Seiler J G, Reddy A S, Simpson L E, Williams C S, Hewan-Lowe K, Gelberman R H
Department of Orthopaedic Surgery, Emory University, Atlanta, GA, USA.
J Hand Surg Am. 1995 May;20(3):492-5. doi: 10.1016/S0363-5023(05)80115-7.
Recent experimental studies have shown that intrasynovial donor tendons have the capacity to heal with minimal alteration in the gliding surface when grafted to an intrasynovial location. In order to evaluate the flexor digitorum longus of the foot as a potential matched donor tendon for use in flexor tendon grafting, we dissected 15 feet (75 toes) and 10 hands (50 fingers) to determine the intrasynovial lengths of the flexor digitorum longus and flexor digitorum profundus and to determine a method of tendon graft harvest. Specimens were taken from the intrasynovial portion of each tendon for evaluation by light and electron microscopy. The intrasynovial tendons of the hand and foot were similar in vascularity, cellularity, gliding surface, and ultrastructure. The flexor digitorum longus tendon of the foot was a mean length of 12 cm to the area of tendon confluence in the midfoot, which will usually provide enough tendon length for grafting from the distal phalanx to the palm of the hand. Because of the difference in length of the synovial sheaths of the fingers and toes, some extrasynovial tendon will be transferred to the synovial space when a flexor digitorum longus tendon is used.
最近的实验研究表明，当滑膜内供体肌腱移植到滑膜内位置时，其能够在滑动表面变化最小的情况下愈合。为了评估足部的趾长屈肌腱作为屈肌腱移植潜在匹配供体肌腱的可能性，我们解剖了15只足（75个趾）和10只手（50个手指），以确定趾长屈肌腱和指深屈肌腱的滑膜内长度，并确定肌腱移植获取的方法。从每条肌腱的滑膜部分取材，进行光镜和电镜评估。手和足部的滑膜内肌腱在血管分布、细胞构成、滑动表面和超微结构方面相似。足部的趾长屈肌腱至中足肌腱汇合处的平均长度为12 cm，这通常可为从远节指骨到手掌的移植提供足够的肌腱长度。由于手指和脚趾滑膜鞘长度的差异，当使用趾长屈肌腱时，一些滑膜外肌腱会被转移到滑膜间隙。
