کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10079274 | 1603628 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biomechanical comparison of bioabsorbable sutureless screw anchor versus suture anchor fixation for rotator cuff repair
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Biomechanical comparison of bioabsorbable sutureless screw anchor versus suture anchor fixation for rotator cuff repair Biomechanical comparison of bioabsorbable sutureless screw anchor versus suture anchor fixation for rotator cuff repair](/preview/png/10079274.png)
چکیده انگلیسی
Purpose: Anchors that directly fix the rotator cuff to bone without using sutures may simplify the challenges associated with arthroscopic rotator cuff repair. This study compared a bioabsorbable screw fixation device to a standard suture anchor fixation method. Type of Study: Randomized trial. Methods: A poly-L-lactide acid (PLLA), bioabsorbable screw anchor was compared with a metallic suture anchor loaded with No. 2 braided polyester suture in 12-week-old fresh-frozen bovine shoulders. Twelve specimens were randomly assigned to the 2 repair groups (6 per group). A 1 Ã 2-cm defect was created at the insertion site of the infraspinatus tendon. Two anchors were implanted 1 cm apart in the anatomic insertional area of the infraspinatus tendon. After preconditioning to 10 N, each construct was cycled between 10 and 180 N for up to a maximum of 2,500 cycles at a rate of 33 mm/second using a materials testing machine. The number of cycles to 5- and 10-mm gap formation at the repair site and mode of failure were recorded. Clinically, 10-mm gap formation defines complete fixation failure. Data were evaluated using an analysis of variance with significance set at P < .05. Results: Mattress suture fixation had significantly higher number of cycles to 10-mm failure compared with the PLLA device (P = .015). Failure occurred by tissue pullout in half the specimens and by device failure in the other half, without differences in failure modalities between groups. Conclusions: This anchor provides low-profile fixation of the rotator cuff and eliminates suture placement and knot tying during arthroscopic and mini-open cuff repair. However, these data suggest that this anchor may not perform adequately under cyclic loading conditions in patients during postoperative rehabilitation. Clinical Relevance: This bioabsorbable anchor may not provide sufficient fixation for rotator cuff repair in humans.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arthroscopy: The Journal of Arthroscopic & Related Surgery - Volume 21, Issue 1, January 2005, Pages 43-47
Journal: Arthroscopy: The Journal of Arthroscopic & Related Surgery - Volume 21, Issue 1, January 2005, Pages 43-47
نویسندگان
Steve M.D., Andrew M.S., Kelly M.D., Robert M.D., Ph.D.,