Background: Tibial hemimelia is a rare congenital anomaly, it may
occur in isolated form or combined with other congenital anomalies.
Different classification systems had been used for classification. While
inferior tibiofibular joint diastasis is a well-known accompanying
deformity in subtypes of different classification systems; complete
diastasis of tibia and fibula is not included in either of classification
Methods: Case 1: A 15 days infant presented to our unit with complete
diastasis of tibia and fibula from the level of the knee joint. Each bone
has its own skin envelop.
Case 2: A four weeks old boy with a partial distal diastasis of tibia and
fibula from the level of mid leg downward, with almost completely
separate skin envelop for each part of the bone.
A search in the English literature about reported cases with complete
diastasis of tibia and fibula and different classification systems for
tibial hemimelia was done.
Result: No reported cases in the literature with complete diastasis of
tibia and fibula.
Conclusion: We suggest modification of the current classification
systems for tibial hemimelia to include complete diastasis of tibia and
fibula as a variant.