The arterial trunk of the thumb-index digital collaterals

Abstract

This is a study of the origin of the palmar collateral arteries of the thumb and radial side of the index finger. The different patterns of the main trunk, the first palmar interosseous artery, in the commissure are discussed, together with the relations of its branches with those of the superficial palmar arch and its relations with the accessory fasciculi of the adductor pollicis and first dorsal interosseous muscles.

A Rare Finding In The Hand Irrigation

“…Either of these exceptional situations might yield misleading information during a standard Allen test (without confirmatory angiography or ultrasonography) that could potentially result in serious ischaemia following radial artery harvest such as that described by Parks et al 17 . The findings of Bianchi and Leiro support our assertion that in most cases a complete SPA is usually sufficient to provide adequate blood flow to the thumb in conjunction with a complete DPA 18,19 . There has been an increase in the use of radial artery for arterial bypass.…”

Infrequent disposition of the first metacarpal artery related to anastomoses of the superficial and deep systems of the hand

“…A similar disposition to ours is mentioned by Hashem et al [12], without indicating which metacarpal artery is substituted. Occasionally a second palmar metacarpal artery (2PMA) can supply a CPDA of the second space [2], forming another anastomosis between elements of the DPA and the SPA [3,4]. Coleman and Anson [7] say that the most developed artery destined for thumb should be called 1PMA.…”

“…In specimen 1, simultaneous arterial variations were observed, such as presence of the common trunk of origin of the CPDAs for the fifth and fourth spaces, similar to that reported by Singh et al [14] and Hasham [12]; however, these authors identified a different course of the common trunk, as well as an anastomosis of the CPDA of the fourth finger with a 4PMA, and a 2DIOA. This anastomosis reinforced the circulation of the second interdigital space instead of supplying it [3], giving rise to another indirect anastomosis between the SPA and DPA.…”

Disposición Infrecuente de la Arteria Digital Palmar Propia Radial del Índice

“…2C,D). En una comunicación previa (Bianchi & Leiro, 1987), se estableció que la 1AMTC, admitía más de un tipo de división, y entre ellas, la próxima a la primera comisura, en ambas ADPP del pulgar y la ADPPRI, era la menos frecuente, 2,5 %, motivo por el cual consideramos a la presente, como una variedad de división de esta última con origen de la ADPPRI en la ADPPUP. El trayecto de la 1AMTC es parecido al citado por Earley en relación con la posición debajo del tendón de inserción del FPB, del FPL y su vaina, y del fascículo accesorio del ADP, previo a la inserción en la vaina del FPL, quedando por delante de las inserciones de los manojos del ADP en el pulgar (Figs.…”