A conceptual framework for treating jaw deformities in patients with abnormal condyles: preservation versus replacement of the glenoid fossa-disc-condyle-ramus

This article outlines a conceptual approach to the reconstruction of jaw deformities associated with abnormalities in the mandibular condyle. The authors describe a hierarchy of reconstruction, emphasizing use of the least invasive and progressing to the most complex and invasive techniques, depending on the nature and severity of the underlying deformity, prior operations, patient age, and stage of growth. Consider joint preservation orthognathic surgical correction, followed by biological techniques for replacement of the condyle, and avoid replacing a functional temporomandibular joint based only on radiographic remodeling and concerns about potential future flare-ups of disease based on anecdotal data.

Common Patterns of Developmental Dentofacial Deformities: A Biologic Classification System

Jaw disharmonies that are recognized after birth and that present in association with the pre-pubertal growth spurt are called developmental dentofacial deformities. These deformities occur during the normal growth phase of the face with degrees of either excess or deficiency in one or more vectors of the jaws. Clinical observation combined with radiographic analysis confirms that developmental dentofacial deformities tend to occur in 6 distinct and repetitive biologic patterns. Once the individual’s jaw growth pattern is known, the natural progression of their deformity, the functional consequences on speech articulation, chewing ability, swallowing mechanism, and breathing, and the locations of skeletal dysmorphology that require surgical intervention fall into place. The purpose of the manuscript is to review the 6 common patterns.

Reconstruction of residual cleft nasal deformities in adolescents: Effects on social perceptions

PURPOSE

The investigators hypothesized that a layperson's social perceptions of a primarily repaired adolescent cleft lip and palate (CL/P) patient is more favorable after definitive nasal reconstruction with regard to perceived social traits.

METHODS

The investigators implemented a survey comparing layperson's social perceptions of 6 personality traits, 6 emotional expression traits, and 7 perceptions of interpersonal experiences before and >6 months after definitive nasal reconstruction in CL/P adolescent subjects by viewing standardized facial photographs. The sample was composed of consecutive CL/P subjects treated by one surgeon using a consistent technique involving a rib cartilage caudal strut graft through an open approach. Five non-cleft adolescent subjects who underwent cosmetic rhinoplasty involving a septal cartilage caudal strut graft through an open approach were used as a comparison group. The outcome variable was change in 6 perceived personality, 6 emotional expression traits studied, and 7 perceptions of interpersonal experiences. Descriptive and bivariate statistics were computed (p-value <0.05).

RESULTS

The sample was composed of 10 consecutive CL/P subjects and 5 non-cleft adolescent comparison subjects. 500 respondents (raters) completed the survey. The respondents were 54% male with 56% age 25 to 34. After definitive cleft nasal reconstruction, study subjects were perceived to be significantly more attractive (p = 0.04) and less threatening (p = 0.04). They were also perceived as less angry (p < 0.01), sad (p < 0.01), or disgusted (p < 0.01) than prior to surgery. The subjects were also perceived to be less likely to have negative interpersonal experiences (p < 0.01).

CONCLUSION

We confirmed that laypeople consistently report positive changes in adolescent CL/P subject's perceived social traits after definitive cleft nasal reconstruction. Overall, the positive changes were largely comparable between the cleft and non-cleft groups.

Orthognathic Surgery Has a Significant Positive Effect on Perceived Personality Traits and Perceived Emotional Expressions in Long Face Patients

PURPOSE

Crowdsourcing is increasingly being used in medical research to obtain the opinion and perception of laypeople. We hypothesized that a layperson's perception of a patient with long face dentofacial deformity is more favorable after orthognathic surgery than before surgery regarding perceived personality traits and emotional facial expressions.

MATERIALS AND METHODS

We implemented a survey, distributed through Amazon.com's Mechanical Turk crowdsourcing platform, to compare 6 perceived personality traits and 6 perceived emotional traits before and after (>6 months) orthognathic surgery in patients through standardized photographs (3 facial views). The sample was composed of 20 patients randomly selected from our long face dentofacial deformity database, treated by 1 surgeon, all having undergone bimaxillary and chin orthognathic surgery. The outcome variable was change in each of the 12 perceived personality and emotional traits studied. Descriptive and bivariate statistics were computed. P < .05 was considered significant.

