Consensus Report and Recommendations on the Management of Late-stage Internal Derangement of the Temporomandibular Joint.

Introduction: This report investigates late-stage internal derangement (ID) of the temporomandibular joint (TMJ) with the aim of establishing a more effective and personalized treatment protocol to improve patients' quality of life (QoL). Material and methods: A consensus was reached among maxillofacial surgeons specializing in LSID, based on a literature research and collective expert experience following the Delphi method. Consensus was considered to be achieved when a response received at least 80% of votes. Results: Four expert groups were established, respectively, focusing on diagnosis, minimally invasive surgery (MIS), open surgery and joint replacement. A comprehensive approach to late-stage ID of the TMJ requires a consensus report. This underscores the need for a personalized treatment plan, considering the variability in clinical presentations and progression of this pathology. Our recommendations aim to optimize clinical outcomes and enhance patient QoL.

Quality of life, craniomandibular function, and psychosocial factors related to pain and movement in patients with head and neck cancer.

PURPOSE: To describe the characteristics of and the associations between health-related quality of life, pain, craniomandibular function, and psychosocial factors related to pain and fear of movement in patients with head and neck cancer. METHODS: Seventy-eight patients diagnosed with HNC were recruited. Measurements of the maximum mouth opening range and pressure pain thresholds on the masseter muscle and the distal phalanx of the thumb were conducted, as well as a battery of self-report questionnaires were administrated, including the QoL Questionnaire (EORT QLQ-H&N35), Numeric Rating Scale (NRS), Pain Catastrophizing Scale (PCS), the Spanish translation of the Tampa Scale for Kinesiophobia for Temporomandibular Disorders (TSK-TMD), and the short version of the Craniofacial Pain and Disability Inventory (CF-PDI-11). RESULTS: The study sample (66.7% men, mean age 60.12 [11.95] years) experienced a moderate impact on their QoL levels (57.68 [18.25] EORT QLQ-H&N35) and high kinesiophobia values (20.49 [9.11] TSK-TMD). Pain was present in 41% of the patients, but only 3.8% reported severe pain. 26.4% had a restricted mouth opening range, and 34.62% showed significant catastrophism levels. There were strong positive correlations between EORT QLQ-H&N35 and CF-PDI-11 (r = 0.81), between NRS and CF-PDI-11 (r = 0.74), and between PCS and CF-PDI-11 (r = 0.66). CONCLUSION: Patients with HNC experience negative effects in their QoL, related to their impairment in craniomandibular function. Fear of movement, pain intensity, and catastrophism are associated with poorer functionality; relationships that should be considered when attempting to improve health care.

Anesthetic Management of a Patient with Madelung's Disease Presenting with a Giant Cervical Lipoma: A Case Report.

Madelung's disease is characterized by the presence of multiple symmetric and nonencapsulated facial, neck, and upper trunk lipomas. Depending on the location and size of lipomas, there may be concerns for difficult airway management and cardiovascular collapse. We present the anesthetic management case of a patient with cervical and mediastinal lipomas who underwent elective cervical lipoma resection.

Surface scanned 3D designed customized chinstrap for the treatment of intraoral dehiscence in polytraumatized patient. Technical note.

The advent of 3D surgical technology has revolutionized personalized medicine, enabling the development of tailored solutions for individual patients. This technical note presents the application of 3D technology in designing a customized chin guard using flexible 3D resin. The process involves surface scanning the lower facial region of a polytraumatized patient with a structured-light surface 3D scanner, generating a detailed point cloud. The acquired data undergoes meticulous processing within an specific professional software, including erasing unwanted portions, aligning frames, and mesh consolidation. Subsequently, the mesh is exported as an STL file and further refined using a 3D mesh management software. A customized chin support is designed for the specific patient's needs, exported in STL format, and 3D printed using a stereolithography (SLA) printer with Flexible 80A resin. Post-printing procedures involve washing and curing to ensure biocompatibility and optimal mechanical characteristics. The resultant customized chin guard, attached to elastic support straps, offers a precise fit to the patient's anatomy, enhancing comfort and allowing for extended wear. This innovative approach addresses the challenge of surgical intraoral wound dehiscence in a polytraumatized patient, showcasing the potential of 3D technology in personalized medical solutions for complex cases. Key words:Surface scanner, 3D surgery, customized surgery, chinstrap.

Virtual Surgical Planning for Temporomandibular Joint Reconstruction with Stock TMJ Prostheses: Pilot Study.

