An age- and gender-related three-dimensional analysis of rotator cuff transverse force couple volume ratio in 304 shoulders

Espinosa-Uribe, Abraham Guadalupe; Negreros-Osuna, Adrián A.; O, Jorge Gutiérrez-de la; Vílchez-Cavazos, Félix; Pinales-Razo, Ricardo; Quiroga‐Garza, Alejandro; Elizondo‐Riojas, Guillermo; Elizondo‐Omaña, Rodrigo Enrique; Guzmán-López, Santos

doi:10.1007/s00276-016-1714-x

Cited by 11 publications

(8 citation statements)

References 25 publications

(62 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Given the previous studies on the effects of the coronal and sagittal couple forces on the functions of the rotator cuff, 6 , 12 , 13 , 20 when posterior delamination occurs, biomechanical changes and damage are expected in the posterior infraspinatus and teres minor tendon regions in this study owing to the sagittal couple force. It was judged that excess tension could be applied to the anterior subscapularis tendon owing to the collapsed sagittal pairing force.…”

Section: Discussionmentioning

confidence: 94%

“… 13 The sagittal couple force has been shown to provide anteroposterior stability through the anterior subscapularis and posterior infraspinatus and teres minor tendons. 6 , 12 , 20 Considering the above theory, if posterior delamination of the rotator cuff occurs, there is a possibility of damage to the sagittal couple force. It can be inferred that the damaged couple force may affect the anterior subscapularis tendon.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Relationship between rotator cuff posterior delamination and subscapularis tear: a large cross-sectional analysis

Kim¹,

Cho²,

Lee³

et al. 2023

JSES International

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 94%

mentioning

confidence: 99%

Relationship between rotator cuff posterior delamination and subscapularis tear: a large cross-sectional analysis

Kim¹,

Cho²,

Lee³

et al. 2023

JSES International

View full text Add to dashboard Cite

“…16 The main limitation of the study by Mitterer et al 16 is the lack of a healthy control group. Additionally, although 2 studies 6,25 showed no significant differences between muscle volume of the subscapularis and infraspinatus/teres minor in healthy individuals, age differences and sample size can indeed make a direct comparison of different cohorts difficult. In the study of Piepers et al, 25 only 27 shoulders in 21 patients with a mean age of 57 years were analyzed.…”

Section: Discussionmentioning

confidence: 99%

“… 13 , 16 , 33 The rotator cuff transverse force couple, which defines the balance between the forces of the subscapularis muscle and the infraspinatus and teres minor muscles, plays a crucial role in the normal kinematics of the shoulder, as it generates an antagonistic balance between anterior- and posterior-directed forces ensuring appropriate glenohumeral stability. 6 , 10 , 32 Recent studies showed a balanced transverse force couple volume ratio in healthy individuals, 6 , 25 whereas Mitterer et al 16 showed an imbalanced transverse force couple with a comparatively large subscapularis muscle volume in young patients with static posterior humeral head subluxation without osteoarthritis. A greater anterior muscle volume may cause an increased posterior force vector, contributing to the static posterior humeral subluxation.…”

mentioning

confidence: 99%

Differences in Osseous Shoulder Morphology, Scapulothoracic Orientation, and Muscle Volume in Patients With Constitutional Static Posterior Shoulder Instability (Type C1) Compared With Healthy Controls

Akgün,

Gebauer,

Paksoy

et al. 2024

Am J Sports Med

View full text Add to dashboard Cite

Background: Constitutional static posterior humeral decentering (type C1 according to ABC Classification) has been recognized as a pre–osteoarthritic deformity that may lead to early-onset posterior decentering osteoarthritis at a young age. Therefore, it is important to identify possible associations of this pathologic shoulder condition to find more effective treatment options. Purpose: To perform a comprehensive analysis of all parameters reported to be associated with a C1 shoulder—including the osseous shoulder morphology, scapulothoracic orientation, and the muscle volume of the shoulder girdle in a single patient cohort. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A retrospective, comparative study was conducted analyzing 17 C1 shoulders in 10 patients who underwent magnetic resonance imaging (MRI) with the complete depiction of the trunk from the base of the skull to the iliac crest, including both humeri. The mean age of the patients was 33.5 years, and all patients were men. To measure and compare the osseous shoulder morphology (glenoid version, glenoid offset, humeral torsion, anterior acromial coverage, posterior acromial coverage, posterior acromial height, and posterior acromial tilt) and scapulothoracic orientation (scapular protraction, scapular internal rotation, scapular upward rotation, scapular translation, scapular tilt, and thoracic kyphosis), these patients were matched 1 to 4 according their age, sex, and affected side with shoulder-healthy patients who had received positron emission tomography (PET)-computed tomography. To measure and compare the muscle volume of the shoulder girdle (subscapularis, infraspinatus/teres minor, supraspinatus, trapezius, deltoid, latissimus dorsi/teres major, pectoralis major, and pectoralis minor), patients were matched 1 to 2 with patients who had received PET-MRI. Patients with visible pathologies of the upper extremities were excluded. Results: The C1 group had a significantly higher glenoid retroversion, increased anterior glenoid offset, reduced humeral retrotorsion, increased anterior acromial coverage, reduced posterior acromial coverage, increased posterior acromial height, and increased posterior acromial tilt compared with controls ( P < .05). Decreased humeral retrotorsion showed significant correlation with higher glenoid retroversion ( r = −0.742; P < .001) and higher anterior glenoid offset ( r = −0.757; P < .001). Significant differences were found regarding less scapular upward rotation, less scapular tilt, and less thoracic kyphosis in the C1 group ( P < .05). The muscle volume of the trapezius and deltoid was significantly higher in the C1 group ( P < .05). Conclusion: Patients with C1 shoulders differ from healthy controls regarding osseous scapular and humeral morphology, scapulothoracic orientation, and shoulder girdle muscle distribution. These differences may be crucial in understanding the delicate balance of glenohumeral centering.

