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Distraction osteogenesis for congenitally short lesser metatarsals
S E Levine1, R S Davidson, J P Dormans
1Department of Orthopaedic Surgery, Union Memorial Hospital, Baltimore, Maryland, USA.
Foot & Ankle International
|April 1, 1995
Summary
Distraction osteogenesis using external fixators effectively lengthened lesser metatarsals in patients. However, complications like infection and joint stiffness occurred, impacting outcomes.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Lesser metatarsal shortening can cause pain and gait issues.
- Distraction osteogenesis offers a method for bone lengthening.
Purpose of the Study:
- To evaluate the efficacy and complications of using a miniature external fixator for lesser metatarsal lengthening via distraction osteogenesis.
Main Methods:
- Six lesser metatarsal lengthening procedures were performed on three patients.
- A miniature external fixator was utilized to achieve distraction osteogenesis.
- Post-lengthening management included external fixator in situ and casting.
Main Results:
- Average metatarsal lengthening was 15.5 mm.
- External fixator was in place for an average of 15.5 weeks.
- Complications included infection, premature healing, fracture, and granulation tissue.
- All metatarsals were lengthened, but two rays had symptomatic stiffness and metatarsalgia.
Conclusions:
- Miniature external fixator distraction osteogenesis can successfully lengthen lesser metatarsals.
- Complication rates, including infection and joint stiffness, require careful consideration.
- Further research may optimize techniques to minimize adverse events and improve functional outcomes.