The temporomandibular joint (TMJ) is one of the most complex joints in the human anatomy. In advanced degenerative stages, conservative or minimally invasive surgical therapies have failed to restore joint function, and joint replacement with prostheses has been required. Stock prostheses, compared to custom-made prostheses, are much less expensive and require less pre-operative preparation time. Four patients followed for years for temporomandibular dysfunction and previously operated on by arthroscopy or open joint surgery that have been reconstructed with stock TMJ prostheses (STMJP) through virtual surgical planning (VSP) and an STL model with surgical and positioning guides were included. The median follow-up was 15 months; the median number of previous TMJ surgeries was 2. The mean preoperative MIO was 24.6 mm and at longest follow-up was 36.4 mm. The median preoperative TMJ pain score was 8, and the median postoperative TMJ pain was 3. All patients have improved their mandibular function with a clear improvement of their initial situation. In conclusion, we believe that stock TMJ prostheses with virtual surgical planning and surgical guides are a good alternative for TMJ reconstruction at the present time. Nonetheless, prospective and randomized trials are required with long-term follow up to assess their performance and safety.

3D designed in-house positioning and cutting guide system for genioplasty surgery. Technical note and case report.

Advances in 3D printing technology have the potential to significantly improve the workflow of maxillofacial surgical planning. In-house fabricated custom positioning and cutting guides allow for intraoperative reproduction of pre-planned osteotomy cuts, which can result in greater surgical accuracy and patient safety while maintaining an acceptable cost-effectiveness ratio. The design and creation of the customized surgical guides is performed in our hospital fab lab, which allows time savings, from an average of 10 days to just 24 hours, and a cost reduction of more than 90%. The process begins with the import of the pre-surgical facial CT scan into 3D software that allows to perform the surgical cuts virtually and the manipulation of the segments. Once the virtual planning of the surgery has been performed, the next step is the creation of the cutting and positioning guides. The final step is the printing of the guides in surgical resin and their sterilization. In addition, post-surgical models can be 3D printed to pre-mold the plates on them, which saves surgical time. The mentoplasty surgery is a simple example of how 3D surgery can be applied to maxillofacial surgery in an efficient way obtaining all the advantages of customized surgery with a limited investment in time and resources. Key words:3Dsurgery, customized, personalized medicine, genioplasty, surgical guides, in house.

Improving fragility hip fracture care through data: a multicentre experience from a country with an emerging economy during the COVID-19 pandemic.

INTRODUCTION: In low-to-middle-income countries (LMIC), the orthogeriatric model of care is still in its early stages of development. This study describes the initial results of the first online fragility hip fracture database to be setup in the Philippines using a modified minimum common dataset to generate outcomes data based on current hospital practices. METHODS: A multicentre prospective cohort study among 12 Philippine hospitals was conducted from June 2020 to February 2021. Thirty-day mortality, morbidity and mobility were measured. Significant factors associated with mortality were determined. RESULTS: 158 elderly patients with fragility hip fractures were included in the study. Nine patients (5.7%) were confirmed or suspected to have COVID-19 infection. Median time of injury to admission was at least 3 days (IQR: 1.0-13.7). Overall, 80% of patients underwent surgical intervention with a median time from admission to surgery of at least 5 days (IQR: 2.5-13.6). Thirty-day mortality and morbidity rates for acute fragility fractures were 3.7%. Factors significantly associated with early mortality were poor prefracture mobility, COVID-19 infection, radiograph of the abnormal chest and conservative treatment. Non-surgical patients had no functional mobility or were wheelchair users and had a significantly higher morbidity rate than surgically treated patients (13.6% vs 1.8%; p=0.031). CONCLUSION: Despite treatment delays unique to an LMIC, short-term outcomes remain favourable for non-COVID-19 fragility hip fracture patients treated with surgery. Prompt admission and multidisciplinary care for elderly hip fracture patients while maintaining protective measures for COVID-19 infection control are recommended. The quality of data collected illustrates how this online database can provide a framework for a sustainable audit or registry as well as provide a platform for the introduction of orthogeriatric concepts at a multiregional scale.

Depth of Invasion: Influence of the Latest TNM Classification on the Prognosis of Clinical Early Stages of Oral Tongue Squamous Cell Carcinoma and Its Association with Other Histological Risk Factors.

BACKGROUND: The American Joint Committee on Cancer (AJCC), in its 8th edition, introduces modifications to the previous TNM classification, incorporating tumour depth of invasion (DOI). The aim of this research is to analyse the prognosis (in terms of disease-free survival and overall survival) of clinical early stage (I and II) squamous cell carcinomas of the oral tongue according to the DOI levels established by the AJCC in its latest TNM classification to assess changes to the T category and global staging system and to evaluate the association between DOI and other histological risk factors. METHODS: A retrospective longitudinal observational study of a series of cases was designed. All patients were treated with upfront surgery at our institution between 2010 and 2019. The variables of interest were defined and classified into four groups: demographic, clinical, histological and evolutive control. Univariate and multivariate analyses were carried out and survival functions were calculated using the Kaplan-Meier method. Statistical significance was established for p values below 0.05. RESULTS: Sixty-one patients were included. The average follow-up time was 47.42 months. Fifteen patients presented a loco-regional relapse (24.59%) and five developed distant disease (8.19%). Twelve patients died (19.67%). Statistically significant differences were observed, with respect to disease-free survival (p = 0.043), but not with respect to overall survival (p = 0.139). A total of 49.1% of the sample upstaged their T category and 29.5% underwent modifications of their global stage. The analysis of the relationship between DOI with other histological variables showed a significant association with the presence of pathological cervical nodes (p = 0.012), perineural invasion (p = 0.004) and tumour differentiation grade (p = 0.034). Multivariate analysis showed association between depth of invasion and perineural invasion. CONCLUSIONS: Depth of invasion is a histological risk factor in early clinical stages of oral tongue squamous cell carcinoma. Depth of invasion impacts negatively on patient prognosis, is capable per se of modifying the T category and the global tumour staging, and is associated with the presence of cervical metastatic disease, perineural invasion and tumoural differentiation grade.

