Knowledge of Physical Education Students about Tooth Avulsion Before and After Receiving an Informative Leaflet

Abstract Objective: To evaluate the knowledge of Physical Education students about tooth avulsion (TA) in both dentitions before and after receiving an informative leaflet (IL). Material and Methods: The questionnaire contained information about TA in dentition and its management and was applied to the Physical Education students before and after reading an IL. Results: A total of 118 students, 96.61%, attended a first aid course, and 17.80% received information about TA. Most students (88.98%) never had an experience with TA, and 90.68% considered its management important. The other questions, before and after reading the IL, respectively, were: would not perform deciduous tooth replantation (42%; 88%); knew how to handle the avulsed permanent tooth (APT) (38%; 92%); knew how to clean the APT (50%; 99%); knew that permanent tooth replantation (PTR) must be immediate (15%; 95%); knew the ideal time to seek for the dentist right after TA without performing PTR (6%; 83%); knew how to store APT (31%; 97%). Conclusion: The knowledge of Physical Education students in this research revealed a limited understanding of dental tooth avulsion. After receiving an informative leaflet, the students showed a significant improvement in knowledge about traumatic avulsion management, including tooth replantation and proper actions.

Evaluación de las Lesiones Orofaciales y Traumatismos Dentales en Deportes de Combate y no Combate

Los deportes de combate conllevan un alto riesgo de padecer traumatismos dentoalveolares. Este estudio se evaluó la incidencia de traumatismos y lesiones orofaciales relacionadas con los deportes de combate, junto con la evaluación de las actitudes y hábitos de los deportistas respecto al uso de protectores bucales. Este estudio se realizó mediante sistema de encuestas digitales distribuidas en diferentes clubes deportivos donde se practican deportes de combate y no combate. Los deportistas de combate tienen más probabilidad sufrir alguna lesión orofacial que los no deportistas de combate. El sexo masculino y la experiencia son factores predisponentes en la aparición de traumatismos y lesiones orofaciales, siendo las laceraciones de tejidos blandos las más frecuentes. Los deportistas de combate llevan más protectores bucales que los deportistas en general, siendo el protector tipo II el más usado. Los deportistas que no llevan protectores no consideran que sea necesario. En caso de sufrir una avulsión dental, la mayoría de los participantes consideran que es posible reimplantar un diente avulsionado.

Combat sports carry a high risk of suffering dentoalveolar trauma. This study evaluated the incidence of dentoalveolar lesions related to combat sports, together with the evaluation of athletes' attitudes and habits regarding the use of mouth guards. This study was carried out using a digital survey system distributed in different sports clubs where combat and non-combat sports are practiced. Combat athletes are more likely to suffer a dentoalveolar lesion than non-combat athletes. Male sex and experience are predisposing factors in the appearance of dentoalveolar lesions, with soft tissue lacerations being the most frequent. Combat athletes wear more mouth guards than athletes in general, with the type II protector being the most used. Athletes who do not wear protectors do not consider it necessary. In case of suffering a dental avulsion, most of the participants consider that it is possible to reimplant an avulsed tooth.

Avulsion Fracture of the Tibial Tuberosity in an Adolescent: Case Report / Fratura por avulsão da tuberosidade da tíbia em adolescente: Relato de caso

Abstract The present study reports a rare case of avulsion fracture of the tibial tuberosity in an adolescent. A 14-year-old male patient sprained his left knee during a soccer match. At the first emergency-room visit, he presented pain in his left knee, 2 +/4+ edema, and inability to walk and flex the affected knee, but no neurovascular changes or signs of compartment syndrome. Radiographs revealed a physeal fracture at the left proximal tibia, classified by Ogden, Tross and Murphy, and modified by Ryu and Debenham, as type IV, and complemented by Aerts et al. as type IV-B. Immobilization was performed with a plaster cast from the inguinal to malleolar regions, followed by analgesia. The patient was operated on the next day, when open reduction and internal fixation using 4.5-mm cannulated screws were performed. The patient was discharged one day after surgery, with plaster cast immobilization and load restraint for four weeks, and bone consolidation was radiologically confirmed three months after the procedure. The patient evolved with a range of motion similar to that of the contralateral limb, no length discrepancy in the lower limbs, and no complaints after one year of follow-up.

