Identifying Regional Viscoelastic Properties of the Superficial Muscular Aponeurotic System.

BACKGROUND: Suspension of the superficial muscular aponeurotic system (SMAS) is generally believed to be necessary in facelift surgery. Although many techniques have been suggested, all rely on the viscoelastic properties of the SMAS. OBJECTIVES: The aim of this study was to determine the viscoelastic properties of bursting strength, stress relaxation, and creep in the lateral, mid-cheek, and medial regions of the SMAS. METHODS: The viscoelastic properties of the SMAS were determined in 12 cadaveric hemifaces. Lateral SMAS was classified as the SMAS overlying the parotid gland; mid-cheek SMAS as anterior to the parotid and overlying the masseter muscle; and medial SMAS as including tissue extending medial from the lateral canthus and ending at the nasolabial fold. RESULTS: The 3 SMAS regions showed significantly different bursting strengths: 38.9 N for the lateral SMAS, 26.7 N for the mid-cheek SMAS, and 11.9 N for the medial SMAS (P < 0.0001). Stress relaxation was similar in all vertical regions with measurements of 54% in the lateral, 48% in the mid-cheek, and 59% in the medial SMAS. Creep was found to be similar in the lateral and mid-cheek SMAS with values of 18% and 19%, respectively. The medial SMAS was noted to have a higher creep at 22%. CONCLUSIONS: The lateral SMAS has a stronger bursting strength than the mid-cheek and medial SMAS. Creep appears to be lower in the lateral and mid-cheek SMAS. Stress relaxation appears to be similar in all 3 vertical regions.

An alternative outpatient care model: postoperative guest suite-based care.

BACKGROUND: Patients recovering from outpatient surgery are responsible for managing their pain, managing ambulation, and even implementing thromboembolism prophylaxis after discharge. Because of the importance of postoperative care to prevent complications, a model of care that helps a patient transition to independent self-care could provide optimal results. OBJECTIVES: The authors investigated the safety and morbidity rate for patients who underwent body contouring procedures and overnight care at an attached, nurse-staffed guest suite facility. METHODS: A retrospective review was conducted of 246 patients who underwent major body contouring and who stayed at least 1 night in the guest suite facility. Major complications included a return to the operating room within 48 hours, major wound infection, and unplanned hospitalization within 48 hours. Minor complications included any postsurgical effect necessitating unplanned physician intervention within the first 30 days. Univariate analyses correlating patient characteristics and complication rates were conducted, as well as comparison of complication rates among same procedures reported in the literature. RESULTS: The complication rate (major and minor complications) was 25.20%. Surgical site infection occurred in 8.13% of patients. The most common wound complication was erythema around the incision site (12.20%). Death, deep vein thrombosis, or pulmonary embolism did not occur. Comparison with relevant results reported in the literature indicated a significant reduction in the occurrence of postoperative venous thromboembolism. CONCLUSIONS: Patient education after surgery is essential to healing and adequate care. The guest suite model provides improved care and education for the patient and family postsurgery by addressing some of the known risk factors of plastic surgery. LEVEL OF EVIDENCE: 4.

The extended transverse musculocutaneous gracilis flap: vascular anatomy and clinical implications.

BACKGROUND: The transverse musculocutaneous gracilis (TMG) flap has been used in autologous breast reconstruction, but disadvantages include a small flap volume; therefore, it is only used in small-to-moderate breast reconstructions. We investigated the vascular territory of this flap and the possibility of extending its dimensions. METHODS: Ten circumferential thigh adipocutaneous flaps attached to the gracilis muscle were harvested from adult cadavers. The following parameters were recorded: diameter and length of pedicles, distance of pedicles from pubis, and number and locations of cutaneous perforators. The major pedicles were injected with contrast and subjected to 3-dimensional computed tomography scanning. Images were viewed using both General Electrics and TeraRecon systems, and the vascular territories were measured. Flaps were then incised to include only tissue that was perfused with contrast, and measured for weight and volume. RESULTS: The major pedicle had a mean length of 6.7 cm, diameter of 2.2 mm, and distance from pubis of 8.6 cm. There was a mean of 4.3 cutaneous perforators associated with this flap. Three-dimensional images from contrast injection of the major pedicle showed a cutaneous vascular territory that extended more posteriorly than anteriorly, and had a vertical component. Tissue perfused with contrast had a mean weight of 573 g and volume of 617 mL. Two clinical cases were included to show applications of the extended TMG flap. CONCLUSION: The dimensions of a TMG flap can be increased horizontally (superoposterior thigh) as well as vertically. The vertical portion can be harvested either by undermining the skin inferior to the lower transverse skin incision or by raising a trilobed skin paddle to harvest even more tissue from the medial thigh.

