TY - JOUR
T1 - The effects of proximal load on the excursion of autogenous flexor tendon grafts
AU - Bischoff, R. J.
AU - Morifusa, S.
AU - Gelberman, R. H.
AU - Winters, S. C.
AU - Woo, Y.
AU - Seiller, J. G.
N1 - Funding Information:
Recent experimental studies have demonstrated tissue-specific differences in the repair responses of From the Department of Orthopaedic Surgery, Washington University Schoolo f Medicine, St. Louis, MO; the Department of Orthopaedic Surgery, Musculoskeletal Research Center, University of Pittsburgh, Pittsburgh, PA; and Georgia Hand and Microsurgery, Atlanta, GA. Received for publication July 28, 1994; accepted in revised form December 10, 1997. Supported by National Institutes of Health Grant No. 5R01-AR33097. 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. Reprint requests: John Gray Seller III, MD, Georgia Hand and Microsurgery, 1938 Peachtree Rd, Suite 603, Atlanta, GA 30309. Copyright 9 1998 by the American Society for Surgery of the Hand. 0363-5023/98/23A02-001653.00/0 autogenous digital flexor tendon grafts.t 6 Extrasy-novial tendon grafts have been found to heal through a process of peritendinous adhesion formation. While subsequent tissue remodeling occurs, extrasy-novial tendon grafts have been characterized by inconsistent restoration of digital motion. 2'3 In contrast, intrasynovial tendon grafts have been shown to incorporate with a more complete preservation of the gliding surface. Preservation of the gliding surface has been shown to be correlated with near-normal digital motion and minimal adhesion formation.
PY - 1998
Y1 - 1998
N2 - To determine the relationship between the intrinsic properties of tendon and tendon excursion in 2 types of autogenous tendon grafts, hindpaw intrasynovial and extrasynovial tendons were transferred to the lateral and medial forepaws of adult mongrel dogs (16 experimental and 16 control tendons). After each digit was marked with radiopaque markers, it was placed in a specialized jig, and weights of 25 g, 100 g, or 200 g were applied to the flexor tendons. Specialized radiographs were obtained with the digit in flexion and extension. Tendon excursion and joint rotation were calculated. There were no statistically significant differences between experimental groups for tendon excursion or for joint angular rotation (p > .05). For intrasynovial tendon grafts, the angular rotation per millimeter tendon excursion was 10.9°± 2.4°/mm, 9.4°± 1.2°/mm, and 9.0°± 1.4°/mm with 25-g, 100-g, and 200-g loads, respectively. Comparisons between experimental groups revealed that a statistically significant difference could not be determined (p > .05). With varying proximal loads, both intrasynovial and extrasynovial grafts showed similar amounts of tendon excursion. Variations in proximal load did not significantly influence the amount of excursion within the range of loads tested. Based on these data, it appears that the difference in repair potential for these 2 types of tendon grafts is not related to a differential in the amount of tendon graft excursion following transfer to the synovial space.
AB - To determine the relationship between the intrinsic properties of tendon and tendon excursion in 2 types of autogenous tendon grafts, hindpaw intrasynovial and extrasynovial tendons were transferred to the lateral and medial forepaws of adult mongrel dogs (16 experimental and 16 control tendons). After each digit was marked with radiopaque markers, it was placed in a specialized jig, and weights of 25 g, 100 g, or 200 g were applied to the flexor tendons. Specialized radiographs were obtained with the digit in flexion and extension. Tendon excursion and joint rotation were calculated. There were no statistically significant differences between experimental groups for tendon excursion or for joint angular rotation (p > .05). For intrasynovial tendon grafts, the angular rotation per millimeter tendon excursion was 10.9°± 2.4°/mm, 9.4°± 1.2°/mm, and 9.0°± 1.4°/mm with 25-g, 100-g, and 200-g loads, respectively. Comparisons between experimental groups revealed that a statistically significant difference could not be determined (p > .05). With varying proximal loads, both intrasynovial and extrasynovial grafts showed similar amounts of tendon excursion. Variations in proximal load did not significantly influence the amount of excursion within the range of loads tested. Based on these data, it appears that the difference in repair potential for these 2 types of tendon grafts is not related to a differential in the amount of tendon graft excursion following transfer to the synovial space.
UR - http://www.scopus.com/inward/record.url?scp=0032451658&partnerID=8YFLogxK
U2 - 10.1016/S0363-5023(98)80128-7
DO - 10.1016/S0363-5023(98)80128-7
M3 - Article
C2 - 9556270
AN - SCOPUS:0032451658
SN - 0363-5023
VL - 23
SP - 285
EP - 289
JO - Journal of Hand Surgery
JF - Journal of Hand Surgery
IS - 2
ER -