Aspiration of joints and soft tissue injections.

Musculoskeletal and connective tissue disorders are commonly encountered in primary care practice. These disorders include varieties of bursitis, tendinitis, myositis, arthritis, and related conditions. A certain group of these disorders lend themselves to diagnosis by needle aspiration or to treatment by injections. The conditions discussed in this article include subacromial bursitis, supraspinous and bicipital tendinitis, tennis elbow, de Quervain's syndrome, trigger finger, inflammation of the knee, ganglion, and muscle trigger points.