Resumo O presente estudo tem como objetivo relatar um caso raro de fratura por avulsão da tuberosidade da tíbia em adolescente. Um paciente de 14 anos, do sexo masculino, sofreu entorse de joelho esquerdo durante partida de futebol. No primeiro atendimento em pronto-socorro, ele apresentava dor no joelho esquerdo, edema 2 +/4 + , incapacidade de deambulação e de flexo-extensão do joelho acometido, sem alterações neurovasculares ou sinais de síndrome compartimental. Nas radiografias, identificou-se fratura fisária na tíbia proximal esquerda, classificada por Ogden, Tross e Murphy, com modificação por Ryu e Debenham, como tipo IV, e complementada por Aerts et al. como tipo IV-B. Foi realizada imobilização com tala gessada inguino-maleolar e analgesia, e o paciente submetido a cirurgia no dia seguinte, com redução aberta e fixação interna utilizando parafusos canulados 4,5 mm. O paciente recebeu alta no dia seguinte à cirurgia, sendo mantida a imobilização com tala gessada e a restrição de carga por quatro semanas, e apresentou consolidação óssea confirmada por radiografia com três meses do pós-operatório. O paciente evoluiu sem discrepância de comprimento dos membros inferiores, arco de movimento igual ao do membro contralateral, e sem queixas no seguimento de um ano.

Conhecimento de acadêmicos de Odontologia acerca da avulsão dentária / Knowledge of dental students about tooth avulsion

Objetivo: verificar o conhecimento de acadêmicos de Odontologia de uma instituição de ensino superior da Paraíba acerca da avulsão dentária. Métodos: foi realizado um estudo transversal, no qual 64 acadêmicos responderam um formulário com perguntas objetivas relativas a dados sociodemográficos, período de formação do curso e conhecimento e condutas em casos de avulsão dentária. Foi realizada análise descritiva de frequência absoluta e relativa dos dados (SPSS, v. 20.0). Resultados: a maioria dos acadêmicos recebeu informações sobre avulsão dentária em aulas ministradas no curso (86%) e indicaria a irrigação com soro fisiológico seguida de reimplante quando da ocorrência do trauma há menos de uma hora (64,1%) e há mais de uma hora (43,8%). O tratamento endodôntico foi indicado, independentemente do tempo do dente fora do alvéolo, por 34,4% da amostra. A contenção rígida foi a mais indicada para o dente reimplantado (48,4%) e seu tempo mínimo de proservação radiográfica respondido pela maioria dos pesquisados foi de 6 meses (48,4%). Conclusões: apesar de a maioria dos acadêmicos ter recebido informações acerca da temática, o conhecimento foi considerado insuficiente em relação a condutas referentes ao reimplante dentário, indicação do tratamento endodôntico, tipo de contenção e tempo de proservação.

Objective: to verify the knowledge of dental students from a Higher Education Institution of Paraíba about dental avulsion. Methods: a cross-sectional study was carried out, in which 64 students answered a form with objective questions regarding sociodemographic data, course period, knowledge and conduct in cases of tooth avulsion. Descriptive analysis of absolute and relative frequency of data was performed (SPSS, v. 20.0). Results: most students received information about dental avulsion during the graduation classes (86%) and would indicate irrigation with saline solution followed by reimplantation when the trauma occurred less than one hour (64.1%) and more than one hour (43.8%). Endodontic treatment was indicated, regardless of the time the tooth was out of the dental socket, according 34.4% of the sample. Rigid retention was the most indicated for the reimplanted tooth (48.4%) and six months was the minimum radiographic follow-up time answered by most students (48.4%). Conclusions: although most students have received information about the topic, the knowledge was considered insufficient in relation to some aspects of the protocols recommended for emergency care for dental avulsion, with emphasis on behaviors related to dental reimplantation, indication of endodontic treatment, type of containment and follow-up.

Epidemiology and severity of traumatic dental injuries in permanent teeth: A 20-year retrospective study

Abstract This study aimed to assess the traumatic dental injuries (TDIs) in permanent dentition among patients who attended at the outpatient clinic of a Brazilian dental school, during the last 20 years, and to investigate factors associated with the severity of these injuries. Clinical records of patients who attended a specialized center for dental trauma care in Brazil presenting at least one TDI in a permanent tooth, between the years 2000 and 2019, were reviewed. The data recorded were sex, age, affected arch, etiology, number, and type of the teeth affected, and classification and severity of the TDIs. The diagnosis and classification of the TDIs were based on the guidelines of the International Association of Dental Traumatology (IADT). The severity of each patient's injuries was defined as mild, moderate, or severe. Descriptive statistics, chi-square and multinomial regression analyses were used to evaluate the results. The significance level was set at 5%. A total of 837 clinical records were included, totaling 2357 teeth. Males were more prevalent than females. The patients' age ranged from 5 to 71 years. The most common traumas were avulsion (n=512) and uncomplicated enamel-dentin fracture (n=488). Univariate analyses showed that there was a statistically significant association between age group (p=0.004), etiology (p=0.000) and number of teeth affected (p=0.000) with severity of dental trauma. In conclusion, TDIs that occurred in Piracicaba and region are epidemiologically similar to those found worldwide, and that more severe injuries are related to age range, etiology and number of teeth affected.

