Superficial temporal artery perforator flaps for reconstruction of intraoral defects.

BACKGROUND: Intraoral defects after tumor resection are often reconstructed with free tissue transfer. However, in patients who are not good candidates for free tissue transfer, regional flaps based on the superficial temporal artery can be utilized. The authors present our technique to reconstruct intraoral defects with the superficial temporal artery perforator (STAP) flap and early outcomes. METHODS: Five patients underwent STAP flaps for defects including the hard palate, buccal sulcus, floor of mouth, and retromolar trigone between 2017 and 2019. The mean defect size was 5.6 × 3.4 cm2 (3 × 3 cm2 - 7 × 4 cm2 ). The mean age was 74 (57-88) and all patients had recurrent cancer. External Doppler, indocyanine green laser angiography, and FLIR thermal imaging were used intra-operatively to identify the best perforators and plan for flap design. RESULTS: The mean flap size was 7.6 × 3.5 cm2 (6 × 3 cm2 - 10 × 5 cm2 ). Four flaps were based off of the posterior branch of the STA, while the fifth was based off of the anterior branch. Two donor sites were closed primarily, and three required skin grafts. One patient experienced partial flap necrosis. There were no complete flap losses and no donor site complications. Average follow up was 14.6 months (9-20 months). All patients maintained preoperative level of speech, mastication, and oral continence. CONCLUSIONS: The STAP flap can be based on the anterior or posterior branch of the superficial temporal artery and is a useful regional flap for intraoral defects after tumor resection.

Use of FLIR ONE Smartphone Thermography in Burn Wound Assessment.

OBJECTIVE: Forward-looking infrared (FLIR) thermography technology uses a handheld camera that measures skin infrared emissivity, captures photographs, and can be analyzed through specialized software. Forward-looking infrared images can be used to analyze and correlate burn wound temperature with burn depth, burn progression, and the number of days needed for healing. FLIR ONE is a miniature, smartphone-compatible thermal imaging camera that has been used to assess inflammation in diabetic foot ulcers, as well as locating perforators in flap surgery. However, FLIR ONE's reliability in burn wound assessment has not been evaluated. This case series investigates the accuracy of FLIR ONE in comparison with the widely used indocyanine green (ICG) angiography in assessing burn wounds. METHODS: Five acute third-degree burn wounds were assessed using ICG angiography and FLIR ONE imaging (infrared thermography) to determine burn extent before surgical intervention. Patients were taken to the operating room within 48 hours of presentation; FLIR ONE images were captured approximately 35 to 45 cm above the wound surface. Margins of unsalvageable tissue as determined by ICG and FLIR ONE were marked and compared. RESULTS: The area of unsalvageable tissue as determined by FLIR ONE closely corresponded to the area determined by ICG. FLIR ONE overestimated unsalvageable tissue margins by approximately 1 to 2 cm. The area estimated by ICG consistently overlapped with more than 90% of the area estimated by FLIR ONE. CONCLUSIONS: There is a strong correlation between FLIR ONE and ICG when assessing salvageable tissue in third-degree burn wounds. FLIR ONE maximizes the convenience and cost-effectiveness of infrared thermography technology but may overestimate unsalvageable tissue area. FLIR ONE is promising as an adjunct to current imaging modalities such as ICG but requires further study for comparison.

Peripheral Pruning: A Safe Approach to Thinning Extra-Large Anterolateral Thigh Flaps.

BACKGROUND: Thinning of anterolateral thigh (ALT) flaps has been described to achieve optimal contouring. Previous studies caution against thinning large flaps owing to the risk of vascular compromise leading to partial or total flap necrosis. This study aims to demonstrate a reliably safe method for thinning extra-large (>240 cm) flaps. METHODS: A retrospective review of 53 consecutive ALT flaps performed at a single institution was completed. Of these flaps, 18 (34%) were thinned primarily by sharp excision of sub-Scarpa's fat along the periphery of the flap using loupe magnification. A central cuff of fat is left to surround and protect the perforator. RESULTS: There were 53 total flaps in our series. Eighteen of the flaps were thinned by peripheral pruning. Eleven (61%) of the flaps reconstructed defects of the lower extremity, whereas 4 (22%) reconstructed upper extremity defects and 3 (17%) reconstructed scalp defects (Table 1). The mean size of the thinned flap group was 35% larger than the nonthinned group (n = 18, 261 cm ± 109 cm vs n = 35, 192 cm ± 146 cm). Ten thinned flaps (55%) were extra large, with flap areas over 240 cm. The average amount of excised fat weighed 41 g ± 18 g. The average body mass index in the thinned flap group was 28.8 kg/m, which is classified as overweight. The average body mass index in the nonthinned flap group was 24.6 kg/m, which is classified as normal weight (Table 2). There were no cases of partial flap necrosis in the thinned flap group. A single case of total flap loss occurred in the thinned flap group secondary to hematoma formation during administration of therapeutic heparin for a mechanical heart valve. There were no other complications in the thinned flap group. CONCLUSIONS: This is the first study to demonstrate a reliable technique for primary thinning of extra-large ALT flaps in the Western population. No complications related to thinning were observed. Peripheral pruning of sub-Scarpa's fat is a safe and reliable method of thinning extra-large ALT flaps without increasing the risk of flap necrosis.

