Lillmars S A, Bush D C
Department of Orthopaedics, Geisinger Medical Center, Danville, Pa. 17822.
J Hand Surg Am. 1988 Jan;13(1):115-9. doi: 10.1016/0363-5023(88)90213-4.
A rupture occurred in the substance of an apparently normal flexor digitorum profundus tendon of a left small finger. It was associated with a previously undescribed anomalous flexor digitorum superficialis of the brevis type to the same finger. Clinical reports of 20 anomalous flexor digitorum superficialis muscles were found in the literature; all but one were on the right side or bilateral and occurred predominantly in females. Three cases were of the brevis type and all involved the index finger. Although the precise reason for rupture is not known we have speculated that the anomalous superficialis may have given rise to a deficient vinculum longus to the profundus predisposing it to failure.
一名左小指看似正常的指深屈肌腱实质发生断裂。它与同一手指先前未描述过的短肌型异常指浅屈肌有关。文献中发现了20例异常指浅屈肌的临床报告；除1例之外均为右侧或双侧，且主要发生在女性。3例为短肌型，均累及示指。尽管断裂的确切原因尚不清楚，但我们推测异常的指浅屈肌可能导致指深屈肌的腱纽发育不全，使其易于出现功能障碍。
