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Research from Columbia University indicates that removing the bursa during rotator cuff surgery could impair healing, challenging the traditional view of the bursa as just a protective cushion.
Most damage to tendons in the rotator cuff comes from wear and tear that accumulates over years of repetitive motions. Among people over 65, about half have experienced a rotator cuff tear, which can make simple daily tasks like combing one’s hair difficult and painful. The bursa often becomes inflamed, sometimes concurrently, when underlying tendons are injured, and surgeons often remove the tissue because they suspect it is a source of shoulder inflammation and pain. But recent studies suggest the tissue may be playing other biological roles besides mechanical cushioning, including promoting healing of injuries to the tendons in the shoulder.
“The loss of mechanical integrity in the uninjured tendon in the absence of the bursa was striking,” Thomopoulos says. Uninjured tendons in the shoulder frequently degenerate over time after the initial injury, and “the animal data imply that retaining the bursa may prevent or delay the progression of this pathology.”
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