HPV infection in oral cancer, our experience: prevalence, clinical implications, and current vaccination program in Spain.

Background: Oral cancer is the 11th most common type of cancer in the world, with established major risk factors as tobacco and alcohol, and recently included high-risk human papillomavirus types 16 and 18. HPV types 16 and 18 are the etiologic agents of cervical cancers and a proportion of oropharyngeal cancers. However, the picture of HPV and the clinical implications of oral cancers are not clear with most reports combining oral cancer data with head and neck cancers. It has been confirmed as a favorable prognostic factor in oropharyngeal cancer. However, the prognostic value of HPV in oral squamous cell carcinoma is still unclear. Material and Methods: The main objective of this article is to present the evidence encountered following a bibliographical review of recent publications specifically related to oral cancer and its differences from oropharyngeal cancer. The secondary goals are to present the findings of a five-year retrospective observational study of the prevalence of HPV infection in oral cancer patients treated by the Oral and Maxillofacial Surgery Department at La Paz University Hospital (Madrid, Spain), and finally, we to evaluate and compare our country's HPV prevention program in comparison to other European countries. Results: According to the review of the literature, HPV positive oral squamous cell carcinoma is associated with significantly decreased overall survival and distant control. Bibliographic review suggest HPV infection can be used as a negative prognostic factor in oral squamous cell carcinoma. Conclusions: As regards diagnostic testing for HPV, it should be extended to as many cases of oral cavity squamous cell carcinoma as possible, especially in those with risk factors. The current vaccination program in Spain does not have adequate coverage and is significantly under the level of other European Union countries; it should be expanded and catch-up strategies should be included. Key words:HPV, OSSC, Papillomavirus, oral carcinoma, prevention.

Use of surgical bone cement to increase the projection of the nasomaxillary buttress in a case of orthognathic surgery. Technical note.

The soft tissue outcome of the projection at the level of the nasomaxillary buttress is difficult to manage in cases of severe hypoprojection, being orthognathic surgery resolutive at the occlusal level but sometimes insufficient at the level of esthetic outcome. The literature describes the use of alloplastic prostheses and autologous bone grafts, but there are few documented cases of the use of premolded surgical cement for this purpose. The main advantage of the use of bone cement over the alternatives described is its ability to be premolded for customization, low cost, easy availability, speed of preparation and minimal comorbidity. This technical note describes the surgical steps and outcome of the use of surgical bone cement for projection augmentation at this level, including notes on preparation, premolding and fixation. Key words:Orthognathic surgery, maxillary surgery, surgical bone cement, nasomaxillary buttress.

A Quantitative and Qualitative Clinical Validation of Soft Tissue Simulation for Orthognathic Surgery Planning.

The purpose of this study was to perform a quantitative and qualitative validation of a soft tissue simulation pipeline for orthognathic surgery planning, necessary for clinical use. Simulation results were retrospectively obtained in 10 patients who underwent orthognathic surgery. Quantitatively, error was measured at 9 anatomical landmarks for each patient and different types of comparative analysis were performed considering two mesh resolutions, clinically accepted error, simulation time and error measured by means of percentage of the whole surface. Qualitatively, evaluation and binary questions were asked to two surgeons, both before and after seeing the actual surgical outcome, and their answers were compared. Finally, the quantitative and qualitative results were compared to check if these two types of validation are correlated. The quantitative results were accurate, with greater errors corresponding to gonions and lower lip. Qualitatively, surgeons answered similarly mostly and their evaluations improved when seeing the actual outcome of the surgery. The quantitative validation was not correlated to the qualitative validation. In this study, quantitative and qualitative validations were performed and compared, and the need to carry out both types of analysis in validation studies of soft tissue simulation software for orthognathic surgery planning was proved.

Virtual Surgical Planning and Customized Subperiosteal Titanium Maxillary Implant (CSTMI) for Three Dimensional Reconstruction and Dental Implants of Maxillary Defects after Oncological Resection: Case Series.

