The Association between SLAP Lesions and Critical Shoulder Angle and Glenoid Depth.

Acta Chir Orthop Traumatol Cech

Department of Orthopedics and Traumatology, Faculty of Medicine, Mugla Sitki Kocman University, Mugla, Turkey.

Published: March 2024

AI Article Synopsis

  • The study investigates the relationship between the critical shoulder angle (CSA) and the occurrence of SLAP lesions, which cause significant shoulder pain, along with glenoid depth measurements in patients undergoing shoulder arthroscopy.
  • A total of 191 patients were analyzed, with 37 presenting SLAP lesions and 154 with intact superior labrum, revealing a significant difference in CSA between the two groups, indicating that lower CSA may be linked to the presence of SLAP lesions.
  • The results suggest that while low CSA is associated with SLAP lesions and glenohumeral osteoarthritis, glenoid depth does not show a significant correlation with SLAP lesions, prompting the need for further research on CSA's role in shoulder pathologies.

Article Abstract

Purpose Of The Study: The critical shoulder angle (CSA) is formed by the combination of glenoid inclination and acromial index and has been shown related to rotator cuff tears and glenohumeral osteoarthritis. SLAP lesions today have an important place among bicipitolabral pathologies that cause intensive shoulder pain. We aimed to investigate the relationship between CSA and glenoid depth and SLAP lesions.

Material And Methods: Between March 2017 and January 2022, 279 consecutive shoulder arthroscopy patients' MRI images were retrospectively examined. After the exclusion criteria, 191 patients were eligible. Patients with SLAP lesions (n=37) were assembled as the study group (Group 1), and patients with intact superior labrum (n=154) were named as the control group (Group 2). Critical shoulder angle (CSA) and glenoid depth measurements were performed using the preoperative MRI images.

Results: A total of 191 patients, of whom 84 were male (44%) were included. The mean age was 49.9±14.96 (range 18-79). There was a statistically signifi cant difference between the SLAP group (Group 1) and the control group (Group 2) in terms of CSA (p=0.032). The mean CSA was 31.66°±3.51° in Group 1 and 33.57° ±5.01° in Group 2. The cut-off value for CSA in patients with SLAP lesions was calculated as 32.85° and the area under the curve was 0.61, therefore a satisfactory association was observed between the groups. The mean glenoid depth was 4.32 ±1.25 mm in Group 1, and 4.39 ±0.32 mm in Group 2. There was no statistically signifi cant difference between the groups in terms of glenoid depth (p=0.136) and also no association between the glenoid depth and SLAP lesions was observed (cut-off=4.45 mm, AUC=0.32).

Conclusions: Low CSA is associated with SLAP lesions, just as in glenohumeral osteoarthritis. Further prospective clinical studies are needed to enlighten the predisposing effect of CSA to SLAP lesions and the success of superior labral repairs.

Level Of Evidence: Retrospective comparative study, Level III.

Download full-text PDF

Source
http://dx.doi.org/10.55095/achot2024/007DOI Listing

Publication Analysis

Top Keywords

slap lesions
28
glenoid depth
24
group group
16
critical shoulder
12
shoulder angle
12
group
12
csa
8
angle csa
8
glenohumeral osteoarthritis
8
slap
8

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!