Davidson P A, Pink M, Perry J, Jobe F W
Centinela Hospital Medical Center, Biomechanics Laboratory, Inglewood, California 90301, USA.
Am J Sports Med. 1995 Mar-Apr;23(2):245-50. doi: 10.1177/036354659502300220.
To describe the relationship of the pronator teres, flexor carpi radialis, flexor digitorum superficialis, and flexor carpi ulnaris muscles to the medial collateral ligament at 30 degrees, 90 degrees, and 120 degrees of elbow flexion, we dissected 11 cadaveric specimens. The flexor carpi ulnaris muscle is the predominant musculotendinous unit overlying the medial collateral ligament in the majority of cases and is the only one at 120 degrees of elbow flexion. The flexor digitorum superficialis muscle is the only other significant contributor. The medial collateral ligament is the primary stabilizer of the medial elbow with elbow flexion greater than 30 degrees, as in throwing. The flexor carpi ulnaris muscle, because of its position directly over the medial collateral ligament, and the flexor digitorum superficialis muscle, with its near proximity and relatively large bulk, are the specific muscles best suited to provide medial elbow support. This is especially relevant to overhand throwing athletes who encounter extreme valgus force across the elbow during the cocking and acceleration phases of the throwing motion. Exercise and conditioning of the medial elbow musculature, specifically the flexor digitorum superficialis muscle and the flexor carpi ulnaris muscle, may prevent injury or assist in rehabilitation of medial elbow instability, especially in overhand throwing athletes.
为描述旋前圆肌、桡侧腕屈肌、指浅屈肌和尺侧腕屈肌在肘关节屈曲30度、90度和120度时与内侧副韧带的关系，我们解剖了11具尸体标本。在大多数情况下，尺侧腕屈肌是覆盖内侧副韧带的主要肌肉肌腱单位，并且是在肘关节屈曲120度时唯一覆盖该韧带的肌肉。指浅屈肌是另一个重要的影响因素。如在投掷动作中，当肘关节屈曲大于30度时，内侧副韧带是内侧肘部的主要稳定结构。尺侧腕屈肌因其直接位于内侧副韧带上方的位置，以及指浅屈肌因其接近且相对较大的体积，是最适合提供内侧肘部支撑的特定肌肉。这对于在投掷动作的引臂和加速阶段肘关节承受极大外翻力的过顶投掷运动员尤为重要。对内侧肘部肌肉组织，特别是指浅屈肌和尺侧腕屈肌进行锻炼和调节，可能预防损伤或有助于内侧肘部不稳定的康复，尤其是对于过顶投掷运动员。
