Plastic and reconstructive surgery最新文献

Summary: Various neurovascular free muscle transfers for smile reconstruction in patients with facial paralysis have been reported. However, these methods focused on perioral smiling rather than eye smiling. Although the lower eyelid does not contribute significantly to eyelid closure, dynamic reanimation of the upward movement of the lower eyelid with bulging of the malar region during smiling is important in smile reconstruction. The authors present a novel procedure for smiling eye and perioral smiling. The V-shaped latissimus dorsi muscle flap containing the descending branch (DB) of the thoracodorsal nerve (TDN) was used. Muscle A (15 to 17 cm), which is located along the main trunk of the DB, is much longer than muscle B (10 to 12 cm), which is along the branch of DB. A distal stump of the TDN involved in muscle B was prepared. The true trunk and distal stump of the TDN were sutured to the contralateral facial and ipsilateral masseteric nerves, respectively. The central region of muscle A was positioned at the lateral part of the lower eyelid; the distal end of long muscle A was affixed to the temporal region, which enabled periocular movements and narrowing of the palpebral fissures alongside perioral smiling when muscle A contracted. Nine patients with complete flaccid facial paralysis were treated. All patients attained muscle contraction induced by the ipsilateral masseteric and contralateral facial nerves. The smiling eye appearance was observed in 7 of 9 patients. This procedure simultaneously improves paralytic ectropion at rest and aids eyelid closure and enables early voluntary smile and a later spontaneous smile.

Background: The microsurgical technique has been used to dissect macrodactyly into a composite tissue flap with arteries, veins, and toenail phalanxes to reconstruct the deformed toe into a nearly normal one.

Methods: This study retrospectively collected relevant data from 10 patients undergoing toenail composite tissue flaps to reconstruct their macrodactyly. This case series included 2 female and 8 male pediatric patients with a mean age of 27.2 months (range, 8 to 64 months), who had been followed up for an average of 24.3 months after the reconstruction surgery (range, 3 to 57 months). The American Orthopedic Foot and Ankle Society Scale score was obtained by the operating surgeons before and after the reconstruction operation, and all the patients completed the postoperative questionnaires.

Results: The reconstruction surgery took an average of 3 hours with minimal intraoperative blood loss. The postoperative American Orthopedic Foot and Ankle Society Scale score was significantly improved from the one before surgery (33.3 ± 12.4 versus 76.3 ± 10; P ≤ 0.001). The average score obtained from the postoperative questionnaires for foot macrodactyly was 9.4, in the range between 0 and 10 for the functional and aesthetic restorations. All reconstructed toes were viable without signs of infection or necrosis and possessed satisfactory function and appearance during the follow-up period after the reconstruction operations.

Conclusion: It is feasible and effective to dissect a macrodactyly into a composite tissue flap for being reconstructed into a nearly normal toe.

Background: Orthognathic surgery (OGS) is a common intervention used to correct midfacial hypoplasia in patients with cleft. Previous studies have reported that Le Fort I maxillary advancement may affect velopharyngeal function, but similar investigations focusing on 2-jaw OGS have not been conducted.

Methods: A total of 162 consecutive patients with cleft lip and palate who underwent 2-jaw OGS between 2015 and 2020 were enrolled. Clinical data were collected, and preoperative and postoperative skeletal measurements were obtained from cephalometric images. Velopharyngeal function was evaluated using perceptual analysis and nasopharyngoscopy. A logistic regression model was used for risk factors associated with changes in velopharyngeal function.

Results: After 2-jaw OGS, 82.1% of patients showed no change in velopharyngeal function, 3.7% experienced improvement, and 14.2% exhibited worsening of function. Changes in velopharyngeal function were statistically significant compared with velopharyngeal status before OGS. Multivariable logistic regression revealed that the amount of maxillary advancement independently predicted the deterioration of velopharyngeal function after OGS (odds ratio, 1.74; 95% CI, 1.20 - 2.52; P = 0.004). The receiver operating characteristic curve based on maxillary advancement demonstrated good discrimination, with an area under the curve of 0.727 (95% CI, 0.62 - 0.83; P = 0.001). The Youden index was 4.27 mm.

