2014年3月24日 · The oblique annular pulley is located between the first annular and second annular pulleys. The oblique annular pulley courses distally from the ulnar side of the base of …

2020年6月7日 · Oblique pulley – 1 associated with the thumb. The main role of the flexor pulley system is to hold the flexor tendons against the phalanges; preventing them from pulling away …

2024年11月22日 · most important pulley in thumb . functions like cruciate pulley in fingers. in fingers A1-A2-C1-A3. in thumb A1-Av-oblique-A2. facilitates full excursion of FPL. ... Type III - …

2018年6月27日 · The pulley system of thumb thus consisted of four pulleys: A1, oblique, A2, and Av pulley placed between A1 and oblique. Pulley system of thumb has been classified into four …

2001年6月14日 · In sectioning experiments they concluded that the oblique pulley is the most important pulley in the thumb and facilitates the full excursion of the flexor pollicis longus. The …

In 1977 Doyle and Blythe5 studied the pulley system of the thumb and showed 1 oblique and 2 annular pulleys (A1 and A2). In sectioning experiments they con-cluded that the oblique pulley …

Four different pulley categories were identified: type I (n = 5), type II (n = 29), type III (n = 29), and type IV (n = 12). The variable annular pulley was present in 70 of 75 hands (93%) in 1 of 3 …

2022年10月24日 · RESULTS: Consistent with accepted thumb anatomy, all specimens demonstrated A1, Aob, and A2 pulleys and 20/24 (83.3%) had Avariable pulleys; one thumb …

To examine the precise conformation of the annular and oblique pulleys of the thumb flexor sheath, anatomic dissections were undertaken on 14 hands. In all specimens a distinct pulley …

Pulleys are fibrous bands anchoring tendons to underlying structures. In the long fingers, annular pulleys (A1–A5) and cruciate pulleys (C1–C4) guide tendon movement and increase …