A shallow morphology of the intertubercular groove is associated with medial and bilateral but not lateral pulley lesions

Purpose To investigate the influence of intertubercular groove (IG) morphology on the development of different types of biceps reflection pulley (BRP) injuries. Methods A consecutive cohort of 221 patients with ventral shoulder pain and a preoperative diagnosis suspecting BRP injury, who underwent a...

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Published in:Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA sports traumatology, arthroscopy : official journal of the ESSKA, 2023-08, Vol.31 (8), p.3221-3229
Main Authors: Kleim, Benjamin Daniel, Carbonel, Jose Fernando Sanchez, Hinz, Maximilian, Rupp, Marco-Christopher, Scheiderer, Bastian, Imhoff, Andreas Balthasar, Siebenlist, Sebastian
Format: Article
Language:English
Subjects:
Arthroscopy
Body measurements
Correlation coefficient
Correlation coefficients
Diameters
Grooves
Humans
Humeral Head
Humerus
Injuries
Knee
Lesions
Medicine
Medicine & Public Health
Morphology
Orthopedics
Retrospective Studies
Rotator Cuff - pathology
Rotator Cuff Injuries - pathology
Shoulder - pathology
Shoulder Joint - anatomy & histology
Shoulder Joint - diagnostic imaging
Shoulder Joint - surgery
Sports Medicine
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Summary:Purpose To investigate the influence of intertubercular groove (IG) morphology on the development of different types of biceps reflection pulley (BRP) injuries. Methods A consecutive cohort of 221 patients with ventral shoulder pain and a preoperative diagnosis suspecting BRP injury, who underwent arthroscopy, was retrospectively reviewed. The presence or absence as well as type of pulley injury (medial, lateral or bilateral) was confirmed arthroscopically. The intertubercular groove was evaluated on MRIs after triplanar reconstruction of the axial plane. IG depth, width, medial wall angle (MWA), lateral wall angle (LWA) and total opening angle (TOA) were measured. IG depth and width were expressed in relation to the humeral head diameter. Measurements were performed by two clinicians independently and averaged. Results Of 166 included patients 43 had bilateral, 65 medial and 38 lateral BRP lesions. 20 patients had intact BRPs and represented the control group. The intra-class correlation coefficient of measurements was 0.843–0.955. Patients with a medial or bilateral BRP injury had a flatter MWA (38.8° or 40.0° vs. 47.9°, p  
ISSN:0942-2056
1433-7347
DOI:10.1007/s00167-023-07350-x