Fibular hemimelia is congenital growth deficiency of calf fibular bone. Fibula, may be completely absent, short or partially developed as either upper part or lower part being deficient. In some cases, the lateral ray bones, 4th and 5th metatarsal and toe bones aree undeveloped.
What is the etiology of fibular hemimelia?
It has been postulated in the literature that a failure in the development of lower extrewmity bud may cause fibular hemimelia.
The deformity may present in newborn as either limb shortening, or absence of 5th toe or severe form with all deficiencies alltogether. As the child grows, clinical picture may change. A pediatric orthopedic surgeon should follow the patient. The following clinical findings can be seen:
- Limb shortening
- Complete or partial shortening of fibula
- Femoral head deficiency
- Knee developmental disorders
- Ankle-Foot developmental problems
Fibular hemimelia diagnosis
Diagnosis can be made in intrauterine or neonatal period. Following diagnosis, a radiological analysis is performed for classification of the deformity.
Treatment is planned depending on the severity of the deformity. Exercise, orthotics, and serial surgeries are used in the treatment.