Resumo Esse estudo objetivou avaliar as injúrias dentárias traumáticas (IDTs) na dentição permanente entre os pacientes que compareceram ao ambulatório de uma faculdade de odontologia brasileira, durante os últimos 20 anos, e investigar fatores associados à severidade dessas lesões. Os registros clínicos dos pacientes que compareceram a um centro especializado de atendimento em traumatismo dentário no Brasil apresentando pelo menos uma IDT em dente permanente, entre os anos de 2000 e 2019, foram revisados. Os dados registrados foram sexo, idade, arco dental afetado, etiologia, número e tipo dos dentes afetados, e classificação e severidade das IDTs. O diagnóstico e a classificação das IDTs foram baseados nas diretrizes da Associação Internacional de Traumatologia Dentária (AITD). A gravidade das lesões de cada paciente foi definida como leve, moderada ou severa. Estatísticas descritivas, teste qui-quadrado e análises de regressão multinomial foram usadas para avaliar os resultados. O nível de significância foi fixado em 5%. Um total de 837 registros clínicos foi incluído, totalizando 2357 dentes. O sexo masculino foi mais prevalente que o feminino. A idade dos pacientes variou de 5 a 71 anos. Os traumas mais comuns foram avulsão (n=512) e fratura não-complicada do esmalte-dentina (n=488). As análises univariadas mostraram que houve associação estatisticamente significativa entre a faixa etária (p=0,004), etiologia (p=0,000) e número de dentes afetados (p=0,000) com a gravidade do traumatismo dentário. Em conclusão, as IDTs que ocorreram em Piracicaba e região são epidemiologicamente semelhantes aos encontrados em todo o mundo, e que lesões mais graves estão relacionadas à faixa etária, etiologia e número de dentes afetados.

Retrospective analysis of survival of avulsed and replanted permanent teeth according to 2012 or 2020 IADT Guidelines

Abstract This study aimed to compare the survival of replanted teeth that followed the 2012 or the 2020 International Association of Dental Traumatology (IADT) guidelines. Sixty-two permanent replanted teeth were retrospectively assessed (IADT 2012, n = 45; IADT 2020, n = 17). Five years after replantation (from January 2017 to December 2021), clinical and radiographic examinations were performed. A significance level of 95% was considered to evaluate the outcomes. Thirty-one teeth (50.0%) remained in their sockets and 31 (50.0%) were lost due to external root resorption. Of the 25 (40.3%) teeth replanted within one hour, 16 (64.0%) remained in their sockets, and 9 (36.0%) were lost. Twenty-two (71.0%) of all 31 lost teeth had an extra-alveolar time of more than one hour. Twelve teeth remained in their sockets without resorption: 8 (66.7%) were replanted within one hour, 2 (16.7%) followed the 2012 IADT, and 2 (16.7%) the 2020 IADT guidelines for late replantation. There was a significant difference (p <0.05) in the extra-alveolar time (< one hour), but without difference between the guidelines in late replantation (p > 0.05). Replanted teeth following both, 2012 or 2020 IADT guidelines, have similar clinical outcomes. The extra-alveolar time of less than one hour was demonstrated to be important to keep the permanent tooth in its socket.

Resumo Este estudo teve como objetivo comparar a sobrevida, por cinco anos, de dentes reimplantados que seguiram as diretrizes de 2012 ou 2020 da International Association of Dental Traumatology (IADT). Sessenta e dois dentes permanentes reimplantados foram avaliados retrospectivamente (IADT 2012, n = 45; IADT 2020, n = 17). Cinco anos após o reimplante, foram realizados exames clínicos e radiográficos. Foi considerado um nível de significância de 95% para avaliar os desfechos. Trinta e um dentes (50,0%) permaneceram em seus alvéolos e 31 (50,0%) foram perdidos por reabsorção radicular externa. Dos 25 (40,3%) dentes reimplantados em uma hora, 16 (64,0%) permaneceram em seus alvéolos e 9 (36,0%) foram perdidos. Vinte e dois (71,0%) de todos os 31 dentes perdidos tiveram um tempo extra-alveolar superior a uma hora. Doze dentes permaneceram em seus alvéolos sem reabsorção: 8 (66,7%) foram reimplantados em uma hora, 2 (16,7%) seguiram a IADT de 2012 e 2 (16,7%) as diretrizes da IADT de 2020 para reimplante tardio. Houve diferença significativa (p<0,05) no tempo extra-alveolar (< uma hora), mas sem diferença entre as diretrizes no reimplante tardio (p > 0,05). Dentes reimplantados seguindo as diretrizes de 2012 ou 2020 da IADT, tiveram taxas de sucesso semelhantes. O tempo extra-alveolar inferior a uma hora demonstrou ser importante para manter o dente permanente em seu alvéolo.

