Tenorrhaphy and tendinous venous envelope (TVE). A morphofunctional study in 24 beagles dogs.
A morphofunctional study was undertaken in 24 Beagle dogs subjected to a a tenorrhaphy, in order to evaluate the results obtained with 3 different surgical procedures (16 hands each)--"traditional" (TRAD); the "tendinous venous envelope" (TVE), and the "simulated procedure" (SHAM). The surgical tissue (n = 48) was the extensor digitorum communis muscle of the hand (forepaw) bilaterally. For TRAD procedure, the Bunnell suture technique was applied. For the TVE procedure, the tenorrhaphy site was wrapped in a segment of autologous femoral vein and for the SHAM procedure, the tendon was exposed over 3 cm without sectioning it and the wound was closed. In each case, the limb was immobilised for 21 days in a cast. Functional data (288 X-rays) was obtained on angle variations of the radio-carpal joint in 2 different positions--passive (physiological), and forced (with an additional weight of 150 g). For each position, the angle variation obtained for each one of the surgical procedures were compared at 3 different times: day zero (surgical intervention), day 21 (cast removal), and day 35 (surgical tissue removal). Morphological data (144 sections) was obtained by analyzing the surgical tissue (tendinous fibrosis; fusion of the tendon clusters with the epimysium and the neighboring tissues; synovitis and the virtual space between the tendon and the neosheath). Tests of variance analysis by posts (critical H = 5.99), showed that the TVE procedure produced better results as compared to TRAD (SHAM approximately equal to TVE > TRAD) on day 21 (H = 22.58) as well as on day 35 (H = 8.08).
Bins Ely
J
J
Universidade Federal de San Paulo-EPM, Florianôpolis, Brasil.
Fagundes
D
D
Gomes
P O
PO
Pereira Filho
O J
OJ
Goldenberg
S
S
D000704:Analysis of Variance; D000818:Animals; D002370:Casts, Surgical; D016009:Chi-Square Distribution; D004285:Dogs; D005268:Femoral Vein; D005355:Fibrosis; D005500:Follow-Up Studies; D005552:Forelimb / Q000601:surgery; D007596:Joints / Q000502:physiology; D009135:Muscular Diseases / Q000517:prevention & control; D011183:Postoperative Complications / Q000517:prevention & control; D016059:Range of Motion, Articular / Q000502:physiology; D013536:Suture Techniques; D013585:Synovitis / Q000209:etiology; D013710:Tendons / Q000601:surgery*; D000267:Tissue Adhesions / Q000517:prevention & control; D014945:Wound Healing