Triceps are one of the largest muscle groups in the upper body. Primarily, they help to extend the elbow. They are involved in a ton of different activities. All kinds of pushing and pressing require the involvement of these muscles. About 33% larger than the biceps and brachialis combined, these muscles make up the bulk of the muscle mass of the arms. These are pennate muscles with 3 heads: long, lateral, and medial. The triceps are also prone to injuries. Triceps tendon ruptures occur most commonly in the area of the insertion of the olecranon. Fractures of the radial head are reported as the most common concomitant injuries. In many cases, pre-existing degenerative damage predisposes for tendon injury. These include local steroid injections, anabolic steroid abuse, renal insufficiency requiring dialysis, hyperparathyroidism, lupus erythematosus and Marfan’s syndrome.
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