Effectiveness on treatment of metacarpal avulsion fracture with Kirschner wire buckling combined with bone fixation / 中国修复重建外科杂志

OBJECTIVE@#To summarize the effectiveness of Kirschner wire buckling combined with bone fixation in the treatment of metacarpal avulsion fracture.@*METHODS@#The clinical data of 35 patients of metacarpal avulsion fracture admitted between March 2017 and June 2022 were retrospectively analyzed. There were 22 males and 13 females; the age ranged from 20 to 55 years, with an average of 31.6 years. There were 17 cases of the second metacarpal avulsion fracture, 6 cases of the fourth metacarpal avulsion fracture, and 12 cases of the fifth metacarpal avulsion fracture. The causes of injury included 21 cases of strangulation, 8 cases of sprain, and 6 cases of sports injury. X-ray film examination showed that the size of the avulsion fracture of metacarpal bone ranged from 0.30 cm×0.20 cm to 0.55 cm×0.45 cm. The total active motion (TAM) of the injured finger before operation was (154.00±17.38)°. The time from injury to operation was 3-10 days, with an average of 5.8 days. Follow-up regularly after operation, X-ray film and CT examination were performed to evaluate fracture healing and TAM of injured finger was measured. The finger function was evaluated by the trial standard of upper limb function evaluation of Hand Surgery Society of Chinese Medical Association.@*RESULTS@#All the incisions healed by first intention. All 35 patients were followed up 9-36 months, with an average of 28 months. All metacarpal avulsion fractures achieved bony healing, and the healing time was 4-6 weeks, with an average of 4.8 weeks. The metacarpophalangeal joint of the patient was stable, without stiffness, and the flexion and extension activities were good. At last follow-up, the TAM of the injured finger reached (261.88±6.23)°, which was significantly different from that before operation ( t=-35.351, P<0.001). The finger function was evaluated according to the trial standard of upper limb function evaluation of the Society of Hand Surgery of Chinese Medical Association, and 33 cases were excellent and 2 cases were good, with an excellent and good rate of 100%.@*CONCLUSION@#The treatment of metacarpal avulsion fracture with Kirschner wire buckling combined with bone fixation has the advantages of less trauma, firm fixation, and less interference to the soft tissue around metacarpophalangeal joints, which is a good alternative method for the metacarpal avulsion fracture.

Comparison of posterolateral approach and combined approach in treatment of Mason type 2B posterior malleolar fracture / 中国修复重建外科杂志

OBJECTIVE@#To compare the effectiveness between the posterolateral approach and the posterolateral combined posteromedial approaches in the treatment of Mason type 2B posterior malleolar fracture.@*METHODS@#A retrospective analysis was performed on the clinical data of 79 patients with posterior ankle fracture who met the selection criteria between January 2015 and January 2022. There were 62 cases of Mason 2B Pilon subtype and 17 cases of avulsion subtype. Among Mason 2B Pilon subtype patients, 35 were treated with posterolateral approach (group A), 27 patients were treated with combined approach (group B). There was no significant difference in gender, age, injured side, cause of injury, time from injury to operation, preoperative hospital stay, preoperative visualanalogue scale (VAS) score, and intraoperative internal fixation between the two groups ( P>0.05). All patients with Mason 2B avulsion subtype were treated by posterolateral approach, including 7 males and 10 females, aged from 25 to 68 years, with an average of 46.1 years. The operation time, intraoperative blood loss, postoperative hospital stay, and complications were recorded. The reduction quality was evaluated by Ovadia deals radiographic score, and the ankle function and pain were evaluated by VAS score, American Orthopaedic Foot and Ankle Society (AOFAS) score, and ankle range of motion.@*RESULTS@#Mason 2B Pilon subtype: There was no significant difference in operation time, intraoperative blood loss, postoperative hospital stay, and follow-up time between the two groups ( P>0.05). The radiological evaluation of Ovadia deals in group A was significantly worse than that in group B ( P<0.05). The VAS score in the two groups significantly improved at each time point after operation, and the VAS score and AOFAS score further improved with the extension of time after operation, and the differences were significant ( P<0.05). Except that the AOFAS score of group A was significantly lower than that of group B at last follow-up ( P<0.05), there was no significant difference in VAS score and AOFAS score between the two groups at other time points ( P>0.05). At last follow-up, the ankle range of motion in group A was significantly less than that in group B ( P<0.05). There was no significant difference in the incidence of sural nerve injury, deep tissue infection, limitation of toe movement, and traumatic ankle arthritis between the two groups ( P>0.05). Mason 2B avulsion subtype: The operation time was (119.47±20.61) minutes and the intraoperative blood loss was 50 (35, 55) mL. Seventeen patients were followed up 13-25 months, with an average of 18 months. The Ovadia deals score was excellent in 10 cases, good in 6 cases, and poor in 1 case at 1 week after operation, and the excellent and good rate was 94.1%. All fractures healed in 8-18 weeks with an average of 12.35 weeks. There were 1 case of sural nerve injury and 3 cases of traumatic ankle arthritis after operation. No deep tissue infection or limitation of toe movement occurred. The VAS score decreased significantly and AOFAS score increased significantly with time, and the differences were significant between different time points before and after operation ( P<0.05). The ankle range of motion at last follow-up was (56.71±2.47)°.@*CONCLUSION@#Compared with the posterolateral approach, the combined approach is a better choice for the treatment of Mason 2B Pilon subtype. If the posteromedial bone block does not affect the reduction of the medial malleolus, the posterolateral approach can achieve good effectiveness for Mason 2B avulsion subtype.

