Effect of partial versus complete circumferential repair on flexor tendon strength in cadavers.
J Hand Surg Am
; 34(10): 1771-6, 2009 Dec.
Article
en En
| MEDLINE
| ID: mdl-19969187
PURPOSE: This study investigated the strength of epitendinous repairs covering the palmar half of the tendon circumference only. METHODS: Two hundred porcine tendons were harvested from pig feet and separated into 2 equal groups. Group 1 tendons were sutured with a 2-strand core repair and group 2 tendons were sutured with a 4-strand core repair. Each group was then divided into 5 equal subgroups (n=20). Four of the subgroups were sutured with 1 of the following epitendinous repairs: 50% simple running (50SR), complete simple running (100SR), 50% Silfverskiold (50SK), or complete Silfverskiold (100SK). One sub-group (0C) had no epitendinous repair. The core suture material was 3-0 braided polyester (Tricon; Tyco Healthcare, Dominican Republic), and the circumferential suture material was 6-0 polypropylene (Prolene, Sumerville, NJ). The tendons were mechanically strained to failure, and force data were recorded. RESULTS: The 50SR and 50SK repairs significantly increased the force at 1-mm and 2-mm gap formation of both core repairs. The 50SR and 50SK repairs increased the ultimate force at failure of both core repairs by approximately 20%. Both 50% circumferential (50C) repairs increased repair strength at the points of initial gap formation more than at the point of ultimate force. The 50C repairs were approximately 50% as strong as the 100% circumferential (100C) repairs at 1-mm and 2-mm gap formation and approximately 70% as strong at the ultimate force of failure. CONCLUSIONS: The 50C repairs increased the tensile strength of 2-strand and 4-strand tendon repairs in vitro. The prevention of early gapping was more significant than the increase of strength at failure.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Complicaciones Posoperatorias
/
Traumatismos de los Tendones
/
Resistencia a la Tracción
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Técnicas de Sutura
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Traumatismos de los Dedos
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Traumatismos de la Mano
Límite:
Animals
/
Humans
Idioma:
En
Revista:
J Hand Surg Am
Año:
2009
Tipo del documento:
Article
País de afiliación:
Australia
Pais de publicación:
Estados Unidos