Abstract
Fifty cadaver digits were used to study the mechanical properties of five different methods of pulley reconstruction and the effectiveness of three different pulley reconstructive arrangements in restoring a normal relationship between tendon excursion and joint motion. All reconstructed pulleys showed less stiffness and more displacement before failure than normal intact pulleys. Although reconstruction using a length of another tendon woven through the remaining fibrous rim of the pulley and both double and triple tendon graft loops around bone absorbed more energy to failure than a normal pulley, only the triple loop around bone could withstand as much load before failure as a normal pulley. No reconstruction restored a normal tendon excursion/joint motion relationship, but reconstruction of the A2 and A4 pulleys restored a more normal relationship than either the "belt loop" reconstruction or a combination belt loop, A2 and A4 reconstruction.
Original language | English (US) |
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Pages (from-to) | 278-282 |
Number of pages | 5 |
Journal | Journal of Hand Surgery |
Volume | 14 |
Issue number | 3 |
DOIs | |
State | Published - Aug 1989 |
ASJC Scopus subject areas
- Surgery
- Transplantation