Extension block splints help to correct the hyperextension at the PIP joint. A progressive extension splint can help improve the DIP flexion deformity. A ring splint, also called a figure eight splint, is placed around the PIP joint to correct deformity in the initial stages for a few weeks. The advantage of a ring splint is that the finger can be bent down freely.
Hand therapy for passive stretching can be combined with splinting. This combination of treatments may increase flexibility and mobility at both the DIP and the PIP joints. Gently straighten the affected finger and hold for 5 secs at the apex of this finger extension. Perform 1 set of 10 repetitions 3 to 5 times per day to promote flexibility in the finger joints.
Strengthening exercises help to maintain the range of motion, strengthen weak muscles, and improve function in the fingers and hands.
Range of motion Exercises:
Finger passive range of motion is recommended to maintain flexibility and range of motion in the fingertips.
Place the affected hand's elbow on a flat surface, such as a table, and lift the forearm straight up. Slowly bend the fingers to the middle of the palm, one at a time. Hold for 5 secs at the apex of each finger flexion. To improve flexion and range of motion in the fingers, do 1 set of 10 repetitions 3 times a day.
Stand in front of the table, and place the affected hand on the table's surface with the palm flat and the fingers extended. Lift each finger as far off the table as possible, one at a time, hold for 5 secs at the apex of the finger extension, and then relax. Perform 1 set of 10 repetitions 3 times per day. Pick up small objects such as coins and marbles with the injured finger and thumb promotes joint health and flexibility in addition to finger extension, squeeze a rubber ball, and hold each squeeze for 5 secs will help the injured hand's range of motion and flexibility.
Finger Adduction and Abduction:
Stand tall and bend the elbow to a 90° angle. Spread the fingers as wide as possible by bringing the arm of the affected finger to the side of the body. Hold for 5 seconds before reuniting the fingers. Perform 1 set of 10 repetitions 3 times a day to increase the circulation of oxygenated blood to the fingers and improve joint health.