Last reviewed dd mmm yyyy. Last edited dd mmm yyyy
The radial bursa is a continuation of the flexor pollicis longus tendon sheath through the flexor retinaculum to a level 2.5 cm above the wrist joint. The ulna bursa is a similar structure arising from the sheath of the fifth digit and joining with the common flexor sheath at the wrist. It too passes through the flexor retinaculum to end 2.5 cm above the wrist.
Hence ,infection of both 'bursa' may result from direct spread proximally along the associated tendon sheath. Alternatively, a penetrating injury may be the cause.
Treatment is similar to that recommended for tendon infections: open or closed irrigation, leaving a drain in situ and antibiotic cover modified to sensitivities.
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