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Clinicoanatomical study of forearm flap. On the forearm vessels.

1992; Japanese Society of Oral and Maxillofacial Surgeons; Volume: 38; Issue: 1 Linguagem: Inglês

10.5794/jjoms.38.60

2186-1579

Harunobu Shima,

Reconstructive Facial Surgery Techniques

Clinicoanatomical observations were made of forearm vessels that are important to vascular anastomosis of a free forearm flap. Results of these observaticns are reported. This study included morphological and morphometrical examinations of superficial vein variations, confluence of radial and ulnar vein variation, radial artery orgin, cutaneous branches of the radial artery, inner diameters of the vessels and venous valves in forearm vessels from 52 cadavers. The following results were obtained:1. Morphological examination: 1) Type I (the cephalic vein runs in a proximal direction outside of the radial artery and has a projection, the median cubital vein) account for 81.3%. 2) Type II (two radial veins and two ulnar veins join to form two brachial veins) account for 70.0%. 3) Most valves were Bicuspid. 4) Venous valves appeared most often at confluences.2. Morphometric examination: 1) Inner diameter of superficial veins measured using vascular anastomosis was2.0±1.5mm in A (cephalic veins 5cm proximal from the interepicondylar line), 3.2±1.3mm in B (basilic veins 5cm proximal from the interepicondylar line), 1.9±1.2mm in C (cephalic veins at the interepicondylar line), 1.8±1.1mm in D (median cubital veins at the interepicondylar line. 2) Inner diameter of venae comitantes measured using vascular anastomosis was 1.6±0.5mm. 3) Inner diameter of the radial artery measured using vascular anastomosis was 2.3±0.5mm. 4) The maximum length of superficial veins that could be used as vascular pedicles was28.7±4.6cm. 5) The maximum length of radial artery could be used as a vascular pedicle was 18.1±1.7cm. 6) In individual cases, there were no significant differences in vessel inner diameters or lengths between right and left sides.