TY - JOUR
T1 - Flexor tendon-pulley interaction after annular pulley reconstruction
T2 - A biomechanical study in a dog model in vivo
AU - Nishida, J.
AU - Seiler, J. G.
AU - Amadio, P. C.
AU - An, K. N.
N1 - Funding Information:
The flexor pulley system of the finger serves to restrain bowstringing of the flexor tendons across the volar aspect of the flexed finger, t-3 Successful reconstruction of flexor tendon injury in the finger depends not only on repair of the tendon itself, but also on repair or preservation of the pulley system. It is generally agreed that the A2 and A4 pulleys need to be reconstructed or retained when the flexor tendon system is reconstructed. 1-3 A critical factor contributing to poor function following tendon repair or reconstruction is postopera- From the Biomechanics Laboratory and Department of Orthopedic Surgery, Mayo Clinic and Mayo Foundation, Rochester, MN; and the Department of Orthopaedic Surgery, Emory University, Atlanta, GA. Received for publication July 15, 1996; accepted in revised form December 10, 1997. No benefits in any form have been received or will be received from a commercial party related directly or indirectly to the subject of this article. Supported by grants from the Mayo Foundation and Emory University. Reprint requests: Peter C. Amadio, MD, Biomechanics Laboratory, Mayo Clinic, 200 First St SW, Rochester, MN 55905. Copyright O 1998 by the American Society for Surgery of the Hand. 0363-5023/98/23A02-00 1553.00/0 tive adhesions. 4-9 Excursion resistance between a tendon and pulley immediately after surgery may contribute to adhesion formation by limiting the ability of the tendon to glide (Seller et al., Orthop Res Soc Trans 1995;20:136 \[abstr\]). Pulley reconstruction using extrasynovial sources produces greater resistance to gliding than similar reconstructions using intrasynovial sources in vitro, but there have been no published reports concerning the measurement of gliding resistance between the tendon and reconstructed pulley in vivo.
PY - 1998
Y1 - 1998
N2 - The excursion resistance between the canine flexor digitorum profundus tendon and A2 pulley was compared after pulley reconstruction using tendon grafts of either intrasynovial or extrasynovial origin at 10 days, 3 weeks, and 6 weeks after surgery. The changes over time in the underlying flexor digitorum profundus tendon after pulley reconstruction were also evaluated. The excursion resistance for both types of pulley reconstruction was significantly greater than that of the control group at all time periods. The excursion resistance of the extrasynovial tendon graft reconstruction was greater than that of intrasynovial pulley reconstruction at all time periods. In conclusion, pulley reconstruction with intrasynovial tendon grafts may facilitate tendon gliding after surgery.
AB - The excursion resistance between the canine flexor digitorum profundus tendon and A2 pulley was compared after pulley reconstruction using tendon grafts of either intrasynovial or extrasynovial origin at 10 days, 3 weeks, and 6 weeks after surgery. The changes over time in the underlying flexor digitorum profundus tendon after pulley reconstruction were also evaluated. The excursion resistance for both types of pulley reconstruction was significantly greater than that of the control group at all time periods. The excursion resistance of the extrasynovial tendon graft reconstruction was greater than that of intrasynovial pulley reconstruction at all time periods. In conclusion, pulley reconstruction with intrasynovial tendon grafts may facilitate tendon gliding after surgery.
UR - http://www.scopus.com/inward/record.url?scp=0032468078&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032468078&partnerID=8YFLogxK
U2 - 10.1016/S0363-5023(98)80127-5
DO - 10.1016/S0363-5023(98)80127-5
M3 - Article
C2 - 9556269
AN - SCOPUS:0032468078
SN - 0363-5023
VL - 23
SP - 279
EP - 284
JO - Journal of Hand Surgery
JF - Journal of Hand Surgery
IS - 2
ER -