Oliver Bee RMTRegistered Massage Therapist

Massage therapy · Kitchener–WaterlooBiceps Tendon Tear at the Shoulder

Neck & Shoulder

What It Is

The biceps muscle is located in the front of your upper arm. It helps you to bend the elbow and rotate the arm. Tendons keep the muscle attached to the bones. The biceps tendons attach the biceps to the bones at the elbow and the shoulder. If the biceps tendon tears at the shoulder, you may lose some strength in your arm and have pain when you forcefully turn your arm from palm down to palm up (AAOS, n.d.). Most people need only simple treatments to relieve their symptoms and can still function well with a tear at the shoulder, because the biceps has two attachments at the shoulder and a tear usually involves only one (AAOS, n.d.). Surgery is rarely needed (AAOS, n.d.).

Biceps Tendon Tear at the Shoulder Anatomy

The shoulder is a ball-and-socket joint made up of three bones: the upper arm bone (humerus), the collarbone (clavicle) and the shoulder blade (scapula). The head (ball) of the upper arm bone fits into a rounded socket in the shoulder blade. A combination of muscles and tendons keeps the ball centred in the socket. These tissues are called the rotator cuff; they cover the head of the upper arm bone and attach it to the shoulder blade (AAOS, n.d.).

The upper part of the biceps muscle has two tendons that attach it to the bones of the shoulder. The long head attaches to the top of the shoulder socket, while the short head attaches to a bump on the shoulder blade (the coracoid process) (AAOS, n.d.). The long head is the one most likely to tear (AAOS, n.d.).

If the long head tears completely, you may see a bulge in your upper arm above the elbow (sometimes called a "Popeye" muscle), bruising down the upper arm, and cramping of the biceps when you use your arm hard (AAOS, n.d.).

Not a diagnosis — for more information, contact me or another trusted healthcare provider.

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At Fearless Heart, 25 Dupont St E in Uptown Waterloo, or as a home visit across Kitchener–Waterloo.