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- Title
Mechanical Augmentation With Absorbable Alginate Sheet Enhances Healing of the Rotator Cuff.
- Authors
DONG HYUN KIM; SEUNG GI MIN; JONG PIL YOON; GA YOUNG PARK; JIN HYUN CHOI; JAE WOOK JUNG; HYUN JOO LEE; HEE JUNE KIM; SEOK WON CHUNG; JOON YUB KIM; Kim, Dong Hyun; Min, Seung Gi; Yoon, Jong Pil; Park, Ga Young; Choi, Jin Hyun; Jung, Jae Wook; Lee, Hyun Joo; Kim, Hee June; Chung, Seok Won; Kim, Joon Yub
- Abstract
For anatomical restoration of a repaired rotator cuff, mechanical augmentation of the repaired structure is essential. Using histological and biomechanical evaluation in a rat model, the authors sought to determine the efficacy of an absorbable alginate sheet at the supraspinatus tendon-to-bone repair site for healing of the rotator cuff tear. Forty adult (12 weeks old) male Sprague- Dawley wild-type rats were used in this study. The animals were randomly separated into 2 groups: group 1, conventional supraspinatus repair with acute repair; or group 2, supraspinatus repair with absorbable alginate sheet. Biomechanical and histological analyses were performed at 6 and 12 weeks after index rotator cuff surgery. Compared with group 1, group 2 exhibited a significantly greater mean ultimate failure load (group 1, 23.70±3.87 N; group 2, 61.44±43.67 N; P=.023) and mean ultimate stress (group 1, 2.83±0.50 MPa; group 2, 7.36±2.87 MPa; P=.020). However, 6-week outcomes were not significantly different. On histological scoring, compared with group 1, group 2 exhibited a significantly greater mean 6-week score (group 1, 4.10±1.72 points; group 2, 7.80±1.47 points; P<.001) and mean 12-week score (group 1, 3.50±1.00 points; group 2, 5.25±2.62 points; P=.020). Mechanical augmentation with absorbable alginate may improve tendon healing after surgical repair of the rotator cuff. [Orthopedics. 2019; 42(1):e104-e110.].
- Subjects
ROTATOR cuff surgery; ALGINATES; ANIMAL experimentation; HYDROCOLLOID surgical dressings; KINEMATICS; RATS; WOUND healing
- Publication
Orthopedics, 2019, Vol 42, Issue 1, pe104
- ISSN
0147-7447
- Publication type
journal article
- DOI
10.3928/01477447-20181206-04