Reliability of open architecture anchors in biocomposite material: medium term clinical and MRI evaluation. Our experience.

Main Article Content

Paolo Di Benedetto
Nunzio Lassandro
Alessandro Beltrame
Francesco Mancuso
Piero Giardini
Araldo Causero

Keywords

open architecture anchors, shoulder, rotator cuff, tear, tendon repair, arthroscopy

Abstract

Objectives: Comparing radiologic bone ingrowth and the clinical outcomes of an open-construct
(PEEK) (polyether ether ketone) suture anchor with those of a bio-composite suture anchor (glycolic polylactic
acid anchors, beta-tricalcium phosphate and calcium sulphate) in patients with arthroscopic rotator
cuff repair. Methods: From August 2017 to January 2019, 33 patients of both sexes, aged between 44 and
78 years underwent arthroscopic rotator cuff repair for tears considered repairable with an extension not exceeding4 cm. The bioabsorbable anchors used comprised glycolic polylactic acid/beta-tricalcium phosphate/
calcium sulphate, and the non-absorbable anchors in polyetheretherketone (PEEK). All patients underwent
MRI evaluation at 12 months postoperatively to determine complications and identify any re-tear. Results:
Clinical scores showed an improvement from both clinical and functional point of view. There were no statistically significant changes compared to the physical examination. On radiographs, mobilizations, anchor
pull-outs or other complications did not occur in each group. Conclusions: Shoulder function improved after
complete repair of the rotator cuff and similar clinical results were achieved regardless of the material and
shape of the suture anchor. The bioabsorbable anchors in innovative open architecture material seem to have
results comparable to peek anchors. Unfortunately, further studies are needed to define the advantages in using one material compared to the other. (www.actabiomedica.it)

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