RESULTS

A total of 500 respondents (raters) completed the survey in less than 10 hours. The respondents were mostly men (60%), aged 25 to 34 years (57%), white (71%), and college graduates (53%) with an annual income between $20,000 and $50,000 (48%). After jaw reconstruction and completion of orthodontic treatment, long face patients as a group were perceived to be significantly more trustworthy, more friendly, more intelligent, more attractive, and more dominant and also perceived as happier and less angry, sad, afraid, or disgusted than they were before surgery (P < .05).

CONCLUSIONS

We confirmed that laypersons consistently report positive changes in a long face patient's perceived personality traits and perceived emotional expressions after bimaxillary and chin orthognathic surgery.

Primary Maxillary Deficiency Dentofacial Deformities: Occlusion and Facial Esthetic Surgical Outcomes

PURPOSE

The purpose of this study was to document the malocclusion and facial dysmorphology in patients with primary maxillary deficiency (PMD) and chronic obstructive nasal breathing before treatment and the outcomes after bimaxillary orthognathic, genioplasty, and intranasal surgery.

MATERIALS AND METHODS

A retrospective cohort study of patients with PMD undergoing bimaxillary orthognathic, chin, and intranasal surgery was implemented. The predictor variables were grouped into demographic, anatomic, operative, and longitudinal follow-up categories. The primary outcome variables were the initial postoperative occlusion achieved (T₂; 5 weeks postoperatively) and that maintained long-term (T₃ or T₄; >2 years after surgery). Six occlusion parameters were assessed: overjet, overbite, coincidence of dental midlines, Angle classification, and molar vertical and transverse positions. A second outcome variable was facial esthetic results. Photographs were analyzed to document 7 facial contour characteristics.

RESULTS

Sixty-six patients met the inclusion criteria. Age at operation averaged 22 years (15 to 55 yr). The study included 18 women (27%). Most patients (57 of 66; 86%) achieved and maintained a favorable occlusion for each parameter studied long-term (mean, 5 yr). The need for a 3-segment Le Fort I was strongly associated with long-term posterior malocclusion. Facial dysmorphology before surgery included the appearance of a prominent chin (56%), flat labiomental fold (61%), prominent lower lip (88%), prominent nose (77%), sunken midface (100%), flat cheekbones (82%), and recessed upper lip (73%). Before surgery, 82% of patients exhibited at least 5 of the 7 key facial contour deformities. Correction of all 7 facial contour deformities was confirmed in 92% of patients in the long-term. In 8% of patients, an overly prominent-appearing chin persisted.

CONCLUSION

Using orthognathic techniques, most patients with PMD achieved and maintained a corrected occlusion long-term. In unoperated patients, a "facial esthetic type" was identified. Bimaxillary orthognathic and chin surgery proved effective in correcting associated facial dysmorphology in most patients.

Long-Face Dentofacial Deformities: Occlusion and Facial Esthetic Surgical Outcomes

PURPOSE

The purpose of this study was to document malocclusion and facial dysmorphology in a series of patients with long face (LF) and chronic obstructive nasal breathing before treatment and the outcomes after bimaxillary orthognathic, osseous genioplasty, and intranasal surgery.

MATERIALS AND METHODS

A retrospective cohort study of patients with LF undergoing bimaxillary, chin, and intranasal (septoplasty and inferior turbinate reduction) surgery was implemented. Predictor variables were grouped into demographic, anatomic, operative, and longitudinal follow-up categories. Primary outcome variables were the initial postoperative occlusion achieved (T₂; 5 weeks after surgery) and the occulsion maintained long-term (>2 years after surgery). Six key occlusion parameters were assessed: overjet, overbite, coincidence of dental midlines, canine Angle classification, and molar vertical and transverse positions. The second outcome variable was the facial esthetic results. Photographs in 6 views were analyzed to document 7 facial contour characteristics.

RESULTS

Seventy-eight patients met the inclusion criteria. Average age at surgery was 24 years (range, 13 to 54 yr). The study included 53 female patients (68%). Findings confirmed that occlusion after initial surgical healing (T₂) met the objectives for all parameters in 97% of patients (76 of 78). Most (68 of 78; 87%) maintained a favorable anterior and posterior occlusion for each parameter studied long-term (mean, 5 years 5 months). Facial contour deformities at presentation included prominent nose (63%), flat cheekbones (96%), flat midface (96%), weak chin (91%), obtuse neck-to-chin angle (56%), wide lip separation (95%), and excess maxillary dental show (99%). Correction of all pretreatment facial contour deformities was confirmed in 92% of patients after surgery. Long face patients with higher preoperative body mass index levels were more likely to have residual facial dysmorphology after surgery (P = .0009).