Management of hypertension in the facelift patient: results of a national consensus survey.

INTRODUCTION: In the facelift patient, uncontrolled perioperative hypertension is a difficult, acute condition that can lead to significant complications. Although the treatment of hypertension in the ambulatory medical setting has been standardized, its management in the cosmetic surgery setting has been ambiguous. OBJECTIVES: The authors evaluate the results of a survey to assess current national trends in perioperative facelift hypertension management. METHODS: A 13-question survey regarding perioperative hypertension management was sent by postal mail to 1776 members of the American Society for Aesthetic Plastic Surgery (ASAPS). Respondents were queried about their geographic location, caseload volume, facelift method, and hematoma rate. RESULTS: A 35.4% response rate was attained (629 respondents). Superficial musculoaponeurotic system (SMAS) plication performed under general anesthesia as an outpatient procedure was the most common facelift technique. Perioperative blood pressure management was consistent among all respondents. Beta-blockers were commonly utilized throughout the preoperative period. Administration of alpha agonists was reported more frequently by surgeons with higher-volume caseloads and more years in practice. Reported hematoma rates did not vary with medication. Medical treatment at an intraoperative systolic blood pressure (SBP) threshold below 100 (p < .04) and a postoperative SBP of greater than 139 (p < .05) significantly increased reported hematoma rates. CONCLUSIONS: The data generated from the survey suggest that the timing of treating hypertension deserves more attention than the actual medication administered. Proper perioperative care of the facelift patient is paramount in the reduction of hematoma rates. Preexisting hypertension correlates with a higher hematoma rate, though this study also suggests that normotensive anesthesia, as well as strict postoperative blood pressure control did contribute to a reduction in hematoma rate.

Late free-flap salvage with catheter-directed thrombolysis.

INTRODUCTION: Despite high success rates with free-tissue transfer, flap loss continues to be a devastating event. Flap salvage is often successful if vascular complications are recognized and treated early. However, delayed presentation of flap compromise is an ominous predictor of flap loss. Late free-flap salvage has been described with poor long-term results. Catheter-directed thrombolysis (CDT) has only been described in context with free-tissue transfer in a case of distal bypass salvage. OBJECTIVES: The authors examined the efficacy of highly selective CDT in late salvage of free-flaps with vascular compromise. METHODS: Two patients underwent highly selective CDT after delayed presentation (>5 days) of flap compromise. Patient 1 is a 59-year-old woman who underwent delayed breast reconstruction with a free TRAM flap and presented with arterial thrombosis 12 days postoperatively. Patient 2 is a 53-year-old man who underwent fibular osteocutaneous free-flap reconstruction of a floor of mouth defect who developed venous thrombosis 6 days postoperatively. Patient 2 underwent two attempted operative anastamotic revisions with thrombectomies and local thrombolysis prior to CDT. RESULTS: The average time of presentation was 9 days, with the average time to CDT being 9.5 days. Patient 1 had an arterial thrombosis, whereas Patient 2 had a venous thrombosis. Both patients underwent successful thrombolysis after super-selective angiograms. Continuous infusions of thrombolytic agents were used in both patients for approximately 24 h. Average length of stay postCDT was 7 days with no perioperative complications. Long-term follow-up demonstrated complete flap salvage with no soft tissue loss. CONCLUSION: Despite extremely delayed presentation, aggressive CDT was successful in both breast, and head and neck reconstructions with excellent long-term flap results. CDT appears to be a useful modality in managing difficult cases of free-flap salvage.

Patient safety in plastic surgery.

