Short-term outcomes after knotless all-suture anchor Bankart repair
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Original Contribution Obere Extremität https://doi.org/10.1007/s11678-020-00616-7 Received: 19 September 2020 Accepted: 6 November 2020 © Springer Medizin Verlag GmbH, ein Teil von Springer Nature 2020
Anna-K. Tross1,2 · Philip-C. Nolte1,3 · Marilee B. Horan1 · Joseph Ruzbarsky1 · Bryant P. Elrick1 · Thomas E. Woolson1 · Peter J. Millett4 1
Steadman Philippon Research Institute, Vail, USA Clinic for Orthopedics and Trauma Surgery, Heidelberg University Hospital, Heidelberg, Germany 3 Clinic for Trauma and Orthopaedic Surgery, BG Trauma Center Ludwigshafen at the University of Heidelberg, Heidelberg, Germany 4 Steadman Philippon Research Institute, The Steadman Clinic, Vail, USA 2
Short-term outcomes after knotless all-suture anchor Bankart repair Bankart lesions can be addressed with numerous surgical techniques. To date, a variety of suture anchor designs such as bioabsorbable anchors made of polyglycolic acid, combinations of bioabsorbable polymers with osteoinductive bioceramic (biocomposite anchors), and polyetheretherketone (PEEK) material have replaced metallic tacks and anchors [7, 15]. To overcome some of the disadvantages of solid suture anchors, such as anchor migration and glenohumeral cartilage damage [11, 20], nonabsorbable all-suture or “soft” anchors with small diameters were developed [9].
Background Arthroscopic treatment has become the gold standard therapy for symptomatic anterior shoulder instability, offering good clinical results and high return-tosport rates [14, 25]. One remaining area of concern is the high recurrence rate of up to 25% that was found to be associated with younger age and the number of anchors used for the fixation of the capsulolabral structures [1, 3, 17, 19, 22]. However, placing multiple glenoid anchors to provide better stability can result in “postage stamp” fractures of the anterior glenoid rim [24]. Recently, nonabsorbable all-suture or “soft” anchors have entered the market. Multiple points of soft tissue fixation are
possible thanks to the small diameter of the anchors [8, 9, 12]. All-suture anchors are also considered to preserve glenoid bone stock [9, 12]. Other potential advantages are application through curved guides [12], facilitated revision surgery due to little bone loss [2, 8], and low radiographic artifacts in the postoperative setting [2, 23]. Rigidity-related complications such as anchor migration and glenohumeral cartilage damage, which are associated with solid anchors [11, 20], are minimized [2, 9, 12]. Biomechanical studies demonstrated high failure loads [4] and similar ultimate load-to-failure rates compared with classic solid anchors [8, 13]. However, to date, few studies have reported on the clinical outcome after the use of all-suture anchors for glenohumeral instability [2, 9, 23]. Therefore, the purpose of this study was to report on clinical short-term outcomes after arthroscopic knotless all-suture Bankart repair in patients with anterior shoulder instability. It is hypothesized that this technique provides good functional outcomes with lo
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