Maxillectomies cause malocclusion, masticatory disorders, swallowing disorders and poor nasolabial projection, with consequent esthetic and functional sequelae. Reconstruction can be achieved with conventional approaches, such as closure of the maxillary defect by microvascular free flap surgery or prosthetic obturation. Four patients with segmental maxillary defects that had been reconstructed with customized subperiosteal titanium maxillary implants (CSTMI) through virtual surgical planning (VSP), STL models and CAD/CAM titanium mesh were included. The smallest maxillary defect was 4.1 cm and the largest defect was 9.6 cm, with an average of 7.1 cm. The reconstructed maxillary vertical dimension ranged from 9.3 mm to 17.4 mm, with a mean of 13.17 mm. The transverse dimension of the maxilla at the crestal level was attempted to be reconstructed based on the pre-excision CT scan, and these measurements ranged from 6.5 mm in the premaxilla area to 14.6 mm at the posterior level. All patients were rehabilitated with a fixed prosthesis on subperiosteal implants with good esthetic and functional results. In conclusion, we believe that customized subperiosteal titanium maxillary implants (CSTMI) are a safe alternative for maxillary defects reconstruction, allowing for simultaneous dental rehabilitation while restoring midface projection. Nonetheless, prospective and randomized trials are required with long-term follow-up, to assess its long-term performance and safety.

Endoscopic-assisted approach in the treatment of subcondylar fractures: our experience / Abordaje endoscópico en el tratamiento de las fracturas subcondíleas: nuestra experiencia

Introduction: The management of subcondylar fractures has been very controversial in the maxillofacial literature. The open reduction and internal fixation (ORIF) technique has been considered by many authors the gold standard in selected cases. However, with the rise in endoscopic techniques in the craniomaxillofacial area, new boundaries and less invasive techniques are being explored. The endoscopic approach of subcondylar fractures has proved overall good and similar results to open approaches whilst reducing complications such as facial nerve injury. In this article we purpose to describe our experience with the endoscopic approach to subcondylar fractures. Patients and methods: We retrospectively analyzed 11 patients with subcondylar fractures treated at our department via an endoscopic approach. The number and type of plates used in each patient is recorded. Results and complications observed for all patients are described as well as functional outcomes in terms of mouth opening at 1 week, 3 months and 6 months postoperatively. Results: One patient presented with transient damage to the marginal and frontal branches of the facial nerve. 18.2 % of patients had their hardware removed due to pain or infection at the fracture site. No cases of salivary fistula or sialocele were found in this study. Mean mouth opening at one week postoperatively was 31.8 mm which increased to 37.8 mm at 6 months after surgery, meaning an increase of 18.86 % through the follow-up. Also, 18.2 % of patients presented with persistent deviation with mouth opening and one patient presented with postoperative persistent malocclusion that was treated with intermaxillary fixation and elastics. (AU)

Introducción: El manejo de las fracturas subcondíleas ha sido muy controvertido en la literatura maxilofacial. La técnica de reducción abierta y fijación interna (RAFI) ha sido considerada por muchos autores como el gold standard en casos seleccionados. Sin embargo, con el auge de las técnicas endoscópicas en el área craneomaxilofacial se han puesto en marcha técnicas menos invasivas. El abordaje endoscópico de las fracturas subcondíleas ha demostrado en general buenos resultados, similares a los abordajes abiertos, al mismo tiempo que reduce complicaciones como la lesión del nervio facial. En este artículo nos proponemos describir nuestra experiencia con el abordaje endoscópico de las fracturas subcondíleas. Pacientes y métodos: Analizamos retrospectivamente 11 pacientes con fracturas subcondíleas tratados en nuestro servicio mediante abordaje endoscópico. Se recoge el número y tipo de placas utilizadas en cada paciente. Se describen los resultados y las complicaciones observadas para todos los pacientes, así como los resultados funcionales en términos de apertura oral a la semana, 3 meses y 6 meses después de la intervención. Resultados: Un paciente presentó lesión transitoria en las ramas marginal y frontal del nervio facial. Al 18,2 % de los pacientes se les retiraron las placas, por dolor o infección. En este estudio no se encontraron casos de fístula salival o sialocele. La apertura oral media a la semana del postoperatorio fue de 31,8 mm y aumentó a 37,8 mm a los 6 meses de la cirugía, lo que supuso un aumento del 18,86 % durante el seguimiento. Además, el 18,2 % de los pacientes presentó desviación persistente con la apertura de la boca y un paciente presentó maloclusión persistente postoperatoria que fue tratada con bloqueo intermaxilar y elásticos. (AU)

Tuberculosis oral. Revisión de la literatura. A propósito de un caso / Oral tuberculosis. Review of the literature. A case report

La tuberculosis (TB) es una enfermedad granulomatosa crónica que afecta de forma primordial a los pulmones. La afectación de la cavidad oral es rara, lo que hace que sea infradiagnosticada e infratratada. Dicha afectación puede ser primaria o secundaria, siendo más común la afectación secundaria. Exponemos el caso de un varón fumador de 39 años que presenta una lesión ulcerada en mucosa yugal izquierda de 3 semanas de evolución. Se tomó biopsia con resultado de mucosa escamosa con ulceración e intensa inflamación crónica granulomatosa no necrotizante. Además, presentaba una lesión cavitada a nivel pulmonar. Escribimos este artículo con el fin de determinar la importancia de realizar un buen diagnóstico diferencial de las lesiones ulcerativas de la cavidad oral y recalcar el manejo multidisciplinar de esta patología. (AU)

