Dynamic Rather than Static Procedures in Correcting Claw Deformities Due to Ulnar Nerve Palsy

Area of Science:

• Orthopedic Surgery
• Neurosurgery
• Hand Surgery

Background:

• Claw deformity is often associated with ulnar nerve palsy.
• Static tendon transfers may oversimplify treatment, neglecting intrinsic muscle deficits.
• Dynamic procedures aim to restore intrinsic muscle function.

Purpose of the Study:

• To evaluate the effectiveness of dynamic tendon transfers in correcting claw deformity.
• To assess the impact of these procedures on intrinsic muscle function and grip strength.

Main Methods:

• A modified Stiles-Bunnell flexor digitorum superficialis tendon transfer was utilized.
• The procedure reconstructs deficient intrinsic forces to address claw deformity.

Main Results:

• Consistent correction of claw deformity was achieved.
• Improvements in tendon synchrony and grip strength were observed.
• The dynamic approach partially restored intrinsic musculature function.

Conclusions:

• Dynamic tendon transfers, despite perceived complexity, effectively correct claw deformity.
• This method improves function in patients with ulnar nerve palsy.
• Modified flexor digitorum superficialis tendon transfer is a viable option for restoring hand function.