Proportional Condylectomy for the Treatment of Unilateral Condylar Hyperplasia With Maloclussion: Role of Point-of-Care Manufacturing Surgical Guides and Intraoperative Computed Tomography to Avoid Secondary Orthognatic Surgery.

Condylar hyperplasia (CH) is a complex, usually unilateral pathology affecting the jaw, leading to facial asymmetry and malocclusion. Its etiology is unclear, with potential links to endocrine disorders, trauma, and genetic factors. Unilateral condylar hyperplasia (UCH) typically presents in young patients but can occur at any age. Common symptoms include progressive facial asymmetry, malocclusion, and temporomandibular joint dysfunction. Diagnostic imaging like single positron emission computed tomography helps assess condylar activity. Treatment aims to halt condylar growth and correct facial asymmetry, commonly through high condylectomy, which involves removing the upper 3 to 5 mm of the condylar head. Recently, proportional condylectomy, using point-of-care manufacturing 3-dimensional-cutting guides and intraoperative computed tomography control, has shown promising results, potentially eliminating the need for orthognathic surgery. This technique was successfully applied in a case involving a 29-year-old woman, resulting in normalized occlusion and aesthetics after subsequent orthodontic treatment, with stable outcomes 1-year post-treatment.