From the Research
The pinky finger flexion tendon, specifically the flexor digitorum profundus (FDP) and flexor digitorum superficialis (FDS), allows for bending of the little finger and requires prompt medical attention and often surgical repair within 7-10 days for optimal outcomes in case of injuries. The FDP attaches to the base of the distal phalanx (fingertip bone) and enables flexion of all finger joints, while the FDS attaches to the middle phalanx and flexes the proximal and middle joints. Following surgery, a structured rehabilitation protocol typically involves protected motion with a specialized splint for 4-6 weeks, followed by progressive strengthening exercises for another 4-6 weeks, as discussed in 1. Complete recovery may take 3-4 months. These tendons work in coordination with intrinsic hand muscles to provide fine motor control and grip strength, which is why proper treatment and rehabilitation are essential to restore full pinky finger function. Some studies suggest that non-steroidal anti-inflammatory drugs (NSAIDs) may be beneficial in improving the range of motion of the involved fingers after flexor tendon injury, as seen in 2 and 3, where ibuprofen was found to be effective in improving the range of motion and reducing adhesion formation. However, the current literature does not provide sufficient evidence for or against the use of NSAIDs following acute injury or surgical repair of the tendon-bone interface, as noted in 4. It is essential to consider the potential effects of NSAIDs on tendon healing and the development of peritendinous adhesions when making treatment decisions. In the context of trigger finger, physical therapies such as external shock wave therapy (ESWT) and ultrasound therapy (UST) may be effective in reducing pain and trigger severity, and improving functional level and quality of life, as discussed in 5. Key points to consider in the treatment of pinky finger flexion tendon injuries include:
- Prompt medical attention and surgical repair within 7-10 days for optimal outcomes
- Structured rehabilitation protocol with protected motion and progressive strengthening exercises
- Potential benefits of NSAIDs in improving range of motion and reducing adhesion formation
- Consideration of physical therapies such as ESWT and UST for trigger finger.