Costochondral grafts for reconstruction of acquired mandibular defects involving the temporomandibular joint: Report of two cases.

Autogenous reconstruction of temporomandibular joint (TMJ) with costochondral graft (CCG) has been a popular method of growth center transfer in children. However, unpredictable growth pattern of CCG has been reported in children that often leads to dentofacial deformities in future. This institutional study describes the results of mandibular reconstruction with CCG in two growing children, one with plexiform ameloblastoma of mandible and the other with unilateral TMJ ankylosis. Long-term follow-ups showed a significant growth of the grafts in both the patients. However, there was a lack of uniformity in the amount and rate of growth. The authors support the theory that CCG possesses innate growth potential and is a desirable option for reconstruction of acquired mandibular defects involving the TMJ in pediatric population. However, regular postoperative monitoring is necessary for such patients as the graft shows an unpredictable growth pattern.