CONCLUSION

Using orthognathic surgery techniques, patients with LF dentofacial deformity achieved the planned occlusion and most maintained the corrected occlusion long-term. In unoperated patients with LF, a "facial esthetic type" was identified. Orthognathic surgery proved effective in correcting associated facial dysmorphology in most patients.

"Silent" Sleep Apnea in Dentofacial Deformities and Prevalence of Daytime Sleepiness After Orthognathic and Intranasal Surgery

PURPOSE

The purposes of this study were to determine the occurrence of undiagnosed "silent" obstructive sleep apnea (OSA) in dentofacial deformity (DFD) patients at initial surgical presentation and to report on the level of daytime sleepiness in DFD patients with OSA and chronic obstructive nasal breathing (CONB) after undergoing bimaxillary, chin, and intranasal surgery.

MATERIALS AND METHODS

A retrospective cohort study of patients with a bimaxillary DFD and CONB was implemented. Patients were divided into those with no OSA (group I) and those with OSA (group II). Group II was further subdivided into patients referred with polysomnogram (PSG)-confirmed OSA (group IIa) and those with a diagnosis of OSA only after surgical consultation, airway evaluation, and a positive PSG (group IIb). Group II patients were analyzed at a minimum of 1 year after surgery (range, 1 to 10 years) for daytime sleepiness with the Epworth Sleepiness Scale. Patients with postoperative excessive daytime sleepiness were assessed for risk factors and continued need for OSA treatment. Patients in group II were studied to determine which DFD patterns were most associated with OSA. We compared the prevalence of OSA between our study population and the general population.

RESULTS

Two hundred sixty-two patients met the inclusion criteria. Of these, 23% (60 of 262) had PSG-confirmed OSA (group II). This rate was much higher than that found in the general population. Of the patients, 7% (19 of 262) were known to have OSA at initial surgical consultation (group IIa). An additional 16% (41 of 262) were later confirmed by PSG to have OSA (group IIb). Patients with primary mandibular deficiency and short face DFDs were most likely to have OSA (P < .001 and P = .001, respectively). In group II, 91% (55 of 60) rated their daytime sleepiness as "not sleepy" at a minimum of 1 year after surgery. A significant association was found between group II patients with postoperative excessive daytime sleepiness ("sleepy" or "very sleepy") and a preoperative body mass index category of overweight (P = .026).

CONCLUSIONS

Our study found silent OSA to be frequent in the DFD population. The prevalence of OSA in DFD patients exceeded that estimated in the general population, with retrusive jaw patterns most affected. In DFD patients also presenting with OSA and CONB, we confirmed low levels of daytime sleepiness long-term after simultaneous bimaxillary orthognathic, chin, and intranasal surgery.

Method of osteotomy fixation and need for removal following bimaxillary orthognathic, osseous genioplasty, and intranasal surgery: a retrospective cohort study

The purpose of this study was to determine the incidence and causes of fixation hardware removal after bimaxillary orthognathic, osseous genioplasty, and intranasal surgery. A retrospective study was performed, involving subjects with a bimaxillary developmental dentofacial deformity (DFD) and symptomatic chronic obstructive nasal breathing. At a minimum, subjects underwent Le Fort I osteotomy, bilateral sagittal ramus osteotomies (SROs), septoplasty, inferior turbinate reduction, and osseous genioplasty. The primary outcome variable studied was fixation hardware removal. Demographic, anatomical, and surgical predictor variables were assessed. Two hundred sixty-two subjects met the inclusion criteria. Their mean age at operation was 25 years (range 13-63 years); 134 were female (51.1%). Simultaneous removal of a third molar was performed in 39.9% of SROs. Three of 262 Le Fort I procedures (1.1%) and two of 524 SROs (0.4%) required hardware removal. There were four cases of ramus wound dehiscence, four of ramus surgical site infection (SSI), one of chin SSI, two of maxillary sinusitis, and one of lingual nerve injury; none of these subjects underwent hardware removal. A limited need for fixation hardware removal after orthognathic procedures was confirmed. There was no statistical correlation between hardware removal and patient sex, age, pattern of DFD, simultaneous removal of a third molar, or occurrence of wound dehiscence, SSI, or lingual nerve injury.

