Central slip tenotomy for chronic mallet finger deformity

Area of Science:

• Orthopedic Surgery
• Hand Surgery
• Reconstructive Surgery

Background:

• Chronic mallet finger deformity presents a significant challenge in hand function.
• Restoring extensor lag and joint alignment is crucial for patient recovery.

Purpose of the Study:

• To evaluate the efficacy of central slip tenotomy in treating chronic mallet finger deformity.
• To assess the impact of this procedure on extensor lag and proximal interphalangeal joint alignment.

Main Methods:

• Twenty patients with chronic mallet finger deformity were included in the study.
• Central slip tenotomy was performed as the primary surgical intervention.
• Preoperative and postoperative range of motion and joint alignment were measured.

Main Results:

• Seventeen patients with normal preoperative passive motion showed significant improvement.
• Average extensor lag at the distal joint decreased from 37 degrees to 9 degrees postoperatively.
• Average recurvatum at the proximal interphalangeal (PIP) joint improved, with postoperative extensor lag less than 2 degrees.

Conclusions:

• Central slip tenotomy is an effective treatment for chronic mallet finger deformity.
• The procedure significantly restores extensor lag and improves PIP joint alignment.
• This surgical approach offers a viable option for improving hand function in affected patients.