Tuberculosis (TB) is a chronic granulomatous disease which affects the lungs in majority of the cases. Tuberculosis of the oral cavity may be overlooked in the differential diagnosis of oral lesions and can be misdiagnosed and managed incorrectly. Oral manifestations of TB are seen both in primary and secondary stages of the disease but are most commonly associated with secondary TB. A 39-year-old smoker man with an ulcerative oral lesion came to the emergency room. A partial incisional biopsy was performed, with the result of squamous mucosa with ulceration and intense chronic non-necrotizing granulomatous inflammation. In addition, he had a cavitated lesion in the lung. We write this article in order to determine the importance of making a good differential diagnosis of ulcerative lesions of the oral cavity and emphasize the multidisciplinary management of this pathology. (AU)

Medication related osteonecrosis of the jaws (MRONJ): Factors related to recurrence after treatment with surgery and platelet rich plasma (PRP) placement / Osteonecrosis de los maxilares relacionada con medicamentos (MRONJ): Factores relacionados con la recurrencia después del tratamiento con cirugía y colocación de plasma rico en plaquetas (PRP)

Background: Medication-related osteonecrosis of the jaws (MRONJ) is a well-known complication associatedwith antiresorptive and antiangiogenic therapies. The purpose of this study was to analyse if there is any predic-tive factor of recurrence after local debridement plus platelet rich plasma (PRP) placement in MRONJ patients.Material and Methods: Seventy MRONJ patients treated at the department of Oral and Maxillofacial Surgery inLa Paz Hospital (Madrid, Spain) were included in this retrospective study. All of them were treated surgicallyby local debridement and PRP placement. The observation period was between January 2012 and January 2019.Information regarding use, type, administration, and duration of therapy with BP/denosumab was recorded. Thefollow-up period ranged from 2-52 months. A descriptive analysis, a bivariate and a multivariate study were per-formed.Results: Most of the patients were women (82.9%) between 50-70 years old (64.3%), with a stage II disease(74.3%). The therapy lasted more than 12 months in 54.8% of them. Zoledronic acid was the main antiresorptiveused (44.3%), followed by oral administered BPs (29 patients, 41.4%) and denosumab (10 patients, 14.3%). Oste-oporosis (48.6%), breast cancer (30%) and multiple myeloma (11.4%) were the main diseases because the patientswere taking antirresorptives. 13 patients (18.6%) experienced recurrence. We found that breast cancer patients(p>0.0001), smokers (p>0.016), and administration of zoledronic acid (p>0.0001) were related to recurrence.After performing the multivariate model, we found that the only factor related to recurrence was smoking habit(Wald 3.837, p=0.05, OR 6.12). Conclusions: recurrence after local debridement plus PRP placement in our MRONJ series affected to 18.6% ofpatients. It seems to be more frequent in breast cancer patients, smokers, and after zoledronic acid administration.Smoking habit was the only independent factor related to recurrence in our series.(AU)

Intraosseous Venous Malformation of the Zygomatic Bone: Comparison between Virtual Surgical Planning and Standard Surgery with Review of the Literature.

Intraosseous venous malformations affecting the zygomatic bone are infrequent. Primary reconstruction is usually accomplished with calvarial grafts, although the use of virtual surgical planning, cutting guides and patient-specific implants (PSI) have had a major development in recent years. A retrospective study was designed and implemented in patients diagnosed with intraosseous venous malformation during 2006-2021, and a review of the scientific literature was also performed to clarify diagnostic terms. Eight patients were treated, differentiating two groups according to the technique: four patients were treated through standard surgery with resection and primary reconstruction of the defect with calvarial graft, and four patients underwent resection and primary reconstruction through virtual surgical planning (VSP), cutting guides, STL models developed with CAD-CAM technology and PSI (titanium or Polyether-ether-ketone). In the group treated with standard surgery, 75% of the patients developed sequelae or morbidity associated with this technique. The operation time ranged from 175 min to 210 min (average 188.7 min), the length of hospital ranged from 4 days to 6 days (average 4.75 days) and the postoperative CT scan showed a defect surface coverage of 79.75%. The aesthetic results were "excellent" in 25% of the patients, "good" in 50% and "poor" in 25%. In the VSP group, 25% presented sequelae associated with surgical treatment. The operation time ranged from 99 min to 143 min (average 121 min), the length of hospital stay ranged from 1 to 2 days (average of 1.75 days) and 75% of the patients reported "excellent" results. Postoperative CT scan showed 100% coverage of the defect surface in the VSP group. The multi-stage implementation of virtual surgical planning with cutting guides, STL models and patient-specific implants increases the reconstructive accuracy in the treatment of patients diagnosed with intraosseous venous malformation of the zygomatic bone, reducing sequelae, operation time and average hospital stay, providing a better cover of the defect, and improving the precision of the reconstruction and the aesthetic results compared to standard technique.