show abstract

“…The IS and SSc muscles are balancing forces across the shoulder that keep the humeral head compressed and centered on the glenoid as part of a transverse force couple mechanism. 14 Even in the presence of an irreparable SS tendon tear, shoulder function can be maintained. A rat study examining the effect of SS and IS tendon detachment followed by no repair, full repair, or isolated IS tendon repair found similar kinetic abilities between animals with either a full repair or an isolated IS tendon repair.…”

Section: Discussionmentioning

confidence: 99%

Do Outcomes of Arthroscopic Subscapularis Tendon Repairs Depend on Rotator Cuff Fatty Infiltration?

Monroe¹,

Flores

Zhang

et al. 2020

Orthopaedic Journal of Sports Medicine

View full text Add to dashboard Cite

Background: Rotator cuff fatty infiltration has been correlated with poorer radiographic and clinical outcomes in supraspinatus and infraspinatus tendon repairs, but this has not been well-studied in subscapularis tendon repairs. Purpose: To evaluate the influence of preoperative rotator cuff fatty infiltration on postoperative outcomes for patients undergoing arthroscopic subscapularis tendon repair. Study Design: Cohort study; Level of evidence, 3. Methods: Patients who underwent arthroscopic subscapularis repair between 2010 and 2016 were retrospectively identified, and demographic data and surgical findings were recorded. The extent of fatty infiltration was determined on preoperative magnetic resonance imaging by the Fuchs modification of the Goutallier classification. At the most recent follow-up, patients completed the Patient-Reported Outcomes Measurement Information System for Upper Extremity (PROMIS-UE) computer adaptive test and a postoperative visual analog scale for pain. The distribution of fatty infiltration was compared between patients undergoing subscapularis tendon repair versus subscapularis tendon repair combined with a posterior cuff repair. Outcomes were compared for patients using Goutallier grade 0-1 versus grade ≥2 changes in each rotator cuff muscle. Multivariate linear regression analysis was performed to evaluate the influence of muscle quality, as well as demographic factors, on PROMIS-UE scores. Significance was defined as P < .05. Results: There were 140 shoulders included (mean age, 61.8 years; 42.1% female; mean follow-up, 51.7 months). The prevalence of Goutallier grade 2 changes or higher was significantly greater in patients with multitendon repair relative to isolated subscapularis tendon repair. For the overall group of all patients undergoing subscapularis tendon repair, whether in isolation or as part of a multitendon repair, PROMIS-UE scores were significantly lower for patients with infraspinatus muscle grade 2 or higher Goutallier changes relative to grade 0 or 1. After adjustment for age, body mass index, patient sex, and fatty infiltration in other rotator cuff muscles, poor infraspinatus muscle quality remained the only significant predictor for lower PROMIS-UE scores. Conclusion: Patients undergoing arthroscopic subscapularis tendon repair with poor infraspinatus muscle quality had worse patient-reported outcomes. This was true whether subscapularis tendon repair was isolated or was performed in conjunction with supraspinatus and infraspinatus tendon repairs.

show abstract

An age- and gender-related three-dimensional analysis of rotator cuff transverse force couple volume ratio in 304 shoulders

Cited by 11 publications

References 25 publications

Relationship between rotator cuff posterior delamination and subscapularis tear: a large cross-sectional analysis

Relationship between rotator cuff posterior delamination and subscapularis tear: a large cross-sectional analysis

Differences in Osseous Shoulder Morphology, Scapulothoracic Orientation, and Muscle Volume in Patients With Constitutional Static Posterior Shoulder Instability (Type C1) Compared With Healthy Controls

Do Outcomes of Arthroscopic Subscapularis Tendon Repairs Depend on Rotator Cuff Fatty Infiltration?

Contact Info

Product

Resources

About