Biomechanical analyses of the XXXX flexor @entity924 models in the hand: A cadaveric study.

@entity1 @entity30338 @entity924 @entity6520 @entity1159 @entity85 @entity121
UNASSIGNED: @entity1 with longstanding trigger finger may develop @entity1159 at the proximal interphalangeal (PIP) joint that persists even after division of the A1 pulley. The purpose of this study was to explore the hypothesis that @entity6520 in advanced trigger finger is caused by severe adhesion between the flexor digitorum superficialis (FDS) and the @entity30338 ( @entity30338 ) tendons. Ten freshly frozen cadaveric hands were used in the experiments. After preparation of the extrinsic flexor, extrinsic extensor, and @entity121 , we applied weights to the flexor tendons and minimal tension to the extrinsic extensor and @entity121 . We then measured the initial flexion angles of the metacarpophalangeal (MCP) and @entity6520 . Next, we measured the flexion angles of the MCP and @entity6520 as increasing tension was applied to the extrinsic extensor and @entity121 , respectively. We repeated these experiments after constructing flexor @entity924 model. The @entity6520 were greater in the adhesion model, as were the average tensions required for full extension of these joints. Our results suggest that adhesion between two flexor tendons contributes to progression of @entity85 in the PIP joint.    2014 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 9999:XX-XX, 2014.
