title: Comparison of repair techniques in small and medium-sized rotator cuff tears in cadaveric sheep shoulders.
abstract: OBJECTIVE
  The aim of this study was to compare new knotless single-row and double-row suture anchor techniques with traditional transosseous suture techniques for different sized rotator cuff tears in an animal model.
  
  
  METHODS
  The study included 56 cadaveric sheep shoulders. Supraspinatus cuff tears of 1 cm repaired with new knotless single-row suture anchor technique and supraspinatus and infraspinatus rotator cuff tears of 3 cm repaired with double-row suture anchor technique were compared to traditional transosseous suture techniques and control groups. The repaired tendons were loaded with 5 mm/min static velocity with 2.5 kgN load cell in Instron 8874 machine until the repair failure.
  
  
  RESULTS
  The 1 cm transosseous group was statistically superior to 1 cm control group (p=0.021, p<0.05) and the 3 cm SpeedBridge group was statistically superior to the 1 cm SpeedFix group (p=0.012, p<0.05). The differences between the other groups were not statistically significant.
  
  
  CONCLUSIONS
  No significant difference was found between the new knotless suture anchor techniques and traditional transosseous suture techniques.
authors.affiliation: Department of Orthopedics and Traumatology, Dr. Sami Ulus Training and Research Hospital, Ankara, Turkey. ulaso@mynet.com
authors.forename: Ulaş
authors.initials: U
authors.lastname: Onay
authors.forename: Sercan
authors.initials: S
authors.lastname: Akpınar
authors.forename: Rahmi Can
authors.initials: RC
authors.lastname: Akgün
authors.forename: Cenk
authors.initials: C
authors.lastname: Balçık
authors.forename: Ismail Cengiz
authors.initials: IC
authors.lastname: Tuncay
mesh_terms: D000818:Animals; D001182:Arthroscopy; D001696:Biomechanical Phenomena; D002102:Cadaver; D023421:Models, Animal; D017006:Rotator Cuff / Q000601:surgery*; D000070636:Rotator Cuff Injuries; D034561:Sheep, Domestic; D012782:Shoulder / Q000601:surgery*; D053441:Suture Anchors; D013536:Suture Techniques; D053656:Tenodesis; D013718:Tensile Strength