Pediatric Facial Fractures: An Assessment of Airway Management.

Pediatric facial fractures present unique and challenging management considerations, especially with regards to airway management. Anatomical differences in children increase both airway resistance and the difficulty of intubation. A surgical airway may be required if intubation is unable to be performed. The purpose of this study was to examine a single center's experience with pediatric facial fractures to determine the frequency of advanced airway use, as well as the risk factors that may predispose a patient to requiring an advanced airway. A retrospective review of all facial fractures at a level 1 trauma center was performed from 2000 to 2012. Patients age 18 years and younger were included. Patient demographics were collected, as well as location of fractures, concomitant injuries, services consulted, and surgical management strategies. Information was collected regarding the need for an advanced airway, including intubation and the need for a surgical airway. A total of 285 patients met inclusion criteria. Of these, 57 patients (20%) required emergency intubation and 5 (1.8%) required a surgical airway. Intubation was significantly related to fractures of the midface, frontal sinuses, spine, skull, and pelvis, as well as depressed Glasgow coma scores and traumatic brain injury. The need for a surgical airway is extremely uncommon (1.8%), and tracheostomy was only needed in the setting of penetrating head trauma. Both emergent intubation and tracheostomy are associated with complications, but these complications must be weighed against the potentially life-saving measure of securing an airway.

Microscopic versus open approach to craniosynostosis: a long-term outcomes comparison.

The purpose of this retrospective study was to evaluate the long-term outcomes of using the microscopic minimally invasive approach for the treatment of nonsyndromic craniosynostosis. During the last 10 years, 180 consecutive patients with nonsyndromic craniosynostosis were treated: 67 patients were treated with microscopic minimally invasive approach, and 113 were treated with the open approach. In the microscopic group, there was 1 intraoperative complication (1.5%). There were 10 postoperative complications (14.9%), of which 9 required major reoperations and 1 required a minor procedure. The major complications occurred in 7 unicoronal patients (58.3%) and 2 metopic patients (25.0%). In the open-approach group, there were 8 complications (7.1%), 2 patients required major reoperations and 6 required minor procedures. Chi-squared test showed that there was no statistically significant difference in the overall complication rate between the microscopic and open approaches. However, in the unicoronal patients, the complication rate was significantly higher in the microscopic group (P < 0.001). In conclusion, the microscopic approach is our treatment of choice in nonsyndromic patients with sagittal and lambdoidal craniosynostosis. We no longer use the microscopic approach in patients with unicoronal or metopic craniosynostosis because of the high complication rate.

Updates on Excisional Procedures for Lymphedema.

Significance: Excisional procedures for lymphedema have been used for over a century, and many surgeons have abandoned the old techniques as improvements in nonsurgical management and microsurgery have limited their clinical utility. Nonetheless, excisional procedures remain relevant as an important tool in the comprehensive surgical management of lymphedema. Recent Advances: Modifications to the Charles procedure and other direct excisional procedures have improved the complication profile and patient outcomes. Moreover, the use of liposuction techniques for minimally invasive tissue excision has expanded the scope of excisional surgery to benefit patients with less severe lymphedema. Recent operations combining excisional and physiologic procedures may prove to have superior results to stand-alone procedures. Critical Issues: No standard protocol exists for the comprehensive surgical management of lymphedema. Proper patient selection for any procedure requires robust outpatient assessment, cooperation with physiotherapy treatment teams, careful patient stratification, and a clear understanding of the procedure's goal. Future Directions: Larger, prospective trials will be needed to elucidate the ideal timing and combinations of techniques to optimize outcomes for patients with late-stage lymphedema.

