The free fibula osteocutaneous flap has become the criterion standard for reconstruction of complex mandibular defects. The authors present their institutional experience with optimization of flap ...contouring and inset using virtual planning and prefabricated cutting jigs.
All free fibula-based mandible reconstructions performed at the authors' institution using virtual planning technology between 2009 and 2012 were retrospectively analyzed. The authors evaluated a variety of patient and procedural variables and outcomes. A series of cases performed before virtual planning was reviewed for comparison purposes.
Fifty-four reconstructions were performed in 52 patients. Patients were divided evenly between a private university-affiliated medical center and a large county hospital. The most common indications were malignancy (43 percent), ameloblastoma (26 percent), and osteonecrosis/osteomyelitis (23 percent). Thirty percent of patients had irradiation of the recipient site and 38 percent had previous surgery. Sixty-three percent of patients received dental implants, with 47 percent achieving functional dentition. Twenty-five percent of patients had immediate dental implant placement, and 9 percent had immediate dental restoration. Postoperative imaging demonstrated excellent precision and accuracy of flap positioning. Comparison with cases performed before virtual planning demonstrated increased complexity of flap design along with reduced operative time in the virtually planned group.
Preoperative virtual planning along with use of prefabricated cutting jigs allows for precise contouring and positioning of microvascular fibula free flaps in mandibular reconstruction. Using this technique, the authors have achieved unprecedented rates of dental rehabilitation along with reduced operative times. The authors believe that virtual planning technologies are an emerging criterion standard in mandible reconstruction.
Therapeutic, IV.
Augmentation gluteoplasty has been performed more frequently in the past decade, with over 21,000 procedures performed in the past year alone. The most popular methods for buttock augmentation ...involve silicone prostheses and autologous fat grafting. A comparison of complications of these two techniques does not exist in our literature.
The PubMed, MEDLINE, and Cochrane databases were searched through April of 2015 for studies that achieved buttock augmentation through the use of silicone implant placement or autologous lipoinjection. Complication outcomes of interest included wound dehiscence, infection, seroma, hematoma, asymmetry, and capsular contracture.
Forty-four articles met inclusion criteria. The most commonly reported complications in 2375 patients receiving silicone implants were wound dehiscence (9.6 percent), seroma (4.6 percent), infection (1.9 percent), and transient sciatic paresthesias (1.0 percent), with an overall complication rate of 21.6 percent (n = 512). The most commonly reported complications in 3567 patients receiving autologous fat injection were seroma (3.5 percent), undercorrection (2.2 percent), infection (2.0 percent), and pain or sciatalgia (1.7 percent), with an overall complication rate of 9.9 percent (n = 353). Patient satisfaction after surgery was assessed differently among studies and could not be compared quantitatively.
Although gluteal augmentation was once reported to have complication rates as high as 38.1 percent, a systematic review of the two most popular techniques demonstrated substantially lower overall complication rates. The overall complication rate with autologous fat grafting (9.9 percent) is lower than that with silicone buttock implants (21.6 percent). A standardized method of measuring patient satisfaction is necessary to fully understand outcomes of these increasingly popular procedures.
Inferior turbinate hypertrophy is often encountered by plastic surgeons who perform rhinoplasty. Many treatment options are available to treat the inferior turbinate. The objective of this study was ...to systematically review outcomes of available techniques and provide guidance to surgical turbinate management.
A MEDLINE search was performed for means of treating inferior turbinate hypertrophy. Studies selected focused on treatment of the inferior turbinate in isolation and excluding patients with refractory allergic rhinitis, vasomotor rhinitis, or hypertrophic rhinitis.
Fifty-eight articles were identified, collectively including the following surgical treatments of inferior turbinate hypertrophy: total turbinectomy, partial turbinectomy, submucosal resection, laser surgery, cryotherapy, electrocautery, radiofrequency ablation, and turbinate outfracture. Outcomes and complications were collected from all studies. Procedures such as turbinectomy (partial/total) and submucosal resection showed crusting and epistaxis at comparatively higher rates, whereas more conservative treatments such as cryotherapy and submucous diathermy failed to provide long-term results. Submucosal resection and radiofrequency ablation were shown to decrease nasal resistance and preserve mucosal function. No literature exists to support the belief that turbinate outfracture alone is an effective treatment for turbinate hypertrophy.
Treatment of inferior turbinate hypertrophy is best accomplished with modalities that provide long-lasting results, preservation of turbinate function, and low complication rates. Submucosal resection and radiofrequency ablation appear to best fulfill these criteria. Turbinate outfracture should only be considered in combination with tissue-reduction procedures.
Defining fat necrosis in plastic surgery Rao, Ajit; Saadeh, Pierre B
Plastic and reconstructive surgery (1963),
2014-December, Letnik:
134, Številka:
6
Journal Article
Recenzirano
Fat necrosis is a well-known complication of free tissue transfer and fat grafting that is becoming increasingly reported in the literature. However, there is no clear consensus on how fat necrosis ...is defined and classified in the plastic surgery literature.
