The American journal of orthopedics
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To investigate the accuracy of intra-articular injection of the basal joint and to determine the rate of soft-tissue extravasation of injected material in successful intra-articular injection, we injected the basal joint of 30 hands with radiopaque dye (with fluoroscopy guiding needle placement in 8 cases) and then used fluoroscopy to check injection accuracy. Results were recorded depending on the location of the injected dye on fluoroscopic examination. ⋯ This study's accuracy rate for intra-articular injection of the basal joint is comparable to the rates reported for injection of larger joints. There is a relatively high soft-tissue extravasation rate for successful intra-articular injection.