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Knee Surg Sports Traumatol Arthrosc (2015) 23:619626 DOI 10.1007/s00167-014-3474-7
SHOULDER
A cruciate suture technique for rotator cuff repair
Jonathon Caldow Martin Richardson Subash Balakrishnan Tony Sobol Peter V. S. Lee David C. Ackland
Abstract
Purpose Re-establishment of the native footprint during rotator cuff repair is important for maximizing healing potential and xation strength. The purpose of this study was to evaluate the contact area, contact pressure, stiffness and tensile strength of a new single-row cruciate suture repair and to compare these results to those of the Mason-Allen, double-row and transosseous repairs.
Methods Infraspinatus tendons from fty-six lamb shoulders were harvested and randomly assigned to cruciate suture, Mason-Allen, double-row and transosseous repair groups. Repairs were performed over pressure-sensitive lm and footprint contact area and pressure measured. Repaired tendon specimens were also loaded in uni-axial tension, and ultimate tensile strength and stiffness measured.
Results The cruciate suture repair established signicantly greater footprint contact area compared to the Mason-Allen repair (mean difference = 101 mm2, p = 0.003). The
ultimate tensile strength and stiffness of the double-row repair was signicantly higher than that of all other repair groups (p < 0.05). The average footprint contact pressure of the cruciate suture repair (0.78 MPa) was similar to that of the Mason-Allen (0.74 MPa) and double-row repairs
J. Caldow P. V. S. Lee D. C. Ackland (*)
Department of Mechanical Engineering, University of Melbourne, Parkville, VIC 3010, Australia e-mail: [email protected]
M. Richardson T. Sobol
Department of Orthopaedic Surgery, Epworth Healthcare, Richmond, VIC 3121, Australia
S. Balakrishnan
Department of Orthopaedic Surgery, Westmead Childrens Hospital, Westmead, NSW 2145, Australia
Received: 14 August 2014 / Accepted: 4 December 2014 / Published online: 14 December 2014 European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2014
(0.79 MPa). The ultimate tensile strength of the cruciate suture repair was signicantly greater than that of the transosseous repair (mean difference 62.4 N, p = 0.002).
Conclusion The cruciate suture repair may improve strength and healing at the repaired tendon rotator cuff insertion relative to other single-row repair techniques. It may represent a faster, easier and more cost-effective alternative to double-row repairs.
Keywords Shoulder Tendon Footprint Contact area
Pressure Stiffness Surgery
Introduction
Recurrent tears following rotator cuff repair are common, with prevalence ranging from 20 to 82...