Treatment of tibial insertion avulsion fracture of anterior cruciate ligament involving anterior root of lateral meniscus with multi-point fixation with anchor and suture / 中国修复重建外科杂志

OBJECTIVE@#To investigate the effectiveness of arthroscopic multi-point fixation with anchor and suture in the treatment of tibial insertion avulsion fracture of anterior cruciate ligament (ACL) involving the anterior root of lateral meniscus (LM).@*METHODS@#A retrospective analysis was conducted on the clinical data of 28 patients with tibial insertion avulsion fracture of ACL involving the anterior root of LM who were treated with arthroscopic multi-point fixation with anchor and suture between October 2017 and January 2023. There were 12 males and 16 females with the mean age of 26 years (range, 13-57 years). There were 20 cases of sports injury and 8 cases of traffic accident injury. In 2 cases of old fracture, the time from injury to operation was 45 days and 90 days, respectively; in 26 cases of fresh fracture, the time from injury to operation was 3-20 days (mean, 6.7 days). According to the Meyers-McKeever classification, there were 4 cases of type Ⅱ, 11 cases of type Ⅲ, and 13 cases of type Ⅳ. The preoperative Lysholm knee function score was 42.1±9.0, the International Knee Documentation Committee (IKDC) score was 40.0±7.3, and the Tegner score was 0.7±0.7.@*RESULTS@#All operations were successfully completed, and the incisions healed by first intention. All the 28 patients were followed up 5-60 months (mean, 20.4 months). During the follow-up, there was nocomplication such as infection, vascular or nerve injury, loosening or breakage of internal fixator, or stiffness of knee joint. Postoperative X-ray films showed satisfactory fracture reduction and firm fixation. All fractures healed clinically, and the healing time was 8-16 weeks (mean, 10.3 weeks). At last follow-up, Lachman test and anterior drawer test were negative. At last follow-up, Lysholm knee function score was 92.4±5.5, IKDC score was 91.6±4.4, and Tegner score was 5.2±1.1, which significantly improved when compared with preoperative scores ( t=-22.899, P<0.001; t=-29.870, P<0.001; t=-19.979, P<0.001).@*CONCLUSION@#Multi-point fixation with anchor and suture in the treatment of tibial insertion avulsion fracture of ACL involving the anterior root of LM can not only fix the LM, but also effectively reduce and fix the avulsion fracture, which can obtain good effectiveness.

The impact of the COVID-19 pandemic on dental trauma attendance: a systematic review and meta-analysis

Abstract This systematic review and meta-analysis aimed to analyze the impact of the COVID-19 pandemic on dental trauma patient attendance. The study was registered in the PROSPERO system, using the CRD42021288398 protocol. Searching was performed in PubMed, Scopus, Web of Science, Embase, Lilacs, and OpenGrey databases, using the following keywords: "Tooth injuries," "Dental trauma," "Traumatic Dental injury," and "COVID-19". We included observational studies evaluating dental trauma in the context of the COVID-19 pandemic. Quality assessment was performed using the Joanna Briggs Institute Critical Appraisal Checklist for Cross-Sectional Studies. Meta-analysis was performed in RevMan 5.4 software with Odds Ratios as a pooled measure of effect, with a 95% confidence interval, and using random-effects modeling. After applying the eligibility criteria, 32 studies were included for qualitative analysis, in which 10 were used to assess the frequency of dental trauma diagnoses in dental emergencies. Despite the decrease of visits during COVID-19, the analysis revealed no difference between the pandemic and pre-pandemic periods. Regarding the type of dental trauma, two of the studies revealed no differences for the periods before and during the pandemic. This study revealed that the COVID-19 pandemic has not impacted the frequency or type of dental trauma compared to previous periods.

