Journal ArticleDOI
A mechanical study of six digital pulley reconstruction techniques: Part I. Mechanical effectiveness.
TLDR
A laboratory study on fresh-frozen human cadaver limbs compared six types of flexor tendon pulley reconstruction in the fingers, finding the Karve reconstruction was most effective at 108.2%, which was significantly different from the other five reconstructions (p less than 0.01).Abstract:
A laboratory study on fresh-frozen human cadaver limbs compared six types of flexor tendon pulley reconstruction in the fingers. The reconstructions used were those described by (1) Bunnell, (2) Karev, (3) Weilby, and (4) Lister, and two types developed by us that have not been previously described. The pulleys were studied in specific configurations to determine their effectiveness in transforming tendon excursion into finger flexion. In each finger, comparison was made between the amount of tendon excursion required for full flexion with an intact pulley system versus the various types of reconstructed pulleys. The ratio of these two values was defined as the mechanical effectiveness of the pulley reconstruction. The Karev reconstruction was most effective at 108.2%, which was significantly different from the other five reconstructions ( pread more
Citations
More filters
Journal ArticleDOI
Pulley Injuries in Rock Climbers
TL;DR: Pulley injuries were the most frequent injuries in rock climbers, and whereas grade 1-3 injuries respond well to conservative treatment, grade 4 injuries require surgical repair.
Journal ArticleDOI
Flexor tendon repair and rehabilitation: state of the art in 2002.
TL;DR: A protocol for treatment of intrasynovial flexor tendon lacerations emphasizing a strong initial repair followed by the application of postoperative passive motion rehabilitation is presented.
Journal ArticleDOI
Injuries to the finger flexor pulley system in rock climbers: current concepts
Volker Schöffl,Isabelle Schöffl +1 more
TL;DR: Closed traumatic ruptures of finger flexor tendon pulleys began to be recognized specifically over the past several decades and are seen more commonly in rock climbers.
Journal ArticleDOI
Biomechanical model for the determination of the forces acting on the finger pulley system
TL;DR: A mathematical model proposed by Hume et al., 1991 for the determination of the forces acting on the A2 and A4 pulley was used and enabled to give the best possible placement for a pulley graft after pulley rupture.
Journal ArticleDOI
Disruption of the finger flexor pulley system in elite rock climbers.
TL;DR: On follow-up magnetic resonance images, bowstringing remained unchanged in group A but was reduced in all patients in group B, and good subjective results were seen in both groups.
References
More filters
Journal ArticleDOI
Tendon excursion and moment arm of index finger muscles
TL;DR: Tendon excursions during rotation of individual index finger were recorded continuously throughout the joints' ranges of motion to study intrinsic and extrinsic muscles during flexion--extension and abduction--adduction functions.
Journal ArticleDOI
An investigation of the relationship between displacements of the finger and wrist joints and the extrinsic finger flexor tendons
TL;DR: The results indicate that the tendons displace in relation to joint positions as described by that Landsmeer model in which the tendon is depicted as sliding over the curved articular surface of the proximal bone of the joint.