Fibertape

Two inverted mattress sutures with 2-mm suture tape (Fibertape®; Arthrex Inc) were passed 10.0 mm medial to the lateral edge of the simulated tear, approximately 10.0 mm apart. After that, a cinch suture (FiberLink®; Arthrex) was passed just medial to the inverted mattress suture tape. This step with the cinch suture was repeated in same fashion for the second anchor. Two lateral holes were punched in the same manner as for the Groups A and B. After the surgeon tensioned it laterally over the tendon edge, two knotless anchors (4.75-mm Bio-Composite SwiveLock®; Arthrex) were used to fix the suture tape and the cinch suture down into the tuberosity holes (Fig. 1c).

Two inverted mattress stitches with a 2 mm suture tape (Fibertape®; Arthrex Inc) sutures were passed 10.0 mm apart from one another and 10.0 mm medial to the lateral edge of the simulated tear, with 5.0 mm separating both repair systems. Starting 5 mm posterior to the bicipital groove, two lateral holes were made close to the lateral edge of the greater tuberosity and centered 15.0 mm apart. Two knotless anchors (4.75-mm Bio-Composite SwiveLock®; Arthrex) were used to fix the tape down into the tuberosity holes, after the surgeon tensioned it laterally over the tendon edge (Fig. 1b).

The data was collected at our level one trauma center, the study is a retrospective case-control study. All analysis conducted were provided after approval of the ethics committee in northwest- and central Switzerland (Swissethics ID 2020–02448). Patients included had AC-joint injuries Rockwood grade III - V between march 2017 and march 2021. Shoulder specialist performed all operations by athroscopic using the DogBone®-Button (Arthrex, Naples, FL, USA). In four patients, the acromioclavicular joint was additionally addressed by transfixation with two Swive-Lock® anchor (Arthrex, Naples, FL, USA) and a FiberTape® (Arthrex, Naples, FL, USA). Non-operative therapy consisted of immobilization in a sling or arm fixation vest for four weeks. Inclusion criteria were the age of > 18 years, Rockwood grade ≥ III and a follow-up of at least six months. Patients with further operations of the shoulder, degenerative or previous damages of the shoulder and rejection of participation were excluded.

The data was collected at our level one trauma center, the study is a retrospective case-control study. All analysis conducted were provided after approval of the ethics committee in northwest- and central Switzerland (Swissethics ID 2020–02448). Patients included had AC-joint injuries Rockwood grade III - V between march 2017 and march 2021. Shoulder specialist performed all operations by athroscopic using the DogBone®-Button (Arthrex, Naples, FL, USA). In four patients, the acromioclavicular joint was additionally addressed by transfixation with two Swive-Lock® anchor (Arthrex, Naples, FL, USA) and a FiberTape® (Arthrex, Naples, FL, USA). Non-operative therapy consisted of immobilization in a sling or arm fixation vest for four weeks. Inclusion criteria were the age of > 18 years, Rockwood grade ≥ III and a follow-up of at least six months. Patients with further operations of the shoulder, degenerative or previous damages of the shoulder and rejection of participation were excluded.