Gharravi Anneh Mohammad, Azandeh Saeed, Gholami Mohammad Reza, Nejad Daryoush Bijan
School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.
Department of anatomy, Faculty of Medicine, Ahvaz Jundishapour University of Medical Sciences (AJUMS), Ahvaz, Iran.
J Orthop Case Rep. 2013 Apr-Jun;3(2):32-4. doi: 10.13107/jocr.2250-0685.099.
Superficial palmar arch (SPA) is dominant vascular structure in palm of hand. In present study we described a case of Ulnar / Radiopalmar pattern of incomplete SPA in an Iranian cadaver. When the SPA is complete, the superficial palmer branches of the radial artery contribute to the ulnar artery. In incomplete type of SPA, there was no anastomosis between the ulnar and radial arteries (UA, RA).
In the present case, the brachial artery divided into RA and UA at the cubital fossa. There was no anastomosis between radial and ulnar arteries (RA, UA) in the palm of the hand. UA gave three palmar digital arteries; proper palmar digital artery and two common palmar digital arteries. RA gave proper palmar digital artery and arteria princeps pollicis.
Knowledge of anatomical variation of SPA is important for the hand surgical interventions and this is a very rare variation which can be easily tested clinically by Allen's test.
掌浅弓（SPA）是手掌的主要血管结构。在本研究中，我们描述了一例伊朗尸体中不完全掌浅弓的尺侧/桡掌型病例。当掌浅弓完整时，桡动脉的掌浅支汇入尺动脉。在不完全掌浅弓类型中，尺动脉和桡动脉之间没有吻合。
在本病例中，肱动脉在肘窝处分为桡动脉和尺动脉。手掌中桡动脉和尺动脉之间没有吻合。尺动脉发出三条掌指动脉；掌侧固有指动脉和两条掌侧总指动脉。桡动脉发出掌侧固有指动脉和拇主要动脉。
了解掌浅弓的解剖变异对手部手术干预很重要，这是一种非常罕见的变异，可通过艾伦试验在临床上轻松检测。