Replantation of severed midfoot with pedicled perforator flap around ankle for repair traumatic defect: Report of 4 cases / 中华显微外科杂志

Objective:To discuss the pedicled perforator flap around ankle in complicated replantation of severed traumatic midfoot.Methods:From May 2017 to December 2020, a total of 4 patients with severed midfoot combined with severely traumatic soft tissue defects were treated in the Department of Micro-orthopaedics, The Second Affiliated Hospital of Luohe Medical Collage. The patients were all males and aged from 22 to 53 (mean, 44) years old. Two patients had left foot injured and 2 in right foot. Causes of injuries: One patient was injured by strangulation of a corn harvester belt, and 3 were crushed by a heavy steel bar. Three patients had the severed sites at the level of intertarsal joint and 1 at the base of metatarsus. The time from injury to admission was 2.0-5.0(mean, 3.5) hours. The severed feet were replanted by anterograde method. Pedicled perforator flaps around ankle were used to repair the soft tissue defects of feet in emergency surgery or post first-stage surgery. The sizes of the flaps were 7.5 cm×8.0 cm-9.0 cm×19.0 cm. Scheduled follow-ups were arranged at outpatient clinic or by online reviews. Appearance, texture, colour, blood supply and sensory-motor function of the replanted feet and flaps were observed. The function of the foot and ankle was evaluated according to the American Orthopaedic Foot Ankle Association (AOFAS).Results:All 4 patients engaged follow-ups lasted for 13-36(mean, 19.5) months. Three replantations survived after surgery. In the other case, a chronic necrosis of the broken foot was caused by skin necrosis, wound infection, and vascular embolism. And then the necrotic forefoot was released, and the wound was later repaired with a flap based medial supramalleolar branches. A total of 5 flaps in 4 patients survived. All flaps were in good appearance with good texture and colour. All flaps healed primarily, and all skin grafts survived. All of the 4 patients could walked without assistance. Sensation restored to S 3. The patient with a failed replantation had left with a mild claudication. According to AOFAS, 2 patients were in excellent, 1 in good and 1 in fair at the last follow-up. Conclusion:Replantation of severed midfoot with an early application of pedicled perforator flap around ankle for reconstruction of severely traumatic defect is an effective and feasible treatment strategy.

Application of self-made negative pressure suction in the treatment of auricle subluxation and avulsion injury / 中国医师进修杂志

Objective:To explore the effect of self-made negative pressure suction in auricle subluxation and avulsion injury.Methods:The clinical data of 7 patients with auricle subluxation and avulsion injury from January 2017 to February 2022 in the First People′s Hospital of Lianyungang City were retrospectively analyzed. The 7 patients were treated with self-made simple negative pressure drainage device for negative pressure suction after suture.Results:Among the 7 patients, 1 patient suffered from severe contusion and local skin necrosis, and the scar healed after local application of erythromycin eye ointment, while the other patients healed in the first stage without obvious auricular deformity.Conclusions:The negative pressure drainage is the key factor to ensure the blood supply and shape of patients with auricle subluxation and avulsion injury. The application of self-made negative pressure drainage in the treatment of subtotal auricle avulsion injury has the advantages of simple operation, improved survival rate of auricle and improved satisfactory auricle shape.

Bilateral Tibial Tuberosity Periosteal Sleeve Fracture in an Adolescent: A Case Report

@#Tibial tuberosity avulsion fracture is a rare injury, and bilateral occurrence is more uncommon. Periosteal sleeve fracture is a unique fracture pattern which was first described in the lower pole of patella in children. We are reporting a rare case of bilateral tibial tuberosity sleeve fracture in a teenage boy which occurred while sprinting. The patient underwent open reduction, pull through suture fixation of the bilateral tibial tuberosity and screw fixation of left tibial tuberosity. Post-operative rehabilitation included gradual increment of range of motion with hinged brace and quadriceps muscle strengthening. Close follow-up was done to monitor the progression of his recovery. At six months follow-up, the patient recovered well. Both knees had full range of motion with an intact extensor mechanism.

Diagnosis and treatment strategy of penoscrotal avulsion injury based on AAST penoscrotal injury grade / 现代泌尿外科杂志

【Objective】 To explore the emergency treatment of penoscrotal avulsion injury based on the American Association for Surgery and Trauma (AAST) penoscrotal injury grade. 【Methods】 Data of 30 patients with penoscrotal avulsion injury treated in our hospital with in-situ suture, skin grafting or skin flap during Oct.2003 and Dec.2017 were reviewed. 【Results】 Among the 30 patients, 29 received emergency surgery, including in-situ suturein 15 grade Ⅰ-Ⅲ cases, skin graft in 8 grade Ⅳ-Ⅴ cases, and skin flap in 6 cases;1 case received delayed operation due to wound infection on admission. In the perioperative period,25 cases had more than 90% wound healing, 3 cases had 70% wound healing after wound dressing change, and 2 cases had complete necrosis. Second-stage skin graft yielded satisfactory penoscrotal appearance. 【Conclusion】 According to the specific conditions of patients, reasonable surgical methods can be selected. For grade Ⅰ-Ⅲ patients, in-situ suture can be used, while for grade Ⅳ-Ⅴ patients, wound condition, age, fertility and other factors should be taken into consideration so as to preserve the function of testis to the maximum extent.

