Lateral pterygoid myotomy with reattachment to the condylar neck: an adjunct to restore function after total joint reconstruction

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics
Chad P CollinsPatrick C Collins

Abstract

The purpose of this study was to investigate the results of performing a lateral pterygoid myotomy with reattachment to the condylar stump to restore more normal function after total joint reconstructive surgery. Twenty-four joints were reconstructed in 14 patients with stock Christensen chrome-cobalt prostheses. Patients were separated into 2 groups. Group I consisted of 4 joints without reattached lateral pterygoid muscle (-LPM), and group II consisted of 20 joints with reattachment of the lateral pterygoid muscle to the condylar stump (+LPM). Patients were evaluated at an average of 15 months postoperatively to assess mandibular movement. Group I was compared with group II, and statistical analysis was performed through the use of the Mann-Whitney test. Patient satisfaction was evaluated by using postoperative questionnaires. Group II had an average interincisal opening 7.3 mm greater than Group I (P <.001). Lateral movements averaged 3.86 mm in Group II versus 0.5 mm in Group I (P <.05). Protrusion was 2.83 mm greater in Group II than in Group I (P = 0.53). The reattachment of the lateral pterygoid muscle to the condylar stump during total joint reconstructive surgery may provide the patient with greater interincisal openin...Continue Reading

Citations

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