LEARNING OBJECTIVES: After reading this article, the participant should be able to: 1. Recognize risk factors for venous thromboembolism and identify patients who would benefit from prophylactic anticoagulation; 2. Describe the effects of hypothermia in the perioperative period. 3. Understand the importance of blood pressure control in the plastic surgery patient. SUMMARY: This article provides a summary of important factors that contribute to improved patient safety in plastic surgery. The identification of patients and procedures that have an increased risk of complications enables the physician to carry out prophylactic measures to reduce the rate of these complications. Venous thromboembolism, hypothermia, bleeding diathesis, and perioperative hypertension are identifiable risks of plastic surgery, which can lead to significant morbidity and mortality. An evidence-based system and individual practice measures can help to decrease these risks. Thorough preoperative patient evaluation, detailed informed consent, and perioperative care delivered in a safe environment can contribute to improved safety in plastic surgery.

Endoscopic management of the difficult lower eyelid: a review of 300 cases.

BACKGROUND: The senior author's (H.S.B.) endoscopic brow and midface lift technique has a series of periorbital suture points. This study evaluated the efficacy of endoscopic treatment of the difficult lower eyelid and identifies the preoperative predictive patterns for additional suture placement and ancillary procedures within this population. METHODS: Patients who underwent endoscopic brow and midface lift performed by the senior author were stratified into categories of preoperative lower eyelid morphologies, including lower eyelid retraction, negative canthal tilt, negative vector orbit, exorbitism, and a deep tear trough. Intraoperative treatment and postoperative course were recorded and postoperative photographs were evaluated objectively. The data were analyzed to determine preoperative predictive patterns of endoscopic lower eyelid treatment. RESULTS: Three hundred patients who underwent an endoscopic brow and midface lift between 1999 and 2008 were included in the study, with an average follow-up of 1 year. Most patients were treated with endoscopic orbicularis oculi repositioning combined with midface elevation. Additional suture points were used in 12 percent, with preexisting scleral show being the most common indication for additional endoscopic suture placement. There were no cases of postoperative lower eyelid retraction. Skin resurfacing and volumetric filling were the most common revision procedures. CONCLUSIONS: The difficult lower eyelid can be treated effectively with endoscopic orbicularis repositioning and midface elevation. This technique preserves the innervation and continuity of the orbicularis oculi muscle, decreasing postoperative complications. Additional suture application is needed in only a minority of patients, and ancillary lower eyelid procedures can be performed safely in the same operative setting.

The role of biologic mesh in abdominal wall reconstruction: a systematic review of the current literature.

BACKGROUND: Biologic mesh in the form of allograft or xenograft products have been used in complicated abdominal hernia repair, but few comparative studies exist. METHODS: A systematic review of original incisional hernia studies was conducted to include 2 primary end points: hernia recurrence and surgical site occurrence. Analysis of variance and a Satterthwaite t test compared the devices. RESULTS: Twenty-nine studies were included in this analysis, which included 1,257 patients. The total number of studies and the total subjects for each device include the following: Permacol (Tissue Science Laboratories, Hampshire, UK) (4/64), Surgisis (Cook Medical, Bloomington, IN) (3/87), and Alloderm (LifeCell, Corp, Branchburg, NJ) (23/1,106). Device-specific recurrence rates and surgical site occurrence rates, respectively, were as follows: Alloderm (20.8%, 31.4%), Permacol (10.9%, 25%), and Surgisis (8.0%, 40.2%). A Satterthwaite t test comparison revealed significantly higher numbers of hernia recurrence (P = .006) and surgical site occurrence (P = .04) when comparing Alloderm with Permacol. CONCLUSIONS: Biologic mesh does play a beneficial role in abdominal wall reconstruction although allograft acellular dermal matrix does have a higher recurrence rate as compared with xenograft products, which limits its current role in hernia repair.

Modifications to extend the transverse upper gracilis flap in breast reconstruction: clinical series and results.