Surgical Site Infections Following Bimaxillary Orthognathic, Osseous Genioplasty, and Intranasal Surgery: A Retrospective Cohort Study

PURPOSE

Frequency estimates of surgical site infection (SSI) after orthognathic surgery vary considerably. The purpose of this study was to determine the incidence and site of SSIs and associated risk factors after bimaxillary orthognathic, osseous genioplasty, and intranasal surgery.

MATERIALS AND METHODS

The authors executed a retrospective cohort study of patients with a bimaxillary developmental dentofacial deformity (DFD) and symptomatic chronic obstructive nasal breathing. All patients underwent at a minimum Le Fort I osteotomy, bilateral sagittal ramus osteotomies (SROs), septoplasty, inferior turbinate reduction, and osseous genioplasty. The primary outcome variable studied was the incidence and site of SSI. Predictor variables were type and extent of prophylactic antibiotic used, demographic (age and gender), and anatomic (pattern of DFD, surgical site, and presence of third molar).

RESULTS

Two hundred sixty-two patients met the inclusion criteria. Their average age at surgery was 25 years (range, 13 to 63 yr) and there were 134 female patients (51%). The major presenting patterns of DFD included long face (30%) and maxillary deficiency (25%). Forty percent of patients undergoing an SRO and 47% of those undergoing a Le Fort I osteotomy underwent simultaneous removal of a third molar. Ninety percent of patients received cefazolin or cephalexin antibiotics. Overall, 5 of 1,048 (0.5%) osteotomy sites sustained an infection, including 1 chin and 4 ramus SSIs. There were no delays in bone healing. Fixation hardware removal was not required in any patient who developed an infection. Two of the 25 patients (8%) given clindamycin prophylaxis developed an SSI, whereas 3 of 237 patients (1%) receiving cefazolin did. Three of the 4 patients who developed an SRO SSI underwent simultaneous removal of an erupted or partially erupted mandibular third molar (P < .05).

CONCLUSIONS

In this study, the incidence of SSI was limited to 1% of patients who were given cefazolin or cephalexin extended for 5 days. The removal of an erupted or partially erupted mandibular third molar in conjunction with an SRO was associated with risk of SSI, but the incidence remains low.

Is It Safe and Effective to Lengthen a Chin With Interpositional Allogenic (Iliac) Graft?

PURPOSE

This is a retrospective review of a consecutive series of patients undergoing chin lengthening at the time of orthognathic surgery over a 3-year timeframe.

MATERIALS AND METHODS

The genioplasty procedures studied included lengthening to the extent that an interpositional graft was deemed necessary (n = 19). Allogenic (iliac) corticocancellous bone was used in all cases. Each patient underwent lateral cephalometric radiography within 2 months before and 5 weeks after surgery. From the radiographs, quantitative measurements (millimeters) were made to document the vertical lengthening and horizontal advancement achieved. Chin region wound healing parameters were reviewed to document evidence of infection, sequestra, need for reoperation, and evidence of fibrous union. Inpatient hospital and outpatient office records were reviewed for any evidence of sepsis or viral transmission.

RESULTS

The patients' mean age at operation was 35 years (range, 15 to 58 yr). Analysis of preoperative and 5-week postoperative radiographs documented a mean vertical lengthening of 7 mm (range, 4 to 10 mm). The mean horizontal advancement at the pogonion was confirmed to be 2 mm (range, 1 to 3 mm). None of the study patients sustained chin region infection graft sequestra, fibrous union, or need for reoperation. There were no cases of postoperative sepsis or viral illness to indicate systemic infectious sequelae.

CONCLUSION

The study confirms the safety of allogenic (iliac) corticocancellous grafting to fill interpositional defects associated with a transverse symphyseal lengthening osteotomy.

Treatment for delayed presentation of sagittal synostosis: challenges pertaining to occult intracranial hypertension

OBJECT

Patients with delayed presentation of isolated sagittal synostosis (ISS) pose unique surgical challenges. Intracranial hypertension can be missed in the absence of overt findings. Here, an algorithm is presented for the elucidation of intracranial hypertension and approaches to surgical treatment during calvarial reconstruction.

