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Journal of Hand Surgery (British and European Volume)
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Articles

Increased Suture Embedment in Tendons: An Effective Method to Improve Repair Strength

B. WANG
J. B. TANG

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

Correspondence: Professor Jin Bo Tang MD, 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: hrsc{at}pub.nt.jsinfo.net

We evaluated the effect of length of suture embedment within tendons on the tensile strength of repaired tendons. Thirty fresh pig flexor tendons were divided into three groups and subjected to repairs with the Halsted tendon sutures in which 1/3, 1/2, and 2/3 of the length of the longitudinal sutures was embedded within the tendons. The repaired tendons were pulled to complete failure by an Instron tensile testing machine. The 2 mm gap-formation force, ultimate strength, stiffness, and energy to failure were greatest when 2/3 of the suture length was embedded within the tendon. The results indicate that suture embedment is an important contributor to the tensile properties of the repair, and that increase in length of suture embedment is an effective way to strengthen tendon repairs.

Journal of Hand Surgery (British and European Volume), Vol. 27, No. 4, 333-336 (2002)
DOI: 10.1054/jhsb.2002.0773
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