2019 AMI Online Salon

Canine shoulder model for biceps tenodesis surgery

Project Details

  • Company/Institution: University of Missouri
  • Entrant Name: Stacy Cheavens
  • Membership Type: Professional Submission                  
  • Address: Columbia, MO
  • Client: University of Missouri Department of Orthopaedic Surgery
  • Medium/software used: Graphite, Photoshop
  • Final presentation format: Journal article
  • Primary Audience: Health professionals and research scientists

Project Description

One method of repairing a biceps tendon torn at the shoulder is tenodesis surgery in which the tendon is affixed to the proximal humerus. In this study, the canine model is used to compare augmentation techniques in tenodesis with suspensory fixation: OsteoCrete (a bone void filler) vs interference screw.

In the procedure, the origin of the long head of the biceps tendon was transected and whipstitched. A 7-mm diameter socket was then drilled into the proximal humerus and the tendon was inserted using a tension-slide technique. In one limb, OsteoCrete was injected into the socket before final tensioning of the suspensory button. In the other limb, a 7-mm interference screw was inserted after the button was tensioned.

It was concluded that OsteoCrete significantly improved fixation, particularly in low quality bone.