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Footprint Contact Area and Interface Pressure Comparison Between the Knotless and Knot-Tying Transosseous-Equivalent Technique for Rotator Cuff Repair

Authors
 Sung-Jae Kim  ;  Sung-Hwan Kim  ;  Hyun-Soo Moon  ;  Yong-Min Chun 
Citation
 ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY, Vol.32(1) : 7-12, 2016 
Journal Title
ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY
ISSN
 0749-8063 
Issue Date
2016
MeSH
Aged ; Aged, 80 and over ; Arthroscopy ; Cadaver ; Humans ; Middle Aged ; Pressure ; Rotator Cuff/surgery* ; Rotator Cuff Injuries ; Suture Techniques*
Abstract
PURPOSE: To quantify and compare the footprint contact area and interface pressure on the greater tuberosity between knotless and knot-tying transosseous-equivalent (TOE) repair using pressure-sensitive film.
METHODS: We used 11 pairs of fresh-frozen cadaveric shoulders (22 specimens), in which rotator cuff tears were created before repair. Each pair was randomized to either conventional medial knot-tying TOE repair (group A) or medial knotless TOE repair using the modified Mason-Allen technique (group B). Pressure-sensitive film was used to quantify the pressurized contact area and interface pressure between the greater tuberosity and supraspinatus tendon.
RESULTS: The mean pressurized contact area was 33.2 ± 2.5 mm(2) for group A and 28.4 ± 2.4 mm(2) for group B. There was a significant difference between groups (P = .005). Although the overall contact configuration of both groups was similar and showed an M shape, group A showed a greater pressurized configuration around the medial row. The mean interface pressure was 0.20 ± 0.02 MPa for group A and 0.17 ± 0.02 MPa for group B. There was a significant difference between groups (P = .001).
CONCLUSIONS: Contrary to our hypothesis, in this time-zero study, medial knotless TOE repair using a modified Mason-Allen suture produced a significantly inferior footprint contact area and interface pressure compared with conventional medial knot-tying TOE repair.

CLINICAL RELEVANCE:
Even though we found a statistically significant difference between the 2 repair methods, it is still unknown if this statistical difference seen in our study has any clinical and radiologic significance.
Full Text
http://www.sciencedirect.com/science/article/pii/S0749806315006258
DOI
10.1016/j.arthro.2015.07.004
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sung Jae(김성재)
Kim, Sung Hwan(김성환) ORCID logo https://orcid.org/0000-0001-5743-6241
Chun, Yong Min(천용민) ORCID logo https://orcid.org/0000-0002-8147-6136
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/146302
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