Clinical and Surgical Outcomes in Extensive Scalp Reconstruction after Oncologic Resection: A Comparison of Anterolateral Thigh, Latissimus Dorsi and Omental Free Flaps.

Microsurgical scalp reconstruction is indicated in patients with large scalp defects. The aim of this study was to compare the outcomes of scalp reconstruction in oncologic patients reconstructed with latissimus dorsi (LD), anterolateral thigh (ALT), and omental (OM) free flaps. Thirty oncologic patients underwent scalp reconstruction with LD (10), ALT (11), and OM (9) flaps. The length of the vascular pedicle, the operation time, the possibility of a two-team approach, the length of hospital stays, the complications, and the aesthetic results were evaluated. The OM flap was the flap with the shortest vascular pedicle length with a mean of 6.26 ± 0.16 cm, compared to the LD flap, which was 12.34 ± 0.55 cm and the ALT flap with 13.20 ± 0.26 cm (p < 0.05). The average time of surgery was 6.6 ± 0.14 h in patients reconstructed with OM, compared to the LD flap, which was 8.91 ± 0.32 h and the ALT flap with 7.53 ± 0.22 h (p < 0.05). A two-team approach was performed in all patients for OM flaps and ALT flaps, but only in two patients reconstructed with the LD flap (p < 0.001). In patients reconstructed with the OM flap, a very satisfactory or satisfactory result was reported in seven patients (77.8%). Eight patients reported a very unsatisfactory or unsatisfactory result with LD flap (80%) and 10 patients with ALT flap (90.9%) (p = 0.002). The mean hospital stay after surgery was not statistically significant (p > 0.05). As for complications, two patients reconstructed with OM flap, five LT flaps, and two ALT flaps developed complications, not statistically significant (p = 0.235). Omental flap, latissimus dorsi flap, and anterolateral thigh flap fulfill most of the characteristics for complex scalp reconstruction. The decision on which flap to use should be based on clinical aspects of the patients taking into account that the three flaps show similar rates of complications and length of hospital stay. Regarding the aesthetic outcome, OM flap or LD flap should be considered for reconstruction of extensive scalp defects.

Comparison of the outcomes of unilateral orbital fracture repair with and without surgical navigation system: our experience in La Paz University Hospital / Comparación de los resultados en cirugía de fractura de órbita unilateral con y sin sistema de navegación quirúrgica: experiencia en el Hospital Universitario La Paz

INTRODUCTION: Restoration of normal orbital volume and globe position following traumatic injury is often difficult. Intraoperative navigation has emerged as a tool to allow the visualization of the implant position intraoperatively, by means of the planification in the preoperative computed-tomographic scan (CT scan). OBJECTIVES: The aim of this study was to compare the postoperative changes in orbital volume between two groups of study: one group that underwent surgical intervention before the implementation of intraoperative navigation (control group), and other group of patients which had undergone surgery with the aid of a navigation system (Software iPlan CMF version 3.0.5, Brainlab®, Feldkirchen, Germany) (navigation group). Another endpoint of our study was to determine it the presurgical planification and intraoperative navigation aided to position the implant. For that purpose, we determined the implant position with respect to the orbital floor and medial orbital wall and compared it between both groups of study. As secondary endpoints, we compared the rate of postoperative outcomes and reintervention rate between both groups. MATERIALS AND METHODS: A retrospective cohort study was designed. We selected a total of 35 consecutive orbital operations for unilateral orbital fractures performed between 2015 and 2018 at the Department of Oral and Maxillofacial Surgery in La Paz Hospital (Madrid), Spain. We collected information regarding: demographic data, cause of the fracture, time elapsed between diagnosis and surgical treatment, symptoms at diagnosis (diplopia, globe projection, ocular motility impairment), radiological findings (affected wall, muscular entrapment, herniation of the periorbital structures), and outcomes after surgical treatment (diplopia, globe position, ocular motility impairment, reintervention). By means of the iPlan CMF software, the orbital volume was determined in the preoperativeand postoperative CT scan. The plate position was determined by measuring the distance between the plate and the orbital rim,the distance between the plate and the residual posterior intact bony ledge and the distance between the plate and the medial orbital wall. Measurements were performed automatically in the three planes of space, although we used the sagital plane to measure the distance between the plate and the orbital rim and between the plate and the residual posterior intact bony ledge. To measure the distance between the plate and the medial orbital wall we used the axial plane. RESULTS: After surgery, we observed that abnormal globe position was significatively less frequent in the navigation group than in the control group (p = 0.029). The reoperation rate was 11 % in the navigation group and 35% in the control group (p = 0.071). Mean orbital volume of the unaffected orbit was 29.32 ± 2.64 cm3 in the navigation group and 28.64 ± 2.68 cm3 in the control group. Mean orbital volume of the affected orbit was 34.19 ± 3.67 cm3 in the navigation group and 32.78 ± 3.09 cm3 in the control group. Mean reconstructed orbital volume was 29.47 ± 2.75 cm3 in the navigation group and 28.88 ± 3.72 cm3 in the control group. Mean volume reduction and the mean difference in volume between unaffected and reconstructed side did not show significative differences between both groups. The mean distance from plate to orbital floor at the residual posterior intact bony ledge showed significative differences (p = 0.001), being inferior in the navigation group. CONCLUSIONS: The use of intraoperative navigation in orbital fractures is effective in improving plate positioning in the residual posterior intact bony ledge of the floor of the orbit, reducing complications such as enophthalmos compared to conventional surgery. Furthermore, the use of intraoperative navigation seems to decrease the rate of reintervention compared to conventional surgery. The restoration of orbital volume seems to be well addressed by both methods