A systematic review of the literature was performed using the PubMed database of the National Library of Medicine and National Institutes of Health and Google Scholar from January 1, 2003, to November 1, 2013. The keywords used in the search included "fat necrosis" and "plastic surgery."
Sixty-nine articles were chosen that met the authors' criteria and were included in this review. There was wide variation on the size requirements and postoperative timing when defining fat necrosis. In addition, the workup sought after clinical examination to confirm a diagnosis of fat necrosis varied, including radiographic studies, histopathologic examination, or a series of studies.
Based on the articles reviewed in this article, a more uniform definition needs to exist that is clearly defined in all articles that report on fat necrosis. The authors suggest defining fat necrosis as a palpable, discrete, and persistent subcutaneous firmness found postoperatively that measures at least 1 cm during physical examination. Fat necrosis can be identified and confirmed by imaging and histopathology or through intraoperative findings. The authors provide a classification system for fat necrosis that can be used by clinicians to describe fat necrosis into varying grades of severity to ultimately help guide clinical decision-making.
Bony defects in the craniomaxillofacial skeleton remain a major and challenging health concern. Surgeons have been trying for centuries to restore functionality and aesthetic appearance using ...autografts, allografts, and even xenografts without entirely satisfactory results. As a result, physicians, scientists, and engineers have been trying for the past few decades to develop new techniques to improve bone growth and bone healing. In this review, the authors summarize the advantages and limitations of current animal models; describe current materials used as scaffolds, cell-based, and protein-based therapies; and lastly highlight areas for future investigation. The purpose of this review is to highlight the major scaffold-, cell-, and protein-based preclinical tools that are currently being developed to repair cranial defects.
Gustilo type IIIC open tibia fractures are characterized by an ischemic limb requiring immediate arterial repair. In this patient population, the decision between primary amputation and limb salvage ...can be challenging. This study aims to evaluate the reconstructive outcomes of patients with Gustilo type IIIC injuries.
A single-center retrospective review of 806 lower extremity free flaps from 1976 to 2016 was performed. Flap loss and salvage rates for patients with Gustilo type IIIC injuries were determined. To determine the utility of performing salvage in this group, outcomes of the IIIC reconstructions were compared to those of similar patients with Gustilo I type IIB injuries with only a single patent vessel.
A total of 32 patients with Gustilo type IIIC injuries underwent reconstruction after traumatic injury. Ten patients (31.3 percent) experienced a perioperative complication, including seven unplanned returns to the operating room (21.9 percent), three partial flap losses (9.4 percent), and five complete flap losses (15.6 percent). When type IIIC injuries were compared with single-vessel Gustilo type IIIB injuries, no statistically significant differences were noted with respect to major perioperative complications (p = 0.527), unplanned return to the operating room (p = 0.06), partial flap loss (p = 0.209), complete flap loss (p = 0.596), or salvage rate (p = 0.368). Although this result was not statistically significant, Gustilo type IIIC injuries trended toward lower take-back rates and higher salvage rates compared with single-vessel Gustilo type IIIB injuries.
Patients with Gustilo type IIIC open tibia fractures should be considered candidates for limb salvage, as flap loss and reconstruction of these injuries are comparable to those of the routinely reconstructed single-vessel runoff type IIIB injuries.
Therapeutic, IV.
Analysis of Internet search patterns is rapidly transforming the study of human behavior. Google's data, accessed through Google Trends, have proven extremely insightful in several fields of medical ...research. Despite its adoption in other fields of medicine, Google Trends has not yet been explored in the field of plastic surgery.
The number of cosmetic surgery procedures from 2005 through 2016 was obtained from the American Society of Plastic Surgeons annual reports. Using Google Trends, the most commonly used keywords describing each procedure were determined, and data regarding search interest over time, interest across geographic area, and Related Queries were obtained. The number of procedures performed annually was compared to relative search volume from the corresponding year and the year prior to determine correlation.
Of the 22 procedures evaluated, the annual number of eight procedures correlated with Internet search volume in the corresponding year, and six procedures correlated with the Internet searches performed in the year prior. Florida and New York were the states with the most searches for these procedures. Related Queries suggested that several factors, such as operative techniques, notable individuals undergoing procedures, and cost, variably drove correlations for different procedures.
Google Trends is a powerful tool that can be used to better understand patient interest in, questions about, and decisions regarding cosmetic surgery procedures. These findings warrant action by aesthetic surgeons to increase interest, address misinformation, and help patients fill the gaps of information missed by Internet searches.
Considering that muscle has higher metabolic demand than fasciocutaneous tissue and can be more difficult to monitor clinically, the authors compared take-back salvage rates between fasciocutaneous ...and muscle free flaps for lower extremity trauma reconstruction.
The authors conducted a retrospective review of 806 free flaps (1979 to 2016); 481 soft-tissue flaps performed for below-knee trauma met inclusion criteria. Primary outcome measures were perioperative complications, specifically, take-backs and flap salvage rates. Univariate and multivariate regression analysis was performed where appropriate.
