Arthroscopic repair of HAGL lesions yields good clinical results, but may not allow return to former level of sport.

PURPOSE: There is a paucity of evidence regarding mid- to long-term clinical outcomes of arthroscopic repair of humeral avulsion of the glenohumeral ligament (HAGL). This study investigated clinical outcomes, return to sport and the frequency of associated shoulder lesions. METHODS: Eighteen patients underwent arthroscopic repair of a HAGL lesion between 2008 and 2015. Clinical outcome was evaluated using the Rowe Score, the Quick DASH Score (Q-DASH), the Oxford Shoulder Instability Score (OSIS), the ASES Score and Range of Motion (ROM). Return to sports and associated shoulder lesions were documented. RESULTS: Sixteen patients agreed to complete the shoulder scores and nine patients were available for clinical examination. Median time to follow-up was 59 months (range 16-104). The median Rowe Score and Q-DASH Score improved significantly from 33 to 85 points and 61 to 7 points, respectively (p = 0.001, p = 0.001). The median OSIS and ASES Score were 20 and 91 points. External rotation was significantly reduced compared to the contralateral side (p = 0.011). One recurrent dislocation was reported. No neurologic or vascular complications after surgery were reported. Five out of the nine patients did not return to sports at the same level. Associated shoulder lesions were found in 89% of the cases. CONCLUSION: Arthroscopic repair of a HAGL lesion is a reliable method to restore shoulder stability with good clinical results. However, limitations in external rotation and a reduction in sporting ability may persist at 59 months follow-up. Concomitant lesions are common. LEVEL OF EVIDENCE: Case series, level IV.

Monocortical fixation of the coracoid in the Latarjet procedure is significantly weaker than bicortical fixation.

PURPOSE: A crucial step of the Latarjet procedure is the fixation of the coracoid process onto the glenoid. Multiple problems associated with the fixation have been described, including lesions of the suprascapular nerve due to prominence of the screw or bicortical drilling. The purpose of the present study was to evaluate whether monocortical fixation, without perforating the posterior glenoid cortex, would provide sufficient graft stability. METHODS: Coracoid transfer was performed in 14 scapula models (Sawbones®, Composite Scapula, 4th generation). Two groups were assigned: in one group, fixation was achieved with two screws that did not perforate the posterior cortex of the glenoid neck (monocortical fixation), in the other group, fixation was achieved with perforation of the posterior cortex (bicortical fixation). The ultimate failure load and mode of failure were evaluated biomechanically. RESULTS: Monocortical fixation was a significantly weaker construct than bicortical fixation (median failure load 221 N, interquartile range 211-297 vs. median failure load 423 N, interquartile range 273-497; p = 0.017). Failure was either due to a pullout of the screws from the socket or a fracture of the glenoid. There was no significant difference in the mode of failure between the two groups (n.s.). CONCLUSION: Monocortical fixation was significantly weaker than bicortical fixation. However, bicortical drilling and overly long screws may jeopardize the suprascapular nerve. Thus, anatomic knowledge about the safe zone at the posterior rim of the glenoid is crucial. Until further research has evaluated, if the inferior stability is clinically relevant, clinicians should be cautious to use a monocortical fixation technique for the coracoid graft.

Combined Fluoroscopic and Arthroscopic Detection and Removal of a Foreign Body Lost During Elective Shoulder Arthroscopy: A Case Report.

INTRODUCTION: We report a case of a lost metal platelet from a radiofrequency ablation probe (VAPR VUE Radiofrequency System, Cool Pulse 90, DePuy, Synthes, Switzerland) in the shoulder joint during elective arthroscopic cuff repair. To the best of our knowledge, this kind of an incident during elective arthroscopy has not been described in the literature so far. In addition, we present an algorithm on how to deal with such an incident. CASE REPORT: A 69-year-old woman underwent an arthroscopic subacromial decompression and rotator cuff repair for a torn supraspinatus tendon. While performing the subacromial decompression and after swapping the portals from lateral to posterior, the metal platelet of the electrocautery device got detached from the instrument and lost in the operation field. Several attempts to visualize the lost platelet with the camera failed. Finally, intraoperative fluoroscopic imaging was used to detect the platelet. To confirm the definitive whereabouts of the platelet, two spinal needles were positioned perpendicular to another under x-ray control, both pointing at the missing platelet. After determining the exact location, the platelet could finally be visualized with the camera and removed. Due to this incident, the operation time was extended extensively, and the patient as well as the theatre team was exposed to an unnecessary amount of radiation. CONCLUSION: This report indicates that an extraordinary incident such as the detachment of a component of the arthroscopic equipment during surgery is possible and should be kept in mind by the surgeon. Therefore, we believe that it is essential to perform a test of integrity at least at the end of every operation. In addition, we are presenting an algorithm on how to deal with the situation of a lost foreign body during arthroscopy, which can be applied to any joint.