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目的测量肱肌止点的相关数据,为临床准确、安全地放置冠突钢板提供解剖学依据。方法 8例正常新鲜成人肘关节标本,解剖观察肱肌止点的位置,并测量肱肌止点的长度、宽度、与内侧副韧带前束附着的间隙宽度及近端距离冠突尖的长度。结果肱肌止点大部分位于尺骨鹰嘴尖与冠突尖连线的内侧,长度为(21.79±2.70)mm,分深浅两头:浅头止点为腱膜组织,宽度(4.11±1.12)mm;而深头止点由两侧的腱膜和中间的肌肉构成,宽度(11.25±3.07)mm。其中,桡侧腱膜宽度(1.77±0.46)mm,尺侧腱膜宽度(2.75±0.57)mm,两者夹持的肌肉宽度(6.82±2.08)mm。肱肌止点与内侧副韧带前束附着的间隙宽度(4.14±0.49)mm,近端距离冠突尖的长度(9.30±1.51)mm。结论 (1)肱肌止点与内侧副韧带前束附着的间隙可用于放置尺骨冠突钢板。(2)松解肱肌深头止点的尺侧腱膜可使该间隙的宽度达到6.89mm,继续松解中间的肌肉可达到13.71mm,足以安放冠突钢板。
Objective To measure the data related to the point of cerclage and provide an anatomical basis for the accurate and safe placement of the capullum plate. Methods Eight adult normal elbow specimens were dissected to observe the position of the brachial muscle. The length and width of the brachial muscle, the width of the gap between the medial collateral ligament anterior bundle and the length of the coronoid process were measured. Results The majority of the brachialis points were located on the medial side of the ulnar olecranon and the coronoid process, with a length of (21.79 ± 2.70) mm, The deep end point by the two sides of the tendon and the middle of the muscle composition, width (11.25 ± 3.07) mm. Among them, the radial extensor aponeurosis width (1.77 ± 0.46) mm, the ulnar aponeurosis width (2.75 ± 0.57) mm, the muscle width of the two holding (6.82 ± 2.08) mm. The width of the gap (4.14 ± 0.49) mm between the brachial artery and the medial collateral ligament before attachment was 9.30 ± 1.51 mm. Conclusions (1) The space between the cerclage anchorage and the medial collateral ligament anterior bundle can be used to place the ulnar coronoid plate. (2) Release the ulnar aponeurosis at the deep point of the bivalve muscle to make the width of the gap reach 6.89mm, and continue to release the middle muscle to reach 13.71mm, which is enough to accommodate the coronoid plate.