Mechanical Properties of the Shoulder Ligaments under Dynamic Loading

Koh, Sung-Woo; Cavanaugh, John M.; Leach, James P.; Rouhana, Stephen W.

doi:10.4271/2004-22-0006

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…It forms a limitedly deformable link between the scapula and clavicle, scapular and clavicular motions, which allows for 8 (Harris et al, 2000) to 14 mm (Koh et al, 2005) elongation before failure, which is equivalent to about 201 of AC joint rotation. Since the clavicle is almost perpendicular to the scapular plane, the lateral rotation in the plane of the scapula is around the same axis as the axial rotation of the clavicle (van der Helm, 1994).…”

Section: Article In Pressmentioning

confidence: 99%

Shoulder function: The perfect compromise between mobility and stability

Veeger

Helm

2007

Journal of Biomechanics

343

209

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Section: Article In Pressmentioning

confidence: 99%

Shoulder function: The perfect compromise between mobility and stability

Veeger

Helm

2007

Journal of Biomechanics

343

209

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“…The aforementioned muscles were simulated as non-linear hyperelastic and incompressible (neo-Hookean) ( Dao et al, 2014 ). The material properties of each component are summarized in Table 1 ( Koh et al, 2004 ; Duprey et al, 2007 ).…”

Section: Methodsmentioning

confidence: 99%

Finite element study of the biomechanical effects on the rotator cuff under load

Zhou

Yang

et al. 2023

Front. Bioeng. Biotechnol.

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Rotator cuff injuries account for 50% of shoulder disorders that can cause shoulder pain and reduced mobility. The occurrence of rotator cuff injury is related to the variation in shoulder load, but the mechanical changes in the rotator cuff caused by load remain unclear. Therefore, the mechanical results of the rotator cuff tissue during glenohumeral abduction and adduction were analyzed based on a finite element shoulder model under non-load (0 kg) and load (7.5 kg) conditions. The results showed that the maximum von Mises stress on the supraspinatus muscle was larger than that on the subscapularis, infraspinatus, and teres minor muscles during glenohumeral abduction. Compared with the non-load condition, the maximum von Mises stress on the supraspinatus muscle increased by 75% under the load condition at 30° abduction. Under the load condition, the supraspinatus joint side exhibited an average stress that was 32% greater than that observed on the bursal side. The von Mises stress on the infraspinatus muscle was higher than that in other rotator cuff tissues during adduction. The stress on the infraspinatus muscle increased by 36% in the load condition compared to the non-load condition at 30° adduction. In summary, the increased load changed the mechanical distribution of rotator cuff tissue and increased the stress differential between the joint aspect and the bursal aspect of the supraspinatus tendon.

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“…Bolte et al 2003;Compigne et al 2004) as well as the mechanical properties of the entire shoulder complex (e.g. the shoulder ligaments, Koh et al 2004). the shoulder ligaments, Koh et al 2004).…”

Section: Impact Tolerancementioning

confidence: 99%