Percutaneous Ultrasound-Guided Peritendinous Injections
The rapid development of ultrasound technology in recent years, particularly with regard to small-parts imaging, has paralleled the increasing number of clinical applications of this modality. One such application is the use of ultrasound to provide image guidance for therapeutic delivery of corticosteroid and local anesthetic. A number of publications have appeared, illustrating the efficacy of this method for the performance of musculoskeletal interventional procedures (1-7). The real-time nature of ultrasound allows continuous observation of needle position, thereby ensuring proper placement and providing continuous monitoring of the distribution of the therapeutic agent during administration of long-acting corticosteroid and anesthetic. The potential deleterious effects of not attaining proper needle placement are well documented (8-13).