Evaluating the Effectiveness of Distraction Lengthening in Traumatic Hand Amputations

Area of Science:

• Orthopedics
• Regenerative Medicine
• Trauma Surgery

Background:

• Fingers, especially the thumb and index finger, are prone to injuries causing functional impairment.
• Traditional reconstructive surgeries for digital shortening often lead to multiple procedures and complications.
• Distraction lengthening presents a minimally invasive alternative for digital lengthening, stimulating bone and soft tissue regeneration.

Purpose of the Study:

• To evaluate the efficacy and functional outcomes of distraction lengthening in patients with traumatic digital shortening.
• To assess the potential of distraction histogenesis in digit reconstruction.

Main Methods:

• Prospective observational cohort study of 11 trauma patients with digital shortening.
• Utilized a unilateral mini external fixator for gradual distraction (1 mm/day) post-osteotomy.
• Monitored healing via radiographs and assessed functional recovery, length gained, healing index, and patient satisfaction over 1 year.

Main Results:

• Achieved an average length gain of 20.2 mm for a mean preoperative shortness of 20.4 mm.
• Mean external fixation and consolidation times were 111.3 and 91.36 days, respectively (Healing Index: 47.5 days/cm).
• Demonstrated significant improvements in functional grip, thumb web space, and overall hand utility.

Conclusions:

• Distraction lengthening is a reliable and effective method for functional restoration in traumatic digital shortening.
• This technique is minimally invasive, preserves digital sensitivity, prevents stiffness, and avoids bone grafting.
• Successful outcomes depend on stable fixator use, surgical technique, and patient adherence.