ABSTRACT
The purpose of this study was to determine the accuracy and the specificity of an
optimum technique of posterior talocalcaneal/posterior subtalar (PST) joint arthrography
and anesthetic injection in patients with hindfoot pain. Fifty-five PST joints were
studied in 55 patients. The posteromedial approach was used in the first 24 patients,
followed by an anterolateral approach in 31 patients. The ease of performance, success
of confirming PST needle position, and adverse effects were noted. After contrast
injection, a combination of 1% lidocaine and 0.5% bupivacaine was injected. Results
consisted of 47 arthrographically confirmed PST injections. The posteromedial approach
was deemed more difficult; three patients had tendon sheath opacification and four
had unwanted anesthesia of the toes. The anterolateral approach was technically easier
and no extra-articular structures were visualized or anesthetized. Therefore, PST
arthrography with anesthetic injection is optimized with an anterolateral approach.
KEYWORDS
Abnormalities - ankle technology - arthrography
