6.61(N/mm)stiffness and linear load 740.93+-103.10(N), respectively. The failure sites were aU femoral tunnel area(NR), except one case of midsubstance. 3) Trapezoid bone plug(N=10)pull-out tensile strength tests showed a maximum tensile strength 1046.30+-32.90(N), stiffness 72.06+-4.14(N/mm), and linear load 774.57+-107.26(N), respectively, The failure sites were all femoral tunnel area(N=9) which were fracture and separation on the epiphyseal scar line, except one case of substance. There was no significant difference between 7mm interference screw and 9mm interference screw but the trapezoid plug fixation shows sjgnificantly higher values than interference screw fixation in terms of maximum tensile strength, stiffness and linear load(P<D.0001),