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Massive Rotator Cuff Tears

These tears usually exceed 4 to 5 cm in dimension, but can be deceiving. Clearly a tear retracted in a lateral to medial direction of 5 cm presents as a very challenging repair whereas a tear extending 5 cm in an anterior to posterior direction without significant retraction is a much easier surgical problem to […]

Myotendinous Junction

The myotendinous junction is the interface between muscle and tendon, and it allows the force generated by muscle contraction to be exerted on the skeleton to enact limb locomotion. To maximize the junctional surface area, a region of highly folded membranes in a fingerlike arrangement exists.

This increases the surface area between the muscle and […]

Palpation of the subscapularis tendon

The subscapularis muscle belly can only be reached by bringing the hand in between the scapula and the thorax. It cannot really be palpated. The tendinous insertion on the lesser tuberosity, however, can easily be palpated. The subject is in a half lying position on a couch, the upper arm along the body and the […]

Types of Injury to the Muscle-tendon Complex

Muscles and tendons function together as units. In principle, injuries can affect the muscle origin, the muscle belly, the point at which muscle and tendon merge (the muscle-tendon junction), the tendon itself,and the insertion of the tendon into bone and periosteum. In practice, injuries to the muscles usually occur at the muscle-tendon junction regardless of […]