Conclusions: Despite the risk of velopharyngeal function deterioration in patients with cleft palate undergoing OGS, some individuals experienced improved function after 2-jaw OGS. The extent of maxillary advancement has a negative effect on velopharyngeal function.

Clinical question/level of evidence: Therapeutic, III.

Background: The standard procedure for managing skeletal class III malocclusion is maxillary advancement with mandibular setback. Occlusal plane-altering orthognathic surgery, such as jaw rotation, is useful as well. Although clockwise jaw rotation is a common procedure, its mechanism has not been well investigated. With this study, the authors aim to introduce the gearing effect to correct class III malocclusion in Asians by maxillary posterior impaction using clockwise rotation without advancing the maxilla.

Methods: Patients with class III correction with clockwise rotation of the maxillomandibular complex without maxillary advancement were included; those who underwent genioplasty were excluded. Various facial skeletal cephalometric landmarks were measured using artificial intelligence-based cephalometric analysis software. The gearing effect was determined by dividing the lower anterior facial height (LAFH) in relatively short and long groups compared with those in the anterior nasal spine to posterior nasal spine length.

Results: In a total of 29 patients, the amount of menton setback between group 1 ( n = 15; short LAFH) and group 2 ( n = 14; long LAFH) was 1.67 ± 0.66 and 2.74 ± 0.99 mm per 1 mm of posterior nasal spine impaction, respectively ( P = 0.002), and 1.58 (interquartile range, 0.78) and 1.95 (interquartile range, 1.05) mm per 1 degree of clockwise rotation of the palatal angle, respectively ( P = 0.007). The convexity of the A point was improved without any significant change in the sella-nasion-A point angle before and after surgery.

Conclusions: This article addresses the scientific evidence regarding the impact of clockwise rotational orthognathic surgery based on the gearing effect. The mandibular setback turned out to be more effective in patients with a long LAFH.

Clinical question/level of evidence: Risk, II.

Background: Autologous tissue is the only permanent option for breast reconstruction. Whereas abdominal tissue remains popular, considering alternative donor sites ensures comprehensive care tailored to a patient. The thigh has been established as an excellent choice in autologous reconstruction. The authors present a 10-year experience with 405 profunda artery perforator (PAP) flaps.

Methods: An institutional review board-approved 10-year retrospective review of all patients treated with PAP flaps for breast reconstruction was performed. Procedures were carried out by 2 surgeons at the same institution. PAP flaps were divided into 4 consecutive groups with approximately 100 flaps in each group. Demographics, indications, intraoperative data, postoperative complications, revisions, and patient-reported outcomes were recorded and analyzed.

Results: A total of 207 patients (405 PAP flaps) were included. This accounted for 17.2% of all breast reconstruction flaps. A total of 55% of patients underwent a multiflap procedure. The average flap weight was 354.3 g (±117.2), which decreased significantly over time ( P < 0.001). Rates of major complications were 9.6% wounds, 4.4% seromas, 4.7% hematomas, and 3.5% infections. Total flap loss was 2%, 67% of which were in stacked cases. Satisfaction routinely improved from before to after surgery.

Conclusions: As available flap donor sites continue to evolve, tailoring breast reconstruction to the individual patient is standard in centers of excellence. The PAP flap has emerged as an excellent choice for autologous-based breast reconstruction through use of proper patient selection and surgical technique.

Clinical question/level of evidence: Therapeutic, IV.

Background: Transversus abdominis plane (TAP) blocks improve pain control and reduce narcotic medication requirements in various surgical procedures. Liposomal bupivacaine may provide more sustained analgesia. This study compared pain-related outcomes between standard bupivacaine and liposomal bupivacaine TAP blocks after autologous breast reconstruction.

Methods: The authors conducted a single-center, single-blinded randomized controlled trial between March of 2021 and December of 2022. Patients undergoing deep inferior epigastric perforator flap breast reconstruction in a standardized enhanced recovery after surgery pathway were randomized to receive intraoperative TAP blocks with either bupivacaine and epinephrine (control group) or liposomal bupivacaine, bupivacaine, and epinephrine (experimental group). Primary outcome was postoperative narcotic medication requirements, with secondary outcomes of pain scores, length of stay, and narcotic medication refills.