BACKGROUND: The transverse myocutaneous gracilis flap has traditionally been used to reconstruct smaller breasts. The authors have been performing autologous breast reconstruction utilizing the flap with two types of modifications to increase flap volume: an extended and a vertical extended flap. In this article, they discuss the different operative techniques and present a clinical series of both flap types. METHODS: A retrospective review of all patients undergoing either flap modification under the senior author (M.S.-C.) was performed. Data collated included pedicle artery and vein diameters, flap weight, and patient complications. RESULTS: Twenty-four transverse myocutaneous gracilis flaps were performed: 12 extended (seven patients) and 12 vertical flaps (six patients). The vertical group trended to have greater flap weights than the extended group. Mean flap weight was 385.75 g (range, 181 to 750 g) for the extended group and 469.75 g (range, 380 to 605 g) for the vertical group (p = 0.06). Mean arterial diameter of the medial circumflex artery was 1.9 mm (range, 1.5 to 2.0 mm), mean venous diameter was 2.4 mm (range, 2.0 to 3.5 mm), and mean pedicle length was 6.8 cm (range, 6.0 to 7.0 cm). All donor sites were closed primarily. Complications included seroma (n = 1), wound dehiscence (n = 2), and partial flap loss (n = 2). CONCLUSIONS: Modifications of the transverse myocutaneous gracilis flap increase flap volume and can be useful in patients who do not wish to have abdomen, buttock, or back scars. Donor-site scars can be concealed, and patients have the added benefit of a thigh lift. Complications are comparable to those found with other reconstructive options. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.

The short- and ultrashort-pedicle deep inferior epigastric artery perforator flap in breast reconstruction.

BACKGROUND: Breast reconstruction using the deep inferior epigastric perforator (DIEP) flap is becoming more common and can help reduce donor site morbidity. The authors proposed that dissection of the deep inferior epigastric artery (DIEA) and vein (DIEV) to their external iliac source may not be required for safe flap transfer. METHODS: Sixteen whole fresh cadaveric hemiabdomens were used to dissect transverse abdominal-based flaps. Latex injection of the DIEA system was carried out, and the diameters of the DIEA/DIEV vessels were assessed at various points along the course of the pedicle from the origin to the perforator. A clinical study of 26 patients who underwent a short and ultrashort pedicle DIEP flaps was carried out. RESULTS: The average DIEA and DIEV vessel diameters were relatively similar from the external iliac origin to a point just caudal to the bifurcation. At the lateral rectus edge, the average DIEA diameter was 3.2 mm, and the DIEV diameter was 3.1 mm. The average pedicle length obtained with classic DIEP dissection was 16.9 cm, short-pedicle DIEP dissection 10.4 cm, ultrashort technique 8.1 cm, and free TRAM technique 6.5 cm. Venous injection study demonstrated rich venous interconnections between both venae comitantes. In their clinical study, the authors were able to achieve average pedicle lengths of 11.0 cm when transecting cranial to the lateral edge of the rectus, with average diameters of 2.5 mm (artery) and 2.9 mm (vein). CONCLUSION: Transection of the DIEA/DIEV pedicle at the lateral rectus edge or more proximally is safe and can help reduce operative time and donor-site morbidity. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

Gracilis transposition flap for repair of an acquired rectovaginal fistula in a pediatric patient.

Acquired rectovaginal fistulas in the pediatric population are relatively rare but are often difficult to treat. We describe a young girl who acquired a neorectovaginal fistula after a repeat pull-through procedure for Hirschsprung's disease. Durable repair of the fistula was accomplished with a gracilis transposition flap, providing a well-vascularized muscle buttress between the neorectum and vagina. To our knowledge, this is the first report of a gracilis flap in a pediatric patient with an acquired fistula and should be considered for this complication after pull-through for Hirschsprung's as well as for other perineal fistulas such as those acquired after trauma, infection, or in the setting of inflammatory bowel disease.

The viscoelastic properties of the SMAS and its clinical translation: firm support for the high-SMAS rhytidectomy.

