Iliac crest bone grafting for mandibular reconstruction: 10-year experience outcomes.

PURPOSE: To evaluate 10-year patient data related to mandibular reconstruction with NVBG at a tertiary academic center. PATIENTS AND METHODS: Sixty patients with mandibular mandibular reconstruction were included. Patients were divided to continuity defect and non-continuity defect. Pathology lesion, immediate reconstruction, smoking habit, medical comorbidities, site and size of the defect, surgical approach, intraoperative perforation, cadaveric bone use, and maxilla-mandibular fixation use were analyzed as factors of influence on success. Success was defined as maintenance of more than 50% of graft for non-continuity defects (NCD) and bone continuity and stability for continuity defect (CD), and absence of infection on last follow up upon clinical and radiographic examination. Complications were classified as minor or major. RESULTS: The reconstruction was successful in 28 (87%) of CD patients and 23 (82.1%) of NCD patients. Analyses showed that the size of defect was significantly associated with failure. All 4 failed cases of CD had defects more than 9 cm. Four patients had major complications and 43 minor complication. CONCLUSIONS: Nonvascularized iliac crest bone grafts are highly successful in mandibular continuity reconstruction for non-Cancer patients and should be considered as first choice for defects less than 9 cm. They are less predictable for defects larger than 9 cm but can be considered in these cases with osteoconductive cribs. Symphysis involvement may or may not be associated with lower success rate if our protocol is followed.

The surgical management of cephalalgia.

PURPOSE OF REVIEW: Management of headache disorders is not part of most craniomaxillofacial surgery practices; however there are certain indications for surgical management of headaches by the craniomaxillofacial surgeon. RECENT FINDINGS: Migraine headaches are the most amenable to surgical management and while the exact mechanism of migraine is unknown, a central or peripheral trigger such as compressive neuropathy of trigeminal nerve branches leading to neurogenic inflammation has been suggested. The primary management for episodic migraine headache should be lifestyle modification and medication, whereas for chronic migraine (>15 headache days/month) use of medication and botulinum neurotoxin is effective, whereas some patients may choose to explore surgical options. Trigger site decompression for chronic migraine surgically relieves anatomic impingement at various sites and has been shown to reduce by at least 50% the frequency, intensity, and duration of headaches in over 85% and elimination of headaches in almost 60%. Trigger points may also lead to exacerbation of cluster headaches and treatment with botulinum neurotoxin may reduce attacks. SUMMARY: Trigger site decompression is an effective treatment for chronic migraine, as are botulinum neurotoxin injections in reducing attacks in cluster headaches. The craniomaxillofacial surgeon is uniquely qualified to treat these primary headache disorders.

Deep space neck infection: principles of surgical management.

Knowledge of the management of infections of the deep spaces of the neck is essential to the daily practice of oral and maxillofacial surgery. Timely decisions must be made through the acute course of the disease. Interventions must be performed with the appropriate surgical skill. The surgeon must decide on medical and surgical management, including antibiotic selection, how to employ supportive resuscitative care, when to operate, what procedures to perform, and how to secure the airway. To make these decisions the surgeon must understand the anatomy of the region and the etiology of infection, appropriate diagnostic workup, and medical and surgical management. This article provides a review of these pertinent topics.

Preparation of the neck for microvascular reconstruction of the head and neck.

Reconstruction of congenital, developmental, or acquired head and neck defects remains a significant challenge for the oral and maxillofacial surgeon. Microvascular free tissue transfer has several advantages over nonvascularized bone grafts and pedicled soft tissue flaps that currently make it the modality of choice for the reconstruction of extirpative defects of the head and neck. Preoperative planning must include detailed attention to the technical aspects of the microvascular procedure. This includes a thorough understanding of the vascular anatomy of the patient's neck; vascular anatomy of the various flaps including pedicle lengths; and a knowledge of how to facilitate microvascular surgery in the neck and to manage complicating factors in the difficult neck.

Computed tomographic angiography as an aid to clinical decision making in the selective management of penetrating injuries to the neck: a reduction in the need for operative exploration.

BACKGROUND: Improvements in imaging technology, particularly computed tomographic angiography (CTA), have altered the management of patients with penetrating injuries in the neck. The purpose of this retrospective study is to evaluate our 5-year experience with the management of penetrating injuries to the neck, to the further elucidate the role of CTA in clinical decision making, and to assess treatment outcome. METHODS: Clinical variables were collected and evaluated on all patients with penetrating injuries to the neck presenting to the Legacy Emanuel Hospital Trauma Service from 2000 to 2005. For comparison, the patients were divided into two groups based upon whether the patient had received a CTA before operative intervention: group 1, CTA; group 2, no CTA. A statistical analysis using the Fisher exact test and t test was performed to analyze whether the rate of neck exploration or the findings at the time of neck dissection were significantly different between the groups. RESULTS: Of the 120 consecutive patients with penetrating injuries to the neck, 55 were excluded from the study because the injury was superficial, the patient died before operative intervention, or they underwent emergent neck exploration to control hemorrhage. Sixty-five patients with neck injuries penetrating the platysma were identified that met the criteria for inclusion in the study. Group 1 (CTA) consisted of 24 patients and group 2 (no CTA) had 41 patients. Group 1 (CTA) had significantly fewer formal neck explorations (N = 6) compared with group 2 (no CTA) (N = 27) (p < 0.01). All six of the operations in the CTA group had clear indications for and positive findings on surgical exploration, and there were no clinically significant missed injuries. Of the 27 patients in group 2 who underwent neck exploration, only 14 had a positive finding, 4 of which were simply superficial bleeding vessels, yielding a rate of negative neck exploration of 48%, compared with 0% for group 1 (p < 0.01). The number of adjunctive studies such as esophagography, angiography, and various endoscopic procedures were similar in both groups. CONCLUSION: The management of stable patients with penetrating injuries to the neck that penetrate the platysma has evolved at our institution into selective surgical intervention based on clinical examination and CTA. The use of CTA has resulted in fewer formal neck explorations and virtual elimination of negative exploratory surgery.

The effects of preoperative anxiety on intravenous sedation.

Anxiety is known to cause feelings of uneasiness, tension, and nervousness, and previous studies have noted that anxiety and its effects may have an effect on out-patient sedation for patients undergoing surgical procedures. In this study, we assess the effects of anxiety on 25 outpatients undergoing intravenous sedation for third molar extraction. Before the procedure, subjects completed the State-Trait Anxiety Inventory, and intraoperative patient movement was assessed using a subjective scale. We found that patients with a high level of preoperative anxiety had a greater degree of average intraoperative movement (P = .037) and also required a greater amount of propofol to maintain a clinically acceptable level of sedation (P = .0273) when compared with patients with less preoperative anxiety. Increased state anxiety and trait anxiety serve as predictors for an increased total dose requirement of propofol to maintain an acceptable level of sedation (r2 = 0.285, P = .0060, and r2 = 0.233, P = .0146, respectively). An increased level of trait anxiety was also a predictor of an increased degree of average intraoperative movement (r2 = 0.342, P = .0022). Patients who exhibit a high level of preoperative anxiety require a greater total dose of propofol to achieve and maintain a clinically acceptable level of sedation and are more prone to unwanted movement while under sedation.