Open-construct PEEK shows improvement in shoulder function, bone ingrowth
Click Here to Manage Email Alerts
Shoulder function improved in patients after complete rotator cuff repair, and better bone ingrowth was found with an open-construct polyetheretherketone anchor compared to results with non-vented biocomposite anchors, according to a published study.
“The study demonstrated that the grade of bone ingrowth into open-construct PEEK [polyetheretherketone] anchors was superior to that of the non-vented biocomposite anchors at early healing phase,” Jong-Ho Kim, MD, of the department of orthopedic surgery at Wonkwang University Sanbon Hospital and Wonkwang University School of Medicine in Gunpo, Gyeonggi-do, Korea, and colleagues wrote.
From May 2016 to November 2016, 100 patients underwent arthroscopic rotator cuff repair. Of the 100 patients, 69 were enrolled and randomly assigned to two groups. In group 1 (36 patients), an open-construct PEEK suture anchor was used and in group 2 (33 patients), a non-vented biocomposite anchor was used.
All arthroscopic procedures were performed in the lateral decubitus position. Both groups received the same rehabilitation protocol, which involved an abduction base for 1 month postoperatively followed by pendulum and passive shoulder motion exercise, isometric exercises at 3 months postoperatively and sports activities were reintroduced at 6 months.
Results showed that at 6 months postoperatively, the grade of ossification of group 1 anchors was greater than group 2, with good or excellent grades in 25 (69.5%) patients in group 1 and 12 (36.3%) patients in group 2. There were no significant differences found in the American Shoulder and Elbow Surgeons score, Constant score, VAS and range of motion.
Cyst formation around the anchor during the 6-month postoperative CT scans (14% for group 1, 12% for group 2) and retear rate after 12 months (5% for both groups) showed no significant difference.
“Shoulder function was improved after complete rotator cuff repair and similar clinical outcomes were achieved regardless of suture anchor material and shape,” the researchers wrote. “However, the open-construct PEEK anchor provided better bone ingrowth into the anchor than the non-vented biocomposite anchor at 6 months after arthroscopic rotator cuff repair.” – by Erin T. Welsh
Disclosures: The authors report no relevant financial disclosures.
Read more about
Click Here to Manage Email Alerts