Silicone rubber fossa implant removal via partial arthrotomy followed by arthroscopic examination of the internal surface of the fibrous capsule.

Thirteen temporomandibular joints were examined arthroscopically for evaluation for fibrous encapsulation of silicone elastomer disk replacement implants. Partial arthrotomies were performed with removal of silicone rubber implants, followed by arthroscopic examination of the internal surfaces of the fibrous capsule as a pseudodisk and to verify the continuity of the fibrous barrier between the condyle and the fossa.

Arthroscopic surgery for treatment of temporomandibular joint hypomobility after mandibular sagittal osteotomy.

Arthroscopic surgery is an effective method for treating painful hypomobility of the temporomandibular joint. Decreased range of motion after sagittal ramus osteotomies of the mandible has been reported. Causes may include intra-articular factors.

Comparison of myotoxic effects of lidocaine with epinephrine in rats and humans.

Myotoxic effects of 2% lidocaine with 1:100,000 epinephrine were evaluated in rats and humans. Sprague-Dawley rats were give injections in the left gastrocnemius muscle of 0.5 ml of the lidocaine preparation or a control vehicle; they were killed in groups of four at 0, 8, 24, and 48 hours.