METHODS

Patients with delayed presentation (age > 15 months) of ISS between 1997 and 2009 were identified. Symptoms, signs, and radiological evidence of intracranial hypertension were noted. Intraoperative management included calvarial reconstruction in conjunction with ventriculostomy for intracranial pressure (ICP) monitoring and CSF drainage in the setting of suspected intracranial hypertension.

RESULTS

Seventeen patients underwent calvarial reconstruction for delayed presentation of ISS. The mean surgical age was 40.5 months (16.2-82.9 months), and the average follow-up was 34.2 months (0.6-92.2 months). Eleven patients with subtle findings of intracranial hypertension underwent ICP monitoring during calvarial reconstruction. The mean opening ICP was 23.5 cm H(2)O (16.5-29.5 cm H(2)O), and the mean closing ICP was 7.0 cm H(2)O (3.5-17.0 cm H(2)O). Nine (81.8%) of 11 monitored patients demonstrated intracranial hypertension (ICP ≥ 20 cm H(2)O); the other 2 had borderline increased ICP. Perioperative morbidity was 5.9%, with 1 patient medically treated for transient, new-onset intracranial hypertension. The postoperative Whitaker category was I in 94.1% of patients, II in 5.9%, and III/IV in 0%. There were no reoperations or deaths.

CONCLUSIONS

In this consecutive series, 11 of 17 patients with delayed presentation of ISS underwent ICP monitoring during calvarial reconstruction as a result of subtle clinical findings of intracranial hypertension. Nine (81.8%) of 11 monitored patients demonstrated intracranial hypertension. Calvarial reshaping along with ICP monitoring and CSF drainage facilitated reconstruction and resulted in good outcomes and the resolution of intracranial hypertension.

Blood replacement practices for complex orthognathic surgery: a single surgeon's experience

PURPOSE

The purpose of this study is to review the blood replacement practices in a consecutive series of a single surgeon's experience whose patients all underwent, at a minimum, simultaneous Le Fort I maxillary osteotomy, bilateral sagittal split osteotomies of the mandible, septoplasty, and inferior turbinate reduction procedures.

PATIENTS AND METHODS

A consecutive series of a single surgeon's patients who met inclusion criteria of (n = 34) during a 5-month time frame were included. Records included office charts, hospital records, and data stored at the Red Cross (hospital) blood bank.

RESULTS

A total of 76% (26/34) of the study patients chose to auto donate [corrected].. Only 2 of the study patients underwent blood transfusion (6%). One of the transfused patients received 1 unit of auto-donated blood, whereas the other transfused patient received a unit of homologous packed red blood cells. Based on the total units of blood predonated, 97% (28/29) of stored units were discarded.

CONCLUSION

Only a small percentage (6%) of individuals undergoing complex orthognathic and intranasal surgery received blood replacement. We believe that close collaboration between the surgical and anesthesia teams and the recovery of patients in a safely monitored environment will continue to reduce the need for transfusion in the orthognathic patient.

Complex orthognathic surgery: assessment of patient satisfaction

PURPOSE

The purpose of our survey study was to determine if bimaxillary orthognathic surgery with simultaneous intranasal surgery and other procedures carried out primarily for the correction of a developmental dentofacial deformity can be completed with a high level of patient satisfaction and minimal complications.

PATIENTS AND METHODS

A consecutive series of 42 patients entered in the study from senior surgeon's (J.P.) patients at a single institution who underwent the minimum designated simultaneous procedures (Le Fort I, sagittal osteotomies of the mandible, septoplasty, inferior turbinate reduction) during a 1-year period. Patient satisfaction was assessed through analysis of data gathered from a postsurgical patient satisfaction questionnaire. The questionnaire is used to assess overall postsurgical/orthodontic patient satisfaction and patient assessment of head and neck function. The questionnaire was independently completed by each subject at least 6 months after surgery and only after removal of all orthodontic appliances and planned dental rehabilitation.

RESULTS

The results of our study clarify that bimaxillary orthognathic surgery including simultaneous intranasal (septoplasty and turbinate reduction) and other procedures (genioplasty, liposuction, and removal of third molars) can be carried out with a high level of patient satisfaction (89% of our study patients). Nevertheless, 2 of 42 patients (5%) in our study group were dissatisfied despite the absence of surgical or orthodontic complications and the clinicians' feelings that the results achieved were an improvement.

