title: Graft Augmentation Versus Bridging for Large to Massive Rotator Cuff Tears: A Systematic Review.
abstract: OBJECTIVE
  To systematically review the literature on the healing rates and clinical outcomes of the 2 different graft indications (i.e., augmentation vs bridging) during rotator cuff repair.
  
  
  METHODS
  A systematic literature review was performed for clinical studies of rotator cuff repair using grafts for large to massive tears. The primary outcome was tendon healing on either magnetic resonance imaging or ultrasound. The secondary outcomes included visual analog scale for pain, American Shoulder and Elbow Surgeons score, and University of California at Los Angeles score, and forward elevation. Studies were divided into augmentation and bridging groups, and outcomes were compared statistically.
  
  
  RESULTS
  Twelve studies with 13 study groups were included: 167 repairs in the augmentation group and 247 repairs in the bridging group. For augmentation and bridging groups, the mean age was 62.2 and 62.8 years and the mean follow-up was 28.5 and 37.7 months, respectively. The estimated healing rates were 64.0% for augmentation and 77.9% for bridging. Although both procedures had improved clinical outcomes, no statistical difference between groups was detected except lower visual analog scale in the bridging group at follow-up.
  
  
  CONCLUSIONS
  Bridging grafts had no significant difference in healing or clinical outcomes when compared with a graft used for augmentation. Bridging grafts may be considered for this difficult patient population with large to massive rotator cuff tears.
  
  
  METHODS
  Level IV, systematic review of Level II to IV studies.
authors.affiliation: Department of Surgery, Section of Orthopaedic Surgery, McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, Alberta, Canada; Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
authors.forename: Yohei
authors.initials: Y
authors.lastname: Ono
authors.affiliation: Department of Orthopedic Surgery, Colombia Universidad Nacional de Colombia Graduate School of Medicine, Bogota, Colombia.
authors.forename: Diego Alejandro
authors.initials: DA
authors.lastname: Dávalos Herrera
authors.affiliation: Department of Surgery, Section of Orthopaedic Surgery, McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, Alberta, Canada.
authors.forename: Jarret M
authors.initials: JM
authors.lastname: Woodmass
authors.affiliation: Department of Surgery, Section of Orthopaedic Surgery, McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, Alberta, Canada.
authors.forename: Richard S
authors.initials: RS
authors.lastname: Boorman
authors.affiliation: Department of Surgery, Section of Orthopaedic Surgery, McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, Alberta, Canada; Department of Orthopaedics, University of British Columbia, Vancouver, British Columbia, Canada.
authors.forename: Gail M
authors.initials: GM
authors.lastname: Thornton
authors.affiliation: Department of Surgery, Section of Orthopaedic Surgery, McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, Alberta, Canada. Electronic address: ikylo@ucalgary.ca.
authors.forename: Ian K Y
authors.initials: IK
authors.lastname: Lo
mesh_terms: D001182:Arthroscopy; D006801:Humans; D000070636:Rotator Cuff Injuries / Q000601:surgery*; D013710:Tendons / Q000637:transplantation*; D064232:Visual Analog Scale; D014945:Wound Healing