Integrated vs. Classical Limb Lengthening: A Meta-Analysis (2020)

Study Question

Sheridan, Fragomen, and Rozbruch compared classical external fixation with a broad integrated category that included lengthening over a nail, lengthening then nailing, and fully implantable nails. The source literature included different bones, indications, devices, and eras. ^[1]

Reported Pooled Findings

Integrated approaches were associated with shorter external-fixator time and favorable pooled healing-index and complication outcomes. Those findings support the rationale for reducing frame exposure and using internal fixation in selected cases.

Why Superior in the Title Is Not a Universal Rule

The comparisons were not one randomized trial of interchangeable patients. Technique selection, case complexity, era, center experience, and reporting can influence outcomes. LON, LATN, and fully internal nails also have different operations and risks and should not be treated as one device choice.

Decision Limits

• Pooled averages do not identify the best method for one anatomy or indication.
• Less frame time does not remove deep infection, implant, nerve, joint, or reoperation risk.
• A historical meta-analysis cannot establish current device availability or recall status.
• Provider-specific outcomes and current instructions remain necessary.