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Journal of Hand Surgery (British and European Volume)
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Articles

Biomechanical Analysis of a Modification of Tang Method of Tendon Repair

B. WANG
R. G. XIE
J. B. TANG

From the Department of Hand Surgery, Hand Surgery Research Center, Affiliated Hospital of Nantong Medical College, Nantong, Jiangsu, China

Correspondence: Professor Jin Bo Tang, Department of Hand Surgery, Hand Surgery Research Center, Affiliated Hospital of Nantong Medical College, 20 West Temple Road, Nantong 226001, Jiangsu, China. Tel.: +86-513-5119524; fax: +86-513-5110966; E-mail: hsrc{at}pub.nt.jsinfo.net.

We report a modification of the original Tang technique of tendon repair which uses fewer sutures and has fewer knots on the tendon surface. The modified method consists of six longitudinal and two horizontal strands that form an "M" configuration within the tendon and four dorsal longitudinal strands made with a single looped suture. Thirty-six fresh pig flexor tendons were divided and repaired with either the modified Tang or the Tang method. The tendons were subjected to linear or 90° angular loading in an Instron tensile machine. The gap formation strength and ultimate strength of the modified Tang repair was statistically identical to those of the Tang method under linear tension. Under angular tension, the ultimate strength of the modified Tang method was greater than that of the Tang method.

Key Words: Tang technique • modified Tang method • tendon repair

Journal of Hand Surgery (British and European Volume), Vol. 28, No. 4, 347-350 (2003)
DOI: 10.1016/S0266-7681(03)00019-6
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