BACKGROUND: The superficial musculoaponeurotic system (SMAS) has inherent viscoelastic properties, although the optimal tension levels to minimize tissue relaxation have not been defined. This study evaluated the viscoelastic properties of the SMAS within the biomechanical parameters of the high-SMAS rhytidectomy. METHODS: Patients (n = 30) underwent a high-SMAS face lift performed by the senior author (F.E.B.) with intraoperative tension at the superior (preauricular) and inferior (mastoid) points of SMAS fixation sequentially measured with a tensiometer. Fresh samples of lateral, preparotid SMAS were then harvested and evaluated ex vivo for bursting strength, stress relaxation, and creep. RESULTS: The force applied to the superior, preauricular SMAS intraoperatively (7.21 ± 0.87 N) was significantly lower than that of the inferior mastoid point of fixation (9.59 ± 1.8 N) (p < 0.001). The bursting force of the SMAS was 55.7 N, with the average bursting pressure of 224.97 PSI. The in vivo force applied to the SMAS was found to be only 15 percent of its total bursting strength. The deformational load of the high-SMAS face lift caused only a 14 percent creep in the tissue ex vivo. CONCLUSIONS: The in vivo tension in a high-SMAS face lift is predictable, with the force applied to the mastoid point being significantly greater than that of the superior preauricular point. This intraoperative force is only a fraction of the tissue's inherent bursting strength, contributing to the minimal stress relaxation and creep observed in this study. These biomechanical properties likely contribute to the effective and long-lasting correction of facial aging with the high-SMAS technique. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

Difficulties with subpectoral augmentation mammaplasty and its correction: the role of subglandular site change in revision aesthetic breast surgery.

BACKGROUND: Difficulties that arise with subpectoral breast implant placement include the following: malpositioning of the implant; improper superior contouring; and unnatural movement with chest muscle contraction. Correction of these deformities is easily achieved by removal of the subpectoral implant, resuspension of the pectoralis major muscle to the chest wall, and reaugmentation with a new implant in the subglandular plane. This study defines a correction modality for the adverse results of subpectoral implant placement in augmentation mammaplasty. METHODS: Pectoralis major resuspension was performed in 36 patients undergoing revision aesthetic breast surgery from 1995 to 2006. All patients had previously placed subpectoral breast implants performed elsewhere with unwanted movement, malposition, and/or capsular contracture. All patients underwent explantation of the breast implant, modified capsulectomy, pectoralis major resuspension, and reaugmentation of the breast in the subglandular position. In cases of symmastia, medial capsulodesis and sternal bolster sutures were used. Patients were evaluated for resolution of symptoms, satisfaction, and complications. RESULTS: Malposition (62 percent), capsular contracture (53 percent), and symmastia (10 percent) were the most common indications for revision, but 100 percent of patients were dissatisfied with abnormal breast movement. The average follow-up time was 20 months. The silicone implants were commonly used, with an average volume change decrease of 27 cc. Unwanted implant movement was eliminated completely (100 percent), symmastia was corrected (100 percent), and capsular contraction was significantly decreased in each respective group. Patient satisfaction with this procedure was high, with a low complication rate. CONCLUSIONS: Pectoralis major resuspension can be performed successfully in aesthetic breast surgery. It can be applied safely to correct problems of unwanted implant movement, symmastia implant malposition, and capsular contraction. The use of silicone gel implants in a novel tissue plane may be beneficial in this diverse, reoperative patient population.

Procedural risk for venous thromboembolism in abdominal contouring surgery: a systematic review of the literature.

BACKGROUND: To ensure that patients receive appropriate thromboembolic prophylaxis, other specialties have begun using risk stratification models. Because these models do not include plastic surgery patients, research must be directed toward exploring the risk associated with these operations. A systematic review of the literature was performed to address these issues. METHODS: A thorough search for all articles discussing abdominal contouring surgery was conducted. Data were collected from this institution through a retrospective chart review and included in the analysis. Procedures were divided into four groups, dependent on what was reported, as follows: abdominoplasty alone, abdominoplasty with an intraabdominal procedure, abdominoplasty with another plastic surgical procedure, and circumferential abdominoplasty. Frequencies of venous thromboembolism were recorded. Chi-square analysis was performed to examine for statistical differences. RESULTS: One hundred fourteen articles were reviewed; 30 articles were included in the analysis. Circumferential abdominoplasty was associated with the highest venous thromboembolism rate (3.40 percent). This was statistically higher than the thromboembolic rate of abdominoplasty (0.35 percent) (p < 0.0001) and abdominoplasty with concomitant plastic surgery (0.79 percent) (p < 0.0001). Abdominoplasty combined with an intraabdominal procedure was associated with the second highest rate of thromboembolism (2.17 percent). This rate was higher than abdominoplasty alone (p < 0.001) and abdominoplasty with concomitant plastic surgery (p = 0.02). CONCLUSIONS: Circumferential abdominoplasty and abdominoplasty performed in combination with an intraabdominal procedure were demonstrated to have significantly increased risk for venous thromboembolism. Patients undergoing these procedures should be risk stratified and have perioperative prophylaxis managed accordingly. It is suggested that both of these operations be placed into a higher exposing risk category within the modified Davison-Caprini risk assessment model.

