Hechtman K S, Tjin-A-Tsoi E W, Zvijac J E, Uribe J W, Latta L L
University of Miami, School of Medicine, Department of Orthopaedics and Rehabilitation, Coral Gables, Florida, USA.
Am J Sports Med. 1998 Sep-Oct;26(5):620-4. doi: 10.1177/03635465980260050401.
A reconstruction of the anterior bundle of the ulnar collateral ligament of the elbow using bone anchors was compared regarding strain and valgus load strength with the intact ulnar collateral ligament and the reconstructed ulnar collateral ligament using bone tunnels. In both normal and reconstructed elbows, the anterior band and posterior band were tight during only a portion of the range of motion. Toward extension, the mean peak strain in the anterior band was tight for the normal and bone anchor groups, but lax in the bone tunnel group. Toward extension, the mean peak strain in the posterior band was lax in all elbows. Toward flexion, the strain in the anterior band was lax in the normal and bone anchor groups, but tight in the bone tunnel group. The mean of the peak strains for the posterior band toward flexion was tight for all elbows. Mean valgus load strength of normal elbows was 22.7 +/- 9.0 N.m. The bone tunnel and bone anchor mean strengths were 76.3% and 63.5%, respectively, of normal elbow strength. We concluded that the bone anchor reproduced the normal anatomy and mechanical function of the ulnar collateral ligament more closely than the bone tunnel, and that both reconstruction methods were significantly weaker than the normal ulnar collateral ligament. However, we found no significant difference in reconstruction strength between bone anchor and bone tunnel.
采用骨锚重建肘关节尺侧副韧带前束，并将其与完整尺侧副韧带以及采用骨隧道重建的尺侧副韧带在应变和外翻负荷强度方面进行比较。在正常肘关节和重建肘关节中，前束和后束仅在部分运动范围内处于紧张状态。在伸展过程中，正常组和骨锚组前束的平均峰值应变处于紧张状态，而骨隧道组则松弛。在伸展过程中，所有肘关节后束的平均峰值应变均松弛。在屈曲过程中，正常组和骨锚组前束的应变松弛，而骨隧道组则紧张。所有肘关节后束在屈曲时的峰值应变平均值均紧张。正常肘关节的平均外翻负荷强度为22.7±9.0N·m。骨隧道和骨锚的平均强度分别为正常肘关节强度的76.3%和63.5%。我们得出结论，与骨隧道相比，骨锚能更接近地重现尺侧副韧带的正常解剖结构和力学功能，并且两种重建方法均明显弱于正常尺侧副韧带。然而，我们发现骨锚和骨隧道在重建强度上无显著差异。
