Abstract
Aim: In this work we report mild term clinical results of a consecutive series of 104 arthroscopic stabilizations for traumatic or non traumatic anterior-inferior shoulder instability treated using for the stabilization always poly- L-lactic acid Bioknotless anchors (Mitek, Nor-wood, Mass., USA) and surgical technique described by Thal, and the clinical results of 74 patients reviwed
Methods: From 2000 to 2005, 104 consecutive patients underwent arthroscopic capsuloplasty repair using bio-knotless anchors.14 cases were performed SLAP II by original reconstruction with bioknotless anchors. All the patient underwent preoperative a clinical examination and valued Constant and Rowe score, and subjected a X-Ray study and MRI o TC\ arthroTC scan. All patients were operated by same surgical team. 74 patients (55 male, 19 female) were reviewed with at least 20 months follow-up (20 – 60 months). Average age was 25 (18–45).
Results: Recurrence rate for instability was 6,7% (5/74). All recurrence, was associated with a large Hill-Sachs lesion and poor quality of capsular tissue. Overall, the results were good or excellent in 91,5% using the Rowe score. At X-ray study 28 cases have not show Samilson’s arthrosis, in 4 (14,7%) cases we observed geoid on glenoid side.
Conclusion: The improvement in the results, to use absorbable anchor, obtained could be related to the development of materials and in particular at use of PLLA (poly-L- lactic polymer) and PGACP (polygluconate co-polimer), at surgical techniques carried out, to the different fixation methods and not least to the different inclusion criteria used for the selection of patients.
Arthroscopic capsulolabral stabilization for the treatment of recurrent anterior shoulder instability repair using absorbable Knotless offers reliable results with respect to failure rate, range of motion, and shoulder function also at 4 years follow-up.
The percentage of rate for instability is 6,7% and is in accord with the International Literature on non resorbable anchors.
Correspondence should be addressed to Ms Larissa Welti, Scientific Secretary, EFORT Central Office, Technoparkstrasse 1, CH-8005 Zürich, Switzerland
