Limb lengthening history, evolution, complications and current concepts

Area of Science:

• Orthopedic Surgery
• Regenerative Medicine
• Biomechanical Engineering

Background:

• Limb lengthening presents significant challenges for patients and surgeons, demanding extensive postoperative care.
• While operative techniques are established, the prolonged recovery period can compromise outcomes.

Purpose of the Study:

• To review the historical development, biological underpinnings, potential complications, and contemporary approaches to limb lengthening.
• To examine the evolution of fixation methods from external devices to internal lengthening nails.

Main Methods:

• Review of historical literature and current concepts in limb lengthening.
• Analysis of the Ilizarov technique and its evolution into modern fixation systems.
• Discussion of complication rates and evolving indications for limb lengthening procedures.

Main Results:

• Ilizarov's distraction histeogenesis remains central, with fixation evolving from external to internal lengthening nails.
• Newer internal nails mitigate some external fixation drawbacks but introduce their own complications.
• Indications have broadened from lower limb inequality to include upper extremity and cosmetic lengthening, with complication rates varying widely.

Conclusions:

• Limb lengthening techniques have advanced significantly, offering expanded indications.
• Despite innovations, managing complications and patient commitment remain critical aspects of limb lengthening.
• Cosmetic limb lengthening is now feasible with improved devices, though complication awareness is essential.