CONCLUSIONS

The results of our study clarify that complex bimaxillary orthognathic surgery including simultaneous intranasal and other procedures can be carried out with a high level of patient satisfaction.

Simultaneous intranasal procedures to improve chronic obstructive nasal breathing in patients undergoing maxillary (le fort I) osteotomy

PURPOSE

The aim of this study was to evaluate the safety and efficacy of septoplasty and inferior turbinate reduction, carried out through a Le Fort I osteotomy as part of the correction of a dentofacial deformity, designed to improve nasal breathing in patients who reported pre-existing nasal airway obstruction and had documented septal deviation and inferior turbinate hypertrophy.

PATIENTS AND METHODS

A validated outcomes instrument, the Nasal Obstruction Symptom Evaluation (NOSE) questionnaire, was used to objectively assess the extent of clinical nasal obstruction both before and after septoplasty and inferior turbinate reduction performed at the time of Le Fort I down-fracture. The study group comprised 43 consecutive patients scheduled for orthognathic surgery (including Le Fort I osteotomy) over a 12-month period who complained of chronic nasal obstruction and were found (by an independent otolaryngology evaluation) to have septal deviation and inferior turbinate hypertrophy unresponsive to medical therapy, who met the inclusion criteria, and who agreed to the procedures (septoplasty and turbinate reduction). The data collected included age, gender, health and social history, type of dentofacial deformity, concomitant surgical procedures, and any associated postoperative complications.

RESULTS

For the 43 study patients, significant improvement in nasal breathing was documented (by NOSE scores) at 3 months (P < .001) after the procedures (Le Fort I osteotomy, septoplasty, and inferior turbinate reduction). Comparison of the 3-month and 6-month NOSE scores showed maintenance of improved nasal breathing with further improvement that did not demonstrate statistical significance.

CONCLUSIONS

The findings of this study indicate that simultaneous management of the maxillary jaw deformity (Le Fort I osteotomy) and intranasal pathology (septoplasty and reduction of inferior turbinates) were effective for the symptomatic relief of nasal airway obstruction. The complication rate for the intranasal procedures completed simultaneously with a Le Fort I osteotomy was minimal and not dissimilar to the rates reported for each procedure performed as an isolated event.

Strength Analysis of Titanium and Resorbable Internal Fixation in a Mandibulotomy Model

PURPOSE

Mandibulotomy is used to access various tumors of the tongue base, posterior oral cavity, pharynx, parapharyngeal space, and cranial base. Internal fixation using titanium plates and screws is the most common method of stabilization. These have the potential for interference with radiotherapy delivery. This in vitro study compares the strength of titanium and resorbable internal fixation in a mandibulotomy model by analyzing the force required for plate and screw breakage.

MATERIALS AND METHODS

Red oak wood board was used to simulate the mandible. Titanium and resorbable plates and screws in various configurations were used to stabilize pieces of the wood. They were arranged in 6 different groups. The specimens were individually tested with a vertical load, while the test machine recorded the force-versus-displacement behavior automatically.

RESULTS

Plate type and configuration affected the applied load required to induce displacement of the simulated mandibulotomy. Heating and cooling the resorbable plates prior to strength testing also affected the load-versus-displacement curve.

CONCLUSIONS

Overall, the titanium system we studied exhibited greater resistance to deformation from a vertical load than did the resorbable plate groups.

Cleft-orthognathic surgery

For the cleft patient presenting in adolescence with a jaw discrepancy and malocclusion, misinformation and limited available surgical and dental expertise often prevents a favorable facial reconstruction and dental rehabilitation. A major advantage of the modified Le Fort I osteotomy is its ability to simultaneously close cleft dental gap(s), resolve oronasal fistulas, manage skeletal defects, stabilize dentoalveolar segments, and correct jaw deformities. When a thoughtful staging of reconstruction is undertaken, individuals born with cleft lip and palate can reach adolescence after undergoing only a limited number of operations and interventions, without negative attention being drawn to their original malformation.

The role of maxillofacial osteotomies in the treatment of obstructive sleep apnea

Selective osteotomies of the maxillofacial skeleton can improve airway dynamics and allow for more efficient airflow in patients with obstructive sleep apnea (OSA). The success of these procedures for patients with OSA is well documented. This article reviews the indications and treatment considerations for maxillofacial osteotomies to improve airway dynamics in patients with OSA.