The Long-term Relationship between Duration of Treatment and Contracture Resolution Using Dynamic Orthotic Devices for the Stiff Proximal Interphalangeal Joint: A Prospective Cohort Study

Setting tension for a handmade capener orthosis used to correct PIP extension deficit. The tip of the Haldex gauge is applied to the distal end of the orthosis over the middle phalanx and pushed down until the correct tension is reached. The Velcro strap is then used to secure the orthosis in the set position.

The tip of the Haldex gauge is passed through the end of the elastic band on the traction of a dynamic flexion orthosis to set tension. The elastic band and Haldex applicator are pulled proximally until the desired tension is reached. The Velcro loop attached to the end of the elastic band is then secured to the proximal edge of the thermoplastic base.

Least square means estimates (95% confidence intervals) for active range of motion (AROM) flexion in degrees over 17 weeks of orthotic treatment. Adjusted for AROM flexion at baseline, joint stiffness, time since injury, diagnosis, and weekly total end range time.

Least square means estimates (95% confidence intervals) for torque range of motion (TROM) flexion in degrees over 17 weeks of orthotic treatment. Adjusted for TROM flexion at baseline, joint stiffness, time since injury, diagnosis, and weekly total end range time.

Least square means estimates (95% confidence intervals) for AROM extension in degrees over 17 weeks of orthotic treatment. Adjusted for AROM extension at baseline, joint stiffness, time since injury, diagnosis, and weekly total end range time.

Least square means estimates (95% confidence intervals) for TROM extension in degrees over 16 weeks of orthotic treatment^a. Adjusted for TROM extension at baseline, joint stiffness, time since injury, diagnosis, and weekly total end range time. ^aOnly 16 weeks of data were available for analysis.