INTRODUCCIÓN: La restauración del volumen orbitario normal y la posición del globo ocular después de una fractura orbitaria puede ser difícil. La navegación intraoperatoria ha surgido como una herramienta que permite visualizar la posición del implante intraoperatoriamente mediante la planificación en la tomografía computarizada (TC) preoperatoria. OBJETIVOS: El objetivo de este estudio fue comparar los cambios posoperatorios en el volumen orbitario entre dos grupos de estudio: un grupo que se sometió a intervención quirúrgica antes de la implementación de la navegación intraoperatoria (grupo de control), y otro grupo de pacientes que habían sido intervenidos con la ayuda de un sistema de navegación (Software iPlan CMF versión 3.0.5, Brainlab®, Feldkirchen, Alemania) (grupo de navegación). Otro criterio de valoración de nuestro estudio fue determinar si la planificación prequirúrgica y la navegación intraoperatoria facilitó a la hora de colocar la malla orbitaria. Para ello, determinamos la posición de la malla con respecto al suelo orbitario y la pared orbitaria medial y la comparamos entre ambos grupos de estudio. Como criterios de valoración secundarios, comparamos los síntomas oculares posoperatorios y la tasa de reintervención entre ambos grupos. MATERIALES Y MÉTODOS: Se diseñó un estudio de cohortes retrospectivo. Seleccionamos un total de 35 pacientes intervenidos por fracturas orbitarias unilaterales entre 2015 y 2018 en el Servicio de Cirugía Oral y Maxilofacial del Hospital Universitario La Paz (Madrid), España. Se recogió información sobre: datos demográficos, causa de la fractura, tiempo transcurrido entre el diagnóstico y la cirugía, síntomas al diagnóstico (diplopía, proyección del globo ocular, alteración de la motilidad ocular), hallazgos radiológicos (pared afectada, atrapamiento muscular, herniación grasa), y síntomas posquirúrgicos (diplopía, posición del globo ocular, alteración de la motilidad ocular), así como necesidad de reintervención. Mediante el software iPlan CMF se determinó el volumen orbitario en el TC preoperatorio y posoperatorio. La posición de la malla se determinó midiendo la distancia entre la malla y el borde orbitario, la distancia entre la malla y el reborde óseo intacto posterior residual y la distancia entre la malla y la pared orbitaria medial. Las mediciones se realizaron de forma automática en los tres planos del espacio, aunque utilizamos el plano sagital para medir la distancia entre la malla y el borde orbitario y entre la malla y el reborde óseo posterior. Para medir la distancia entre la malla y la pared orbitaria medial utilizamos el plano axial. RESULTADOS: Después de la cirugía, observamos que la posición anormal del globo ocular fue significativamente menos frecuente en el grupo de navegación que en el grupo control (p = 0,029). La tasa de reintervención fue del 11 % en el grupo de navegación y del 35 % en el grupo de control. El volumen orbitario medio de la órbita sana fue 29,32 ± 2,64 cm3 en el grupo de navegación y 28,64 ± 2,68 cm3 en el grupo control. El volumen orbitario medio de la órbita afectada fue 34,19 ± 3,67 cm3 en el grupo de navegación y 32,78 ± 3,09 cm3 en el grupo control. El volumen orbitario reconstruido medio fue de 29,47 ± 2,75 cm3 en el grupo de navegación y 28,88 ± 3,72 cm3 en el grupo control. La reducción media del volumen y la diferencia media de volumen entre el lado sano y el reconstruido no mostraron diferencias significativas entre ambos grupos. La distancia media de la placa al suelo orbitario en el reborde óseo posterior residual mostró diferencias significativas (p = 0,001), siendo inferior en el grupo de navegación. CONCLUSIONES: El uso de la navegación intraoperatoria en fracturas orbitarias es eficaz para mejorar el posicionamiento de la placa en el reborde óseo residual posterior del suelo orbitario, reduciendo complicaciones como el enoftalmos, en comparación con la cirugía convencional. Además, el uso de la navegación intraoperatoria parece disminuir la tasa de reintervención en comparación con la cirugía convencional. La restauración del volumen orbitario parece ser adecuada a través de ambos métodos

A novel mobile application to determine mandibular and tongue laterality discrimination in women with chronic temporomandibular disorder

