Background There is a significant variation in the assessment, treatment, and outcomes of nasal airway obstruction and management in the published literature. This study aimed to: (1) define key components of the nasal airway, (2) identify frequent causes of nasal obstruction, and (3) review existing treatment methods. Methods A systematic review of the literature was performed, and 135 studies were included via the following criteria: English, human subjects, and a primary endpoint of nasal airway improvement. Exclusion criteria were: abstract only, no airway data, pediatric patients, cleft rhinoplasty, sleep apnea, isolated traumatic nasal reconstruction, and cadaveric-only or animal studies. Results The relevant obstructive sites include the ENV, septum, inferior turbinates, INV, and nasal bones. Addressing the alar rim alone may be insufficient, and inspection of the lateral wall and crura may be indicated. Correction of septal deviation involves attention to the bony base. Mucosal sparing treatment of inferior turbinates improves outcomes. INVs are a major source of nasal obstruction, and treatment includes spreader grafts. The bony nasal vault can contribute to nasal obstruction, including due to surgical osteotomies. Conclusions Anatomic causes of airway obstruction include the alar rims and lateral nasal walls, deviated nasal septum, inferior turbinate hypertrophy, decreased INV angle, and narrowed nasal bones. Treatments include graft placement; septoplasty; mucosal sparing turbinectomy; and lateral wall support. Pitfalls include failing to address the bony septum, over-resection of inferior turbinates, and narrowing of the nasal vault. Appreciation of airway management during rhinoplasty will improve functional outcomes. Level of Evidence V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Background: Designed in response to the failure of circumferential lower body lifts to deepen waists, oblique flankplasty with lipoabdominoplasty aesthetically reshapes not only the waist, but also the hips, buttocks, and upper lateral thighs with minimal morbidity. Methods: The oblique flankplasty with lipoabdominoplasty technique was standardized, with 5 of 56 cases presented. Operative records on the lower torso from March of 2000 to January of 2018 yielded 30 initial oblique flankplasty with lipoabdominoplasty cases and hundreds of lower body lifts. A subset of randomly selected lower body lift and flank liposuction operations yielded 91 cases. Through SurveyMonkey, the authors and 16 unbiased observers graded flank and global deformity using the Pittsburgh Rating and novel posterior trunk aesthetics scales. Results: The oblique flankplasty with lipoabdominoplasty deepened and smoothly transitioned waists. Medial rotation of the lateral buttocks over the posterior iliac spine retained lateral fullness and established hip prominence. Central buttock laxity was corrected without intergluteal cleft lengthening. The immediate result persisted, satisfying high patient expectations. There were three minor complications and three nonexcisional revisions, with no unscheduled hospital admissions. The mean flank deformity for all cases was 1.93 was by chi-square analysis, which was significantly more than 0.88 for postoperative deformity (p < 0.001). Subgroup analysis of each procedure group showed a significant reduction in deformity. Comparing flankplasty with lower body lift, oblique flankplasty with lipoabdominoplasty had slightly greater flank deformity and far greater reduction in deformity and overall aesthetic improvement. Conclusions: For grade 2 and 3 flank deformities, oblique flankplasty with lipoabdominoplasty provides a tighter skinned lower torso with gender-appropriate curvatures, including a deeper and more smoothly transitioned waist than lower body lift, leading to uniform patient satisfaction. There was minimal secondary deformity or complications. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.

Ulnar-sided carpometacarpal (CMC) joint fracture dislocations are relatively uncommon, frequently associated with fractures of the metacarpal base and/or hamate, and often sustained by young male individuals secondary to striking a hard object. The complexity of ulnar-sided CMC fracture dislocations necessitates careful restitution of anatomic alignment and joint congruency for mobility and stability. Miniaturization of the external fixation device has allowed application to the hand. Spanning external fixation utilizes the principles of "ligamentotaxis"-indirect reduction through distraction forces of capsule-ligamentous structures. Treatment options for ulnar-sided CMC fracture dislocations are varied. Our surgical technique involving an external fixation device is reviewed. Clinical and chart review was performed on the last 10 patients undergoing acute surgical repair of ulnar-sided CMC fracture dislocations with intra-articular comminution by the senior author. Surgical technique used percutaneous Kirschner wire fixation and a spanning, miniature, external fixation device. Minimal follow-up was 1 year. Radiographs from the most recent appointment were evaluated by 2 independent reviewers. Patients rated their level of pain and assessed function using a subjective outcome instrument. Mean total active motion, when comparing traumatized digit to same digit in contralateral hand, was 100%. All fractures healed primarily with maintenance of congruent joint space and without radiographic displacement or arthrosis. Patient satisfaction was high and all patients returned to preinjury level of function. Our study demonstrates the use of an external fixation device in the management of ulnar-sided CMC fracture dislocations to be effective in reestablishing and maintaining normal hand anatomy, reducing pain, increasing function, and preserving motion.

