Fig. 3.

After plating, forearms were immobilized with an external fixator and mounted on custom jig. Suture was used to attach the FPL and FDP tendons to a motor. Contact pressure between the respective tendons and plates was measured with a thin plastic sensor, from which pressure measurements were obtained. Once the sensor was secured, the arm soft tissue was closed and the jig was run for five cycles of flexion and extension for each tendon. FDP, flexor digitorum profundus; FPL, flexor pollicis longus.