BACKGROUND: Chronic pain from temporomandibular disorders (TMDs) is caused by a somatosensory disturbance due to sustained activation of central nervous system nociceptive pathways, which can induce changes in neuroplasticity in the thalamus, basal ganglia and limbic system, as well as disturbances in the somatosensory, prefrontal and orbitofrontal cortex and cognitive impairment. The main objective of this study was to determine the discrimination capacity of mandibular and tongue laterality between women with chronic TMDs and asymptomatic women. MATERIAL AND METHODS: This descriptive-comparative study examined 2 groups with a total of 30 women. All participants were between the ages of 23 and 66 years and were assigned to the chronic TMD group or the asymptomatic group according to the inclusion criteria. We employed a mobile application developed specifically for this study to measure the accuracy and reaction time (RT) of mandibular and tongue laterality discrimination. RESULTS: The chronic TMD group had a lower success rate in laterality discrimination (mean mandibular accuracy of 40% and mean tongue accuracy of 67%) than the asymptomatic group (mean mandibular accuracy of 61% and mean tongue accuracy of 90%). These results showed statistically significant differences between the groups for mandibular laterality discrimination (d, 1.14; p < 0.01) and tongue laterality discrimination (d, 0.79; p = 0.03). The asymptomatic group had faster RTs than the chronic TMD group. The data revealed statistically significant differences for the right mandibular RT (d, 0.89; p=0.02) and right tongue RT (d, 0.83; p = 0.03). However, there were no significant differences for left mandibular and left tongue RT. CONCLUSIONS: We found that the women with chronic TMDs had a lower success rate and slower RTs in the discrimination of mandibular laterality when compared with the asymptomatic women

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Traqueotomías en pacientes críticos durante la pandemia por COVID-19. Estudio preliminar de nuestra experiencia en el Hospital Universitario La Paz de Madrid / Tracheotomies in critical patients during the COVID-19 pandemia. Preliminary study of our experiences at La Paz University Hospital of Madrid

El brote epidémico causado por el virus SARS-CoV-2 se encuentra plenamente activo en España. Alrededor del 10-15 % de los pacientes ingresados precisan cuidados en unidades de críticos, siendo intubados de forma prolongada y precisando la realización de traqueotomías. Se realiza un estudio observacional de las traqueotomías realizadas por nuestro Servicio de Cirugía Oral y Maxilofacial a pacientes COVID-19 de unidades de cuidados intensivos realizadas entre el 17 de marzo y el 17 de abril de 2020. El estudio analiza aspectos epidemiológicos y clínicos de los pacientes, el tipo de técnica quirúrgica empleada, el tiempo quirúrgico, el tipo de cánula empleada, las complicaciones postquirúrgicas y el seguimiento clínico de los pacientes. Un total de 22 pacientes fueron sometidos a traquetomía reglada abierta. Fueron dieciocho hombres y cuatro mujeres de edades entre 40 y 77 años (64,9 años de media). En todos los casos la realización de traqueotomía fue como consecuencia del proceso pulmonar por la neumonia bilateral COVID-19. Dos pacientes presentaron un neumotórax en el postoperatorio inmediato como complicación, un paciente falleció durante la realización del procedimiento y otro tras su llegada a la Unidad de Cuidados Intensivos tras la realización de la traqueotomía. A pesar de que la traqueotomía es una técnica quirúrgica reglada, las características especiales de los pacientes COVID-19 hacen de este procedimiento una situación crítica por la inestabilidad pulmonar y la rápida desaturación del paciente. Todo ello obliga a la realización del procedimiento por facultativos con experiencia para disminuir el tiempo quirúrgico y poder enfrentarse a cualquier eventualidad

The outbreak caused by the SARS-CoV-2 virus is currently very active in Spain. Many infected people still require to be hospitalized. Around 10-15 % of hospitalized patients require intensive care, where they are intubated for a prolonged period, needing tracheotomies some weeks after the intubation. We will be conducting an observational study of the tracheotomies performed by our oral and maxillofacial Department to COVID-19 patients on intensive care units between March 17th and April 17th, 2020. This study will be analyzing the patients' epidemiological and clinical aspects, surgical technique employed, surgical time, type of cannula used, postoperative complications and the patients' clinical monitoring. A total of 22 patients underwent open elective tracheotomy. There were twenty-two males and three females aged between 40 and 77 (mean: 64,9 years-old). In all cases tracheotomy was carried out due to pulmonary process caused by COVID-19 bilateral pneumonia. Two patients presented pneumothorax in the immediate postoperatory care as a complication, one perished during the procedure and another did so after arriving to the Intensive Care Unit after the tracheotomy surgery. Even though tracheotomy is a ruled surgical technique, the special characteristics of COVID-19 patients make of this procedure a critical situation, mainly due to lung instability and quick desaturation of the patients. This requires the surgery to be carried out by experienced physicians in order to reduce operative time and to be able to react to any eventualities that may arise