Refinements in abdominoplasty: a critical outcomes analysis over a 20-year period.

BACKGROUND: The use of liposuction combined with abdominoplasty has been controversial. The combination of techniques has been associated with an increased rate of venous thromboembolism and wound-healing complications. Through improvements in venous thromboembolism prophylaxis, refinements in liposuction techniques, and an understanding of anatomy, this cumulative risk has decreased, although the negative stigmata persist. This study describes the evolution of abdominal body contouring through a critical review of a single surgeon's 20-year experience with abdominoplasty. This clinical outcome analysis will highlight the significant contributions that have led to the improvement in the safety and efficacy of this technique. METHODS: A retrospective review of patients undergoing abdominoplasty procedures was performed. Patient demographics and procedural information, including postoperative course and complications, were recorded. Preoperative and postoperative photographs were scored by blinded evaluators for aesthetic result and scar quality. RESULTS: Two hundred fifty patients undergoing abdominoplasty from 1987 to 2007 were included in the study. The use of a "superwet" liposuction technique in combination with abdominoplasty significantly decreased intraoperative blood loss (p < 0.04) and length of hospital stay (p < 0.05). Liposuction volume and region had no significant effect on abdominoplasty outcome, although refinements in operative technique, including abdominal and flank ultrasound-assisted liposuction, high superior tension, and limited abdominal undermining, did improve the postoperative aesthetic score. Venous thromboembolic events significantly decreased with aggressive venous thromboembolism prophylaxis (p < 0.001). CONCLUSIONS: The technical evolution of a single surgeon's 20-year experience demonstrates that liposuction can be safely and effectively combined with abdominoplasty. Preoperative trunk analysis, intraoperative surgical refinements including superwet technique and ultrasound-assisted liposuction, and perioperative venous thromboembolism prophylaxis significantly improve the outcome of abdominoplasty.

The frontal branch of the facial nerve across the zygomatic arch: anatomical relevance of the high-SMAS technique.

BACKGROUND: The frontal branch has a defined course along the Pitanguy line from tragus to lateral brow, although its depth along this line is controversial. The high-superficial musculoaponeurotic system (SMAS) face-lift technique divides the SMAS above the arch, which conflicts with previous descriptions of the frontal nerve depth. This anatomical study defines the depth and fascial boundaries of the frontal branch of the facial nerve over the zygomatic arch. METHODS: Eight fresh cadaver heads were included in the study, with bilateral facial nerves studied (n = 16). The proximal frontal branches were isolated and then sectioned in full-thickness tissue blocks over a 5-cm distance over the zygomatic arch. The tissue blocks were evaluated histologically for the depth and fascial planes surrounding the frontal nerve. A dissection video accompanies this article. RESULTS: The frontal branch of the facial nerve was identified in each tissue section and its fascial boundaries were easily identified using epidermis and periosteum as reference points. The frontal branch coursed under a separate fascial plane, the parotid-temporal fascia, which was deep to the SMAS as it coursed to the zygomatic arch and remained within this deep fascia over the arch. The frontal branch was intact and protected by the parotid-temporal fascia after a high-SMAS face lift. CONCLUSIONS: The frontal branch of the facial nerve is protected by a deep layer of fascia, termed the parotid-temporal fascia, which is separate from the SMAS as it travels over the zygomatic arch. Division of the SMAS above the arch in a high-SMAS face lift is safe using the technique described in this study.

The single dominant medial row perforator DIEP flap in breast reconstruction: three-dimensional perforasome and clinical results.

