Surgipro 2

Animals in groups 1 and 2 were subjected to identical bilateral supraspinatus detachment and repair as described^{14 (link)}. For analgesia, buprenorphine (0.05 mg/kg) was administered subcutaneously 30 minutes prior to surgery, 6–8 hours post-operatively, and then every 12 hours for the next 48 hours. Briefly and as described previously^{14 (link)}, with the arm held in external rotation and adduction, the deltoid muscle was split in the transverse plane to expose the supraspinatus tendon. The tendon was grasped using double-armed 5-0 polypropylene suture (Surgipro II, Covidien, Mansfield, MA) and was sharply transected from its bony insertion. For repair, a 5 mm diameter high speed bur (Multipro 395, Dremel, Mt. Prospect, IL) was used to remove remaining fibrocartilage from the footprint of the tendon insertion site. A 0.5 mm bone tunnel was drilled from anterior to posterior through the greater tuberosity of the humerus. The suture was passed through the bone tunnel and tied down, affixing the tendon to the greater tuberosity using a modified Mason-Allen technique. The wound was flushed with saline, and the deltoid and skin sutured closed.

Briefly and as described previously ^{17 (link)}, with the arm held in external rotation and adduction, the deltoid muscle was split in the transverse plane to expose the supraspinatus tendon. The tendon was grasped using double-armed 5-0 polypropylene suture (Surgipro II, Covidien, Mansfield, MA) and was sharply transected from its bony insertion. For repair, a 5 mm diameter high speed bur (Multipro 395, Dremel, Mt. Prospect, IL) was used to remove remaining fibrocartilage from the footprint of the tendon insertion site. A 0.5 mm bone tunnel was drilled from anterior to posterior through the greater tuberosity of the humerus. The suture was passed through the bone tunnel and tied down, affixing the tendon to the greater tuberosity using a modified Mason-Allen technique. The wound was flushed with saline, the deltoid sutured closed, and the skin closed with staples.

Animals were subjected to bilateral supraspinatus detachment and repair as described. For analgesia, buprenorphine (0.05 mg/kg) was administered subcutaneously 30 minutes prior to surgery, 6–8 hours post-operatively, and then every 8–12 hours for the next 48 hours. Briefly, with the arm held in external rotation and adduction and the supraspinatus tendon was exposed. The tendon was grasped with a simple grasping stitch using 5–0 polypropylene suture (Surgipro II, Covidien, Mansfield, MA) and was sharply transected from its bony insertion. For repair, a 5 mm diameter high speed bur (Multipro 395, Dremel, Mt. Prospect, IL) was used to remove the remaining fibrocartilage from the footprint of the tendon insertion site. A 0.5 mm bone tunnel was drilled from anterior to posterior through the greater tuberosity. Suture was then passed through the bone tunnel and tied, securing the supraspinatus to the footprint. The wound was flushed with saline, and the deltoid and skin sutured closed with 4-0 Vicryl (Ethicon, Bridgewater, NJ).