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Title: Load response and gap formation in a single-row cruciate suture rotator cuff repair.
Epworth Authors: Richardson, Martin
Sobol, Tony
Other Authors: Huntington, Lachlan
Caldow, Jonathon
Ackland, David
Keywords: Double-Row Rotator Cuff Tendon Repair Techniques
Single-Row Repairs
Mason-Allen Repair Constructs
SutureBridge Repair Constructs
Spring Lamb Shoulders
Cruciate Suture Repair
Comparable Biomechanical Strength and Integrity
Construct Longevity and Tendon Healing Compared
Gap Formation
Ultimate Tensile Strength
Infraspinatus Tendons
Department of Orthopaedic Surgery, Epworth Healthcare, Richmond, Victoria, Australia
Musculoskelatal Clinical Institute, Epworth Healthcare, Victoria, Australia
Issue Date: Jan-2017
Publisher: Wiley Online Library
Citation: ANZ J Surg. 2017 Jan 26
Abstract: BACKGROUND: Double-row rotator cuff tendon repair techniques may provide superior contact area and strength compared with single-row repairs, but are associated with higher material expenses and prolonged operating time. The purpose of this study was to evaluate gap formation, ultimate tensile strength and stiffness of a single-row cruciate suture rotator cuff repair construct, and to compare these results with those of the Mason-Allen and SutureBridge repair constructs. METHODS: Infraspinatus tendons from 24 spring lamb shoulders were harvested and allocated to cruciate suture, Mason-Allen and SutureBridge repair groups. Specimens were loaded cyclically between 10 and 62 N for 200 cycles, and gap formation simultaneously measured using a high-speed digital camera. Specimens were then loaded in uniaxial tension to failure, and construct stiffness and repair strength were evaluated. RESULTS: Gap formation in the cruciate suture repair was significantly lower than that of the Mason-Allen repair (mean difference = 0.6 mm, P = 0.009) and no different from that of the SutureBridge repair (P > 0.05). Both the cruciate suture repair (mean difference = 15.7 N/mm, P = 0.002) and SutureBridge repair (mean difference = 15.8 N/mm, P = 0.034) were significantly stiffer than that of the Mason-Allen repair; however, no significant differences in ultimate tensile strength between repair groups were discerned (P > 0.05). CONCLUSION: The cruciate suture repair construct, which may represent a simple and cost-effective alternative to double-row and double-row equivalent rotator cuff repairs, has comparable biomechanical strength and integrity with that of the SutureBridge repair, and may result in improved construct longevity and tendon healing compared with the Mason-Allen repair.
DOI: 10.1111/ans.13875
PubMed URL:
ISSN: 1445-1433
Journal Title: ANZ Journal of Surgery
Type: Journal Article
Affiliated Organisations: Department of Mechanical Engineering, The University of Melbourne, Melbourne, Victoria, Australia.
Type of Clinical Study or Trial: Comparative Study
Appears in Collections:Musculoskeletal

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