title: Transtendon rotator-cuff repair of partial-thickness articular surface tears can lead to medial rotator-cuff failure.
abstract: OBJECTIVE
  The purpose of this study was to evaluate clinical and anatomic outcomes of patients following transtendon rotator-cuff repair of partial articular supraspinatus tendon avulsion (PASTA) lesions.
  
  
  METHODS
  Patients in the senior author's practice who had isolated PASTA lesions treated by transtendon rotator-cuff repair were included (n=8) and retrospectively reviewed. All patients were evaluated preoperatively and at a mean of 21.2 months (±9.7 months) postoperatively using standardized clinical evaluation (physical exam, American Shoulder and Elbow Surgeons, and Simple Shoulder Test). All patients underwent postoperative imaging with a magnetic resonance imaging arthrogram.
  
  
  RESULTS
  There was a significant improvement in American Shoulder and Elbow Surgeons (42.7±17.5 to 86.9±25.2) and Simple Shoulder Test (4.6±3.2 to 10.1±3.8) scores from pre- to postoperative, respectively. Postoperative imaging demonstrated full-thickness medial cuff tearing in seven patients, and one patient with a persistent partial articular surface defect.
  
  
  CONCLUSIONS
  Transtendon repair of PASTA lesions may lead to improvements in clinical outcome. However, postoperative imaging demonstrated a high incidence of full-thickness rotator-cuff defects following repair.
authors.affiliation: St Joseph's Hospital, Comox, BC, Canada.
authors.forename: Tom C
authors.initials: TC
authors.lastname: Woods
authors.affiliation: Department of Surgery, University of Calgary, Calgary, AB, Canada.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Carroll
authors.affiliation: Sport Medicine Centre, University of Calgary, Calgary, AB, Canada.
authors.forename: Atiba A
authors.initials: AA
authors.lastname: Nelson
authors.affiliation: Sport Medicine Centre, University of Calgary, Calgary, AB, Canada.
authors.forename: Kristie D
authors.initials: KD
authors.lastname: More
authors.affiliation: Department of Surgery, University of Calgary, Calgary, AB, Canada.
authors.forename: Randa
authors.initials: R
authors.lastname: Berdusco
authors.affiliation: Department of Orthopaedics, University of British Columbia, Vancouver, BC, Canada.
authors.forename: Stephen
authors.initials: S
authors.lastname: Sohmer
authors.affiliation: Department of Surgery, University of Calgary, Calgary, AB, Canada ; Sport Medicine Centre, University of Calgary, Calgary, AB, Canada.
authors.forename: Richard S
authors.initials: RS
authors.lastname: Boorman
authors.affiliation: Department of Surgery, University of Calgary, Calgary, AB, Canada ; Sport Medicine Centre, University of Calgary, Calgary, AB, Canada.
authors.forename: Ian Ky
authors.initials: IK
authors.lastname: Lo
keywords: PASTA lesion; rotator cuff; transtendon repair
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