Saved by the SPY: Ulnar Artery Reconstruction With LCFA Graft for Hypothenar Hammer Syndrome.

Introduction: Hypothenar Hammer syndrome refers to thrombosis/aneurysm of ulnar artery at Guyon's canal in wrist, with resultant arterial insufficiency in the ulnar artery distribution.1 Patients typically describe unilateral symptoms in the fourth and/or fifth fingers of the hand. Symptoms can range from asymptomatic to pain, pallor, paresthesia, weakness, cold intolerance, and eventually ulceration, necrosis, and gangrene of the distal digits.1 Treatment options range from conservative, lifestyle management, to medication, and ultimately to surgical intervention. In this case report, we outline the second successful lateral circumflex femoral artery (LCFA) graft reconstruction of the ulnar artery in the setting of Hypothenar Hammer Syndrome conducted by the senior author. However, during this procedure, the use of intraoperative intravenous (IV) injection of indocyanine green (ICG) dye (hereafter ICG) imaging helped identify an additional area of stenosis previously unseen on pre-operative MRA, therefore enabling us to perform a more adequate resection and repair. To our knowledge, the use of intraoperative ICG for Hypothenar Hammer Syndrome and/or ulnar artery reconstruction has not been documented in the literature.

Ultrahigh Frequency Ultrasound Imaging of the Hand: A New Diagnostic Tool for Hand Surgery.

BACKGROUND: Ultrasonography is a cost-effective, noninvasive, and expedient imaging modality with numerous clinical applications. Conventional ultrasound uses transducers with frequencies that range from 5 to 12 MHz. However, ultrahigh frequency ultrasound (UHFUS) is capable of producing frequencies up to 70 MHz, which can achieve tissue resolution up to 30 µm. The purpose of our study is to present the capabilities of a novel technology and to describe its possible clinical applications for hand surgery. METHODS: The Vevo 2100 (VisualSonics, Toronto, Canada) system was used to perform all ultrasound exams. Four unique linear array transducers were employed. All studies were performed by the authors, who have no formal training in ultrasound techniques, on 5 healthy resident volunteers and 1 clinical patient under institutional review board approval. RESULTS: A series of 10 static images per participant and dynamic, real-time videos were obtained at various locations within the hand and wrist. UHFUS is capable of quickly and reliably imaging larger structures such as foreign bodies, soft tissue masses, and the flexor tendons, and diagnosing an array of pathologies within these structures. In addition, UHFUS can identify much finer structures such as the intimal layer of the arteries in the hand and individual fascicles within the digital nerves to provide data about vessel quality and vascular and neural pathologies. CONCLUSIONS: UHFUS is a novel technology that shows multiple advantages over conventional ultrasound for imaging the fine superficial structures of the hand and wrist, and can be deployed by the surgeon at the point of care.

Bowler's Thumb: Case Report and Review of the Literature.

OBJECTIVE: Traumatic neuropathy of the ulnar digital nerve of the thumb occurs in patients who undergo chronic frictional irritation of the nerve. The condition is aptly termed bowler's thumb, as it commonly afflicts patients who bowl and keep their thumb in the ball for an extended period of time. It is a pathology that rarely appears in the literature and for which standard treatment is unclear. METHODS: A 68-year-old man with a history of avid bowling presented with a chief complaint of left thumb numbness and tingling for several months. Physical examination demonstrated a small tender mass along the ulnar surface of the left thumb with a positive Tinel's sign and diminished 2-point discrimination distal to the mass. The patient's symptoms did not improve with conservative measures. Here, we describe his surgical treatment and review the current literature. RESULTS: Our patient underwent neurolysis of the ulnar digital nerve of the thumb, with placement of a porcine extracellular matrix nerve wrap. The patient reported improvement of symptoms within 2 weeks and was able to return to his previous level of activity. In the literature, treatment has included from conservative measures such as pressure relief and splinting to surgical intervention including neurolysis, transposition, or neurectomy with nerve grafting. CONCLUSIONS: We present neurolysis for treating bowler's thumb as a viable option that may relieve symptoms rapidly while obviating need for adductor transection. Porcine extracellular matrix nerve wrap can be placed in an attempt to prevent recurrence of neuroma, but long-term follow-up is necessary.