Complications of the mandibular sagittal split ramus osteotomy associated with the presence or absence of third molars.

Purpose: This study compared the number of unfavorable fractures after sagittal split osteotomies (SSOs) of the mandible when third molars were present or absent.

Patients And Methods: The treatment records of 262 patients (500 SSOs) were retrospectively evaluated. Group 1 consisted of 250 SSOs and concomitant removal of impacted mandibular third molars and group 2 consisted of 250 SSOs with absence of third molars.

Use of Gore-Tex tubing as a conduit for inferior alveolar and lingual nerve repair: experience with 6 cases.

Purpose: This report evaluates treatment outcomes associated with the use of Gore-Tex (GT; W.L. Gore & Associates, Flagstaff, AZ) vein graft tubing as a conduit for repair of inferior alveolar nerve (IAN) and lingual nerve (LN) continuity defects.

Paget-Schroetter syndrome: what is the best management?

Background: The evaluation of 312 extremities in 294 patients with Paget-Schroetter syndrome (effort thrombosis of the axillary-subclavian vein) over 30 years provides the basis for optimal management determination.

Methods And Results: Group I (35 extremities) was initially treated with anticoagulants only. Twenty-one developed recurrent symptoms after returning to work, requiring transaxillary resection of the first rib.

Augmentation genioplasty with hard tissue replacement implants.

Purpose: This study assessed the soft tissue changes produced by the placement of hard tissue replacement (HTR) polymer chin implants for augmentation genioplasty and evaluated the dimensional stability as well as any bony changes associated with the implants.

Patients And Methods: The study group consisted of 18 patients (3 males, 15 females) with an average follow-up of 21.5 months (range, 12 to 44 months).

Upper plexus thoracic outlet syndrome: optimal therapy.

Background: Previously, transaxillary first rib resection alone was not considered adequate therapy for "upper plexus" (median nerve) thoracic outlet syndrome. It was thought that the "combined" approach with upper plexus dissection through a supraclavicular incision in addition to the transaxillary approach was necessary. However, with better understanding of anatomy--that the median nerve receives fibers from C8 and T1 as well as the upper plexus and that muscles that compress the upper plexus attach to the first rib--it is now recognized that first rib removal alone will relieve upper plexus compression.

Molecular cloning of human phosphomevalonate kinase and identification of a consensus peroxisomal targeting sequence.

Two overlapping cDNAs which encode human liver phosphomevalonate kinase (PMKase) were isolated. The human PMKase cDNAs predict a 191-amino acid protein with a molecular weight of 21,862, consistent with previous reports for mammalian PMKase (Mr = 21,000-22,500). Further verification of the clones was obtained by expression of PMKase activity in bacteria using a composite 1024-base pair cDNA clone.