Efficacy of laparoscopic bladder muscle flap ureteroplasty in the treatment of longsegment injury in the middle and lower ureter: a report of 6 cases / 现代泌尿外科杂志

【Objective】 To explore the feasibility and efficacy of laparoscopic bladder muscle flap ureteroplasty in the treatment of long-segment injury in the middle and lower ureter and to summarize the clinical experience. 【Methods】 The clinical data of 6 patients treated in our hospital during Oct.2018 and Aug.2021 were retrospectively analyzed. Four of them had long-segment ureteral mucosal cuff-like avulsion during ureteroscopic lithotripsy and could not undergo end-to-end ureteral anastomosis or reimplantation, and then laparoscopic bladder muscle flap ureteroplasty plus lumbaris major fixation of the bladder was performed immediately. The other 2 patients had to undergo this procedure due to stricture. 【Results】 All operations were successful. The median ureteral avulsion or ureteral stricture length was 14.5(6, 16) cm, muscle flap length 16.5(8,18) cm, operation time 190 (160, 240) min, blood loss 175 (100, 250) mL, postoperative hospital stay 8 (7, 12) days, and postoperative creatinine (89.38±21.74) μmoI/L. No major complications occurred. One patient developed urinary leakage, which returned to normal after active glycemic control and nutritional therapy; one patient developed postoperative absorption fever, which recovered after physical cooling. During the follow-up of 6 to 45 months, CT showed mild hydronephrosis in some patients, but no ureteral stenosis, impaired renal function or other complications, and patients complained no subjective discomfort. 【Conclusion】 Laparoscopic bladder muscle flap ureteroplasty is safe and effective for patients with long-segment injury in the middle and lower ureter. It has the advantages of small trauma, few long-term complications, and rapid recovery and improvement of renal function. If necessary, it can be combined with lumbaris major fixation of the bladder to shorten the distance from the muscle flap to the broken end of the ureter and to reduce the tension of the anastomosis.

Peripheral BDNF Regulates Somatosensory-Sympathetic Coupling in Brachial Plexus Avulsion-Induced Neuropathic Pain / 神经科学通报·英文版

Brachial plexus avulsion (BPA) is a combined injury involving the central and peripheral nervous systems. Patients with BPA often experience severe neuropathic pain (NP) in the affected limb. NP is insensitive to the existing treatments, which makes it a challenge to researchers and clinicians. Accumulated evidence shows that a BPA-induced pain state is often accompanied by sympathetic nervous dysfunction, which suggests that the excitation state of the sympathetic nervous system is correlated with the existence of NP. However, the mechanism of how somatosensory neural crosstalk with the sympathetic nerve at the peripheral level remains unclear. In this study, through using a novel BPA C7 root avulsion mouse model, we found that the expression of BDNF and its receptor TrκB in the DRGs of the BPA mice increased, and the markers of sympathetic nervous system activity including α1 and α2 adrenergic receptors (α1-AR and α2-AR) also increased after BPA. The phenomenon of superexcitation of the sympathetic nervous system, including hypothermia and edema of the affected extremity, was also observed in BPA mice by using CatWalk gait analysis, an infrared thermometer, and an edema evaluation. Genetic knockdown of BDNF in DRGs not only reversed the mechanical allodynia but also alleviated the hypothermia and edema of the affected extremity in BPA mice. Further, intraperitoneal injection of adrenergic receptor inhibitors decreased neuronal excitability in patch clamp recording and reversed the mechanical allodynia of BPA mice. In another branch experiment, we also found the elevated expression of BDNF, TrκB, TH, α1-AR, and α2-AR in DRG tissues from BPA patients compared with normal human DRGs through western blot and immunohistochemistry. Our results revealed that peripheral BDNF is a key molecule in the regulation of somatosensory-sympathetic coupling in BPA-induced NP. This study also opens a novel analgesic target (BDNF) in the treatment of this pain with fewer complications, which has great potential for clinical transformation.