Take-backs occurred in 71 flaps (muscle, n = 44; fasciocutaneous, n = 27) at an average of 3.7 ± 5.4 days postoperatively. Indications were venous (48 percent), arterial (31 percent), unknown (10 percent), and hematoma (10 percent). Overall outcomes were complete salvage (37 percent), partial failure (25 percent), and total failure (38 percent). Take-backs occurring within 48 hours postoperatively correlated with higher salvage rates (p = 0.022). Fasciocutaneous flaps demonstrated increased take-back rates compared with muscle flaps (p = 0.005) that more frequently occurred within 48 hours postoperatively (relative risk, 13.2; p = 0.012). Fasciocutaneous flaps were successfully salvaged more often than muscle-based flaps (p < 0.001). Multivariable regression strongly demonstrated higher risk of take-back failure for muscle flaps (relative risk, 9.42; p = 0.001), despite higher take-back rates among fasciocutaneous flaps (relative risk, 2.28; p = 0.004).
Compared with muscle-based flaps, fasciocutaneous flaps demonstrated earlier and more frequent take-backs for suspected vascular compromise, with higher successful take-back salvage rates. Furthermore, muscle flaps with skin paddles also demonstrated better salvage outcomes than those without. These findings may reflect a combination of lower metabolic demand and easier visual recognition of vascular compromise in fasciocutaneous tissue.
Therapeutic, III.
Open tibia fractures are commonly stratified by the Gustilo classification, an orthopedic grading system that does not incorporate the presence of arterial injury when limb perfusion is intact. In ...the authors' experience, however, the presence of arterial injury appears to negatively impact microsurgical outcomes.
In a retrospective review of 806 lower extremity reconstructions between 1979 and 2016, 361 soft-tissue flaps performed for Gustilo type IIIB/C coverage met inclusion criteria. Patient demographics, flap characteristics, and outcomes were analyzed.
Most patients suffered type IIIB n = 332 (91.9 percent) injuries; 29 (8.0 percent) had type IIIC injuries. Preoperative angiography n = 243 (67.3 percent) demonstrated arterial injury in 126 (51.8 percent); 27 arterial injuries were identified intraoperatively; and the overall incidence was 153 of 361 (42.4 percent). Complications occurred in 143 flaps (39.6 percent) and included 37 partial losses (10.2 percent) and 31 total losses (8.6 percent). Injured recipient arteries n = 62 (17.2 percent) had more complications (p = 0.004); specifically, increased take-backs (p = 0.009). Decreasing vessel runoff increased the risk of complications (p = 0.025), take-backs (p = 0.007), and total flap failures (p = 0.024) accordingly. Specifically, among grade IIIB injuries, controlling for age, sex, time since injury, and vein number, single-vessel runoff was associated with higher rates of complications (relative risk, 3.07; p = 0.012), take-backs (relative risk, 3.43; p = 0.013), and total flap failures (relative risk, 4.80; p = 0.010) compared with three-vessel runoff.
Arterial injury was common among Gustilo type IIIB patients and correlated with increased reconstructive complications. Nonischemic arterial injury appears to negatively impact reconstructive outcomes and should be accounted for when considering free tissue transfer for lower extremity salvage. The authors propose a 3-2-1 modification of the Gustilo type IIIB classification to incorporate degree of arterial injury, as it appears to add prognostic value and certainly influences the reconstructive plan.
Risk, IV.
Marko Godina, in his landmark paper in 1986, established the principle of early flap coverage for reconstruction of traumatic lower extremity injuries. The aim of this study was to determine how ...timing influences outcomes in lower extremity traumatic free flap reconstruction based on Godina's original findings.
A retrospective review identified 358 soft-tissue free flaps from 1979 to 2016 for below knee trauma performed within 1 year of injury. Patients were stratified based on timing of coverage: 3 days or less (early), 4 to 90 days (delayed), and more than 90 days (late). The delayed group was further divided into two groups: 4 to 9 days and 10 to 90 days. Flap outcomes were examined based on timing of reconstruction.
Flaps performed within 3 days after injury compared with between 4 to 90 days had decreased risk of major complications (OR, 0.40, p = 0.04). A receiver operating curve demonstrated day 10 to be the optimal day for predicting flap success. Flaps performed less than or equal to 3 days versus 4 to 9 days had no differences in any flap outcomes. In contrast, flaps performed within 4 to 9 days of injury compared to within 10 to 90 days were associated with significantly lower total flap failure rates (relative risk, 0.29, p = 0.025) and major complications (relative risk, 0.37, p = 0.002).
Early free flap reconstruction performed within 3 days of injury had superior outcomes compared with the delayed (4 to 90 day) group, consistent with Godina's original findings. However, as an update to his paradigm, this ideal early period of reconstruction can be safely extended to within 10 days of injury without an adverse effect on outcomes.
Therapeutic, III.
