Acromegaly is a hormonal disorder that results from excess growth hormone (GH) after the growth plates have closed. Surgical orthodontic treatment has often been performed since many cases have abnormal growth of the tongue and jaw bone. We report a case of acromegaly for which surgical orthodontic treatment was performed.
The patient was a 28-year-old man with mandibular prognathism. His main complaints were occlusal disorder and mandibular prognathism. Surgical orthodontic treatment was performed after surgical treatment for acromegaly. Since there was no sign of acromegaly after surgery, a combination of Le Fort I osteotomy and bilateral sagittal split osteotomy was performed after preoperative orthodontic treatment to correct the jaw deformity. The occlusal relationship was stable and there was no recurrence at two years after surgery.
Orthognathic surgery for patients with acromegaly has usually been bilateral sagittal splitting osteotomy in Japan, and tongue reduction has also been carried out simultaneously in many cases. A combination of Le Fort I osteotomy and bilateral sagittal split osteotomy has been increasingly performed in recent years. The outcomes have been good in almost all cases including the present case. However, there have been some reports of recurrence of acromegaly, and long-term follow-up is therefore necessary after orthognathic surgery.