Tratamiento de un diente permanente avulsionado y seguimiento por 48 meses / Tratamento de dente permanente avulsionado e acompanhamento por 48 meses / Management of an avulsed permanent tooth and follow-up for 48 months

La avulsión dentaria es considerada una de las lesiones traumáticas más severas. Comprende el desplazamiento completo del diente fuera de su alvéolo con el consiguiente daño a la pulpa y al ligamento periodontal. Las acciones que se realicen en el lugar y momento del accidente y posteriormente al mismo influirán en forma considerable en el pronóstico. El diente deberá ser reimplantado inmediatamente, pero, si esto no fuera posible, el tiempo que transcurra, el medio en que fuera almacenado y el tratamiento profesional que reciba son algunos de los factores trascendentales. Objetivo: Informar el tratamiento de un diente permanente avulsionado y los controles clínico-radiográficos por un periodo de 48 meses. Presentación de caso: Un paciente de 8 años concurrió a la Cátedra Odontología Integral Niños de la Facultad de Odontología de la Universidad de Buenos Aires 30 minutos después de haber sufrido una caída, con avulsión del incisivo central superior derecho, mantenido en un recipiente con leche. El tratamiento de la urgencia consistió en el reimplante dentario y ferulización con resinas compuestas. Posteriormente se realizaron el tratamiento pulpar y los controles clínicos radiográficos correspondientes, con un seguimiento de 48 meses. En la actualidad, el diente se encuentra sano y funcional. Conclusión: El corto periodo de tiempo transcurrido hasta el reimplante, el adecuado medio de almacenamiento utilizado, las maniobras clínicas realizadas y la colaboración del paciente y sus padres contribuyeron al éxito de este tratamiento, con óptima curación del ligamento periodontal.

A avulsão dentária é considerada uma das lesões traumáticas mais graves. Envolve o deslocamento completo do dente para fora de seu alvèolo com consequente dano à polpa e ligamento periodontal. As ações que são realizadas no local e hora do acidente e posteriormente dele influenciarão significativamente o prognóstico. O dente deve ser reimplantado imediatamente, mas, se isso não for possível, o tempo decorrido, o meio em que o dente foi armazenado e o tratamento profissional que recebe são alguns dos fatores transcendentais. Objetivo: Informar o tratamento de um dente permanente avulsado e controles clínico-radiográficos por um período de 48 meses. Apresentação do caso: Um paciente de 8 anos compareceu à Cátedra de Odontologia Integral Infantil da Faculdade de Odontologia da Universidade de Buenos Aires, 30 minutos após sofrer uma queda, com avulsão do incisivo central superior direito, mantido em um recipiente com leite. O tratamento de emergência consistiu em reimplante dentário e imobilização com resinas compostas. Posteriormente, foram realizados o tratamento pulpar e os controles clínicos radiográficos correspondentes, com seguimento de 48 meses. Atualmente, o dente é saudável e funcional. Conclusão: O curto período decorrido até o reimplante, o meio de armazenamento adequado utilizado, as manobras clínicas realizadas e a colaboração do paciente e seus pais contribuíram para o sucesso desse tratamento, com ótima cicatrização do ligamento periodontal.

Avulsion is considered one of the most severe traumatic dental injuries. It involves the complete displacement of the tooth out of its socket with the consequent damage to the pulp and periodontal ligament. The prognosis is significantly influenced by the actions taken at the place and moment of the accident and subsequently. The tooth must be replanted immediately, but if this is not possible, time, storage media and professional management are some of the transcendental factors. Objective: To report the management and follow up for a period of 48 months of an avulsed permanent tooth. Case presentation: An 8-year-old patient attended the Department of Comprehensive Pediatric Dentistry of the Faculty of Dentistry of the University of Buenos Aires, 30 minutes after falling, suffering avulsion of the upper right central incisor, kept in a container with milk. The tooth was replanted and splinted using composite resins. Later, pulp treatment and clinical and radiographic controls were conducted, with a follow-up of 48 months. At present, the tooth is healthy and functional. Conclusion: The short extra-alveolar period, the adequate storage medium, the clinical management and the compliance of the patient and his parents contributed to the optimal healing of the periodontal ligament

Acute ankle injuries: association between sprain severity and ancillary findings

ABSTRACT Objective To correlate the significance of osseous, chondral, tendon, and ligamentous injuries with anatomical variations in low-grade versus high-grade acute ankle sprains. Methods We retrospectively identified the magnetic resonance imaging findings of acute ankle sprains (<15 days). Participants with a history of previous sprains, arthritis, tumors, infections, or inflammatory conditions were excluded. Images were independently evaluated by two musculoskeletal radiologists and assessed for osseous, chondral, tendon, and ligamentous injuries and anatomical variations. Participants were divided into low-grade versus high-grade sprain groups, according to the presence of a complete tear in at least one component of the lateral ligament complex. Results The final study group comