What is the recommended position for a trigger finger orthosis?

What is the recommended position for a trigger finger orthosis?

• A. MP extension for 6-10 weeks day and night
• B. PIP extension with MCP flexion
• C. MP flexion with IPs extended
• D. Wrist extension

Answer: (A)

When treating trigger finger, the goal is to unload the site where the tendon gets stuck—the A1 pulley at the metacarpophalangeal (MCP) level. Holding the MCP joint in extension prevents the flexor tendon from bunching and snagging as it slides under the pulley, giving the pulley a chance to heal and for smooth glide to resume. That’s why an orthosis that keeps the MCP joint extended for several weeks (often 6–10 weeks) is recommended, usually with the IP joints allowed to move so you don’t lose overall finger function. Immobilizing other joints, like the PIP while the MCP is flexed, doesn’t address the pulley at the MCP level, and simply immobilizing the wrist won’t prevent triggering.

When treating trigger finger, the goal is to unload the site where the tendon gets stuck—the A1 pulley at the metacarpophalangeal (MCP) level. Holding the MCP joint in extension prevents the flexor tendon from bunching and snagging as it slides under the pulley, giving the pulley a chance to heal and for smooth glide to resume. That’s why an orthosis that keeps the MCP joint extended for several weeks (often 6–10 weeks) is recommended, usually with the IP joints allowed to move so you don’t lose overall finger function. Immobilizing other joints, like the PIP while the MCP is flexed, doesn’t address the pulley at the MCP level, and simply immobilizing the wrist won’t prevent triggering.