BACKGROUND: Successful outcomes with the deep inferior epigastric artery perforator (DIEP) flap are heavily dependent on identifying the largest perforators. The purpose of this study was to describe the vascular anatomy (location, size, zones of perfusion, and variations) of the single most dominant deep inferior epigastric artery perforator and to report a clinical series based on this flap. METHODS: Eleven abdominal flaps were harvested from fresh adult cadavers, and measurements were combined with clinical measurements from 16 patients. Details such as perforator size, location, type, and zones of perfusion were documented for all flaps and clinical outcomes for all patients. RESULTS: A total of 36 flaps were dissected with an average perforator location within a 3-cm radius of the umbilicus and an average perforator size greater than 1.8 mm. Computed tomographic scans of the cadaver abdominal flaps demonstrated consistent perfusion in zones I and II and half of zones III and IV. Clinical results showed partial flap necrosis in one patient and fat necrosis of less than 5 percent in three patients, all of which occurred in the distal portion of zone III. The deep inferior epigastric artery medial row perforators near the umbilicus were found to be the largest perforators in the entire deep inferior epigastric artery system and abdomen. CONCLUSIONS: The single dominant medial row perforator has a maximal vascularity in zones I and II, and less in zones III an IV. The authors recommend that half of zone III and all of zone IV be discarded to avoid the risks of partial flap loss and fat necrosis.

Management of the midface during facial rejuvenation.

The endoscopic midface lift procedure has evolved from experience with postreduction soft tissue repair after facial fracture fixation. The procedure elevates and repositions midface soft tissue, which descends with facial aging; as well, it can correct periorbital congenital abnormalities, such as exorbitism and lateral canthal displacement. The procedure has been refined by the senior author to employ a temporal endoscopic approach alleviating the need for a lower eyelid incision. The plane is sub-SMAS (superficial muscular aponeurotic system) within the pre-zygomatic space with release of the zygo-orbicular ligament and the malar retaining ligament. Using an endoscopically placed suture in the malar retaining ligament, the midface and orbicularis oculi are elevated en bloc, with additional selective sutures applied for specific lower eyelid and cheek morphology. Ancillary lower eyelid procedures including skin resurfacing, skin excision, soft tissue augmentation, and a transblepharoplasty septal reset can all be safely applied to the lower eyelid in the same operative setting. All procedures are technically advanced though once executed deliver an exact correction of the midface, which can be combined with both brow and lower face rejuvenation. The procedure offers limited recovery time and few complications as the facial surgeon becomes facile with the technique.

Combination Jessner's solution and trichloroacetic acid chemical peel: technique and outcomes.

BACKGROUND: Trichloroacetic acid is a commonly utilized agent for chemical resurfacing of the face. Jessner's solution in combination with trichloroacetic acid has been previously described for the treatment of facial rhytids in the dermatology literature. The purpose of this study was to describe the application technique and examine the clinical results of Jessner's solution in combination with trichloroacetic acid in a diverse plastic surgery patient population. METHOD: A retrospective chart evaluation of 105 patients undergoing combination Jessner's and 35% trichloroacetic acid facial peel procedures by the senior author was performed. Patient demographics, anatomic location of peel, concomitant surgical procedures, and postoperative complications were noted. Technique and endpoints are described. RESULTS: Between January of 2000 and April of 2007, 115 chemical peels were performed by the senior author. All patients were female, ranging in age from 32 to 83 years (mean, 54 years). Of the 115 chemical peels performed, 104 were done with concomitant procedures. Eleven peels were performed alone. The most significant complications related to the combination peel were fungal infections (7.8 percent overall rate). In addition, the senior author performed 27 face/neck lifts with superficial musculoaponeurotic system (SMAS)-ectomy or SMAS plication along with full face combination peel, with minimal postoperative complications and no evidence of hypertrophic scarring. CONCLUSIONS: The combination of Jessner's solution and 35% trichloroacetic acid is an effective, safe resurfacing tool that can treat superficial to moderate rhytids. Despite the apparent simplicity of the procedure, there is a significant learning curve to understand the intricacies of chemical penetration in the skin. Consistency in results is achieved with experience and proper preoperative patient evaluation and selection.