کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4068920 1604399 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The Effect of the Number of Cross-Stitches on the Biomechanical Properties of the Modified Becker Extensor Tendon Repair
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
The Effect of the Number of Cross-Stitches on the Biomechanical Properties of the Modified Becker Extensor Tendon Repair
چکیده انگلیسی

PurposeThe optimum number of cross-stitches in modified Becker repair for extensor tendon injury is not known. The purpose of this study was to compare the biomechanical characteristics of 1, 2, and 3 cross-stitches in modified Becker extensor repairs.MethodsWe used 8 fresh-frozen cadaveric hands (24 fingers). We exposed extensor tendons of the index, middle, and ring fingers over the proximal phalanx, cut them transversely at the mid-portion of zone IV (proximal phalanx), and repaired them in situ with a modified Becker technique with 1, 2, or 3 cross-stitches using 4-0 braided suture. We randomized the tendons within each hand for the number of cross-stitches. Stiffness, yield load, ultimate load, energy absorbed, and gap formation were measured. After a 5 N preload, each repair was cyclically loaded from 5 to 25 N for 30 cycles and from 5 to 35 N for 30 cycles at a rate of 20 mm/min to simulate loads during postoperative rehabilitation. After cyclic loading, the specimens were loaded to failure.ResultsThe repair with 1 cross-stitch showed superior gap resistance and stiffness during cyclic loading compared with 2 and 3 cross-stitches. One cross-stitch also resulted in higher stiffness and yield strength in load to failure testing. However, 3 cross-stitch configurations displayed higher ultimate strength. All repairs failed by knot slippage.ConclusionsA modified Becker extensor tendon repair with 1 cross-stitch provides superior mechanical properties for loads seen with postoperative rehabilitation compared with 2 and 3 cross-stitches for similar loads.Clinical relevanceThese findings may lead to reduced operative time and decreased tendon damage with superior results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Hand Surgery - Volume 37, Issue 2, February 2012, Pages 231–236
نویسندگان
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