Background: Total wrist arthroplasty (TWA) is indicated to alleviate pain secondary to arthritis while preserving wrist motion. Despite vigilant measures, TWAs are susceptible to complications. The current case illustrates an array of preventable complications which are addressed through operative technique in a revision setting. Case presentation: The patient was a 72-year-old man who presented with chronic pain at the fourth carpometacarpal joint (CMCJ) and distal radioulnar joint with paresthesias in the median nerve distribution. Surgery was undertaken to address the following complications secondary to a previous TWA: impingement of the native distal ulna on the prosthesis, carpal tunnel due to metallosis and polyethylene synovitis, loose carpal component, and prominent screw at the fourth CMCJ. Surgical correction included open carpal tunnel release with extensive flexor tenosynovectomy, distal ulna resection and implant arthroplasty with shortening, revision of carpal component with bone grafting, and shortening of the ulnar screw to avoid crossing the fourth CMCJ. Within 6 months of the procedure, the patient reported resolution of neuropathic symptoms and pain-free motion of the wrist. Discussion: Preventable complications associated with TWA are individually highlighted. In addition, we compare and contrast our approach and surgical technique to current reported literature. Overall, we provide education and guidance to avoid possible TWA pitfalls. Conclusion: With this case report, we hope to increase TWA knowledge with emphasis on the requirements of judicious patient selection, preoperative planning, meticulous surgical technique, and complication awareness for subsequent optimization of wrist function, stability, and durability.

Schwannomatosis is characterized by the development of multiple schwannomas without evidence of vestibular tumors. Segmental schwannomatosis is defined as being limited to 1 limb or 5 or fewer contiguous segments of the spine. We report a case of a 38-year-old male with multiple, painful masses of the right upper extremity with associated numbness and paresthesia in the ulnar and radial nerve distribution. An open, microsurgical approach provided definitive diagnosis and treatment. Twenty-one cases of segmental schwannomatosis of the upper extremity have been reported in the literature, making this case the 22nd. It is 1 of 5 cases of segmental schwannomatosis to have simultaneous tumors in the forearm and hand. We are the first to report multiple schwannomas of the ulnar and ulnar sensory nerve and the second to report multiple schwannomas of the radial sensory nerve. We additionally review the literature regarding pathogenesis, diagnosis, and treatment of this uncommon tumor.

INTRODUCTION:Clostridium botulinum toxin is effective through cleaving presynaptic proteins at the neuromuscular junction, which prevents the release of acetylcholine and inhibits muscle contraction. Several serotypes of botulinum toxin (BT) exist; however, only 2 types have been approved by the US Food and Drug Administration for commercial and medical use, A and B. Both types of BT must be administered intramuscularly with a syringe, but the type of syringe is the injector's preference. Which syringe type is most efficient in minimizing product waste and most cost-effective for the patient and provider?METHODS:We performed a single-center, open-label, analytical study using BT therapy and 2 types of syringes for analytics of cost-effectiveness. OnabotulinumtoxinA was the neuromodulator used in this report. Vials (100 U) of BT A were each reconstituted with 2.5 mL of 0.9% sodium chloride, for a final concentration of 4 U/0.1 mL. High-dead-space syringes are compared with low-dead-space syringes: 1-mL tuberculin (TB) luer slip syringe with detachable 25-gauge needle and 1-mL ultrafine insulin syringe with an attached 31-gauge needle, respectively. After each syringe was evacuated, the TB syringe was noted to contain 0.05 mL of the remaining product in the hub.RESULTS:Providers are discarding approximately 2 U of BT per TB syringe product injection. If the physician uses 30 syringes per day, 3 days a week, for 1 year, it equals to a lost revenue of approximately $155,500 per year. To individualize the cost-effective analysis, average quantity of syringes used per patient and overall patient volume must be considered, with corresponding adjustment of cost and units discarded.DISCUSSION:The American Society of Plastic Surgeons reported that the use of neuromodulators has increased by approximately 797% from 2000 to 2016. During that period, the price of neuromodulators has also increased by approximately 85%. Considering these statistics, the type of syringe used for BT neuromodular injection is a thought-provoking concept but surrounded by a paucity of data. Overall, our data suggest that the use of ultrafine insulin syringes for injection of BT reduces product waste and is cost-effective for the patient and the provider.