The Digit Widget was developed by Hand Biomechanics Lab to reverse PIP flexion contractures. The device utilizes the principle that a gentle force applied over time will stimulate growth of the contracted soft tissues. Previous devices have used joint traction to achieve extension (Literature Summary); the Agee Digit Widget applies an extension torque to reverse the contracture. In contrast to the traction devices, the design of the Digit Widget does not prohibit finger flexion while exerting the extension torque. This permits the patient to remain more functional during treatment in addition to minimizing joint stiffness.
PIP flexion contractures are a result of a force imbalance around the joint. Either there is too little extensor force, too much flexion force or a combination of the two. Although the Digit Widget has been found to be very effective in reversing PIP flexion contractures, maintenance of joint extension relies on the identification and treatment of the force imbalance causing the contracture. A comprehensive treatment plan should be developed for each patient. A patient showed us a neat trick for removing the device with one hand. Click here to see his technique. | 
