Flexor Tendon Pulley System Injuries are most often experienced by rock climbers who spend much of their activity tightly gripping rock faces and supporting a large part of their body weight on one or two fingers.

The pulley system features thickened parts of the tendon sheath that hold the tendon in place against the bone. Injury to the pulley system is usually accompanied by a popping sound, pain and swelling.

Conservative treatment includes immobilization, ring splints, occupational therapy and cortisone injection, whereas severe cases may demand surgical intervention.