Results: A total of 117 patients met inclusion criteria (59 control patients and 58 experimental patients). Demographic characteristics, comorbidities, breast pathologic variables, surgery laterality, and immediate versus delayed reconstruction status were equivalent between groups. The control group had significantly higher average pain scores postoperatively (4.3 versus 3.6; P = 0.004). However, there were no significant differences in mean narcotic use (66.9 morphine milligram equivalents versus 60.2 morphine milligram equivalents; P = 0.47). Both length of stay and postoperative narcotic prescription refills were equivalent between groups (2.1 days versus 2.2 days, P = 0.55; 22% versus 17.2%, P = 0.52).

Conclusions: The addition of liposomal bupivacaine to the standard bupivacaine TAP block mixture in a standardized enhanced recovery after surgery protocol did not demonstrate a significant reduction in postoperative narcotic requirements after deep inferior epigastric perforator flap breast reconstruction compared with standard bupivacaine alone. Patient-reported pain scores, however, were lower among liposomal bupivacaine patients after the initial 24 hours postoperatively and consistent with a longer duration of analgesia.

Clinical question/level of evidence: Therapeutic, II.

Background: For patients with cleft lip/palate, adolescence is a time of maxillofacial growth and complex psychosocial stressors. The personal significance of facial differences may change, making patient-reported outcomes measures invaluable. In this study, we use several scales from the CLEFT-Q and FACE-Q to explore how aesthetic outcomes differ by age and by gender among patients with unilateral cleft lip/palate.

Methods: This was a multicenter, cross-sectional study that prospectively collected CLEFT-Q and FACE-Q data across 6 cleft treatment centers during clinical appointments from 2019 to 2022. Subjects were aged 8 to 22 years, with unilateral cleft lip, alveolus, and palate, who had not undergone tertiary operative care (maxillary advancement or septorhinoplasty) at the time of survey response. Data cross-sections were prepared by age (8 to 10, 11 to 13, and 14 years or older), by gender, and by age and gender together.

Results: Older age groups reported poorer aesthetic outcomes and worse appearance-related distress compared with younger groups. Although male and female subjects reported similar aesthetic outcomes, female subjects reported more appearance-related distress. When considered simultaneously, age and gender appear to have an intersectional impact on perceived aesthetic outcome and appearance-related distress during adolescence.

Conclusions: This exploratory project suggests that patients with cleft lip/palate may perceive worsening of facial aesthetics throughout the course of adolescence, the exact pattern of which may be dependent on gender. Future work will evaluate this hypothesis using longitudinal cohorts. It will be important to investigate psychosocial factors that may impact these outcomes, and also to quantify the impact of tertiary operative care on these outcomes.

Clinical question/level of evidence: Risk, II.

Background: The Schnur scale used body surface area (BSA) to determine the amount of breast tissue resection in reduction mammaplasty, resulting in a greater requirement of breast weight removal in patients with larger BSA. The authors aimed to demonstrate BSA variance among women with similar mastectomy weights and the range of mastectomy weights among women with comparable BSAs.

Methods: A retrospective chart review of patients who underwent mastectomy from October of 2021 to June of 2022 was performed. Patients were included if they underwent skin-sparing or nipple-sparing mastectomy with a minimum specimen weight of 700 g. Patient's BSA, body mass index (BMI), mastectomy weight, and Schnur weight requirement (SWR) were collected.

Results: A total of 130 patients (194 breasts) were included. There was significant variance in mean BSA, BMI, SWR, and SWR-to-mastectomy weight ratio among women with similar mastectomy weights. BSA varied by as much as 0.82 units, BMI varied by as much as 32 kg/m 2 , and SWR varied by as much as 1365 g within the same mastectomy weight group. There was also significant variance in mastectomy weights among women with comparable BSA, especially in BSA groups greater than 2.20, with the greatest range in mastectomy weights being 1684 g.

Conclusions: Analysis of mastectomy patients showed no predictable relationship between BSA and breast weight. There was significant variance in the BSA of patients with similar breast weights, and conversely in breast weights of patients with comparable BSA. Therefore, strict adherence to the Schnur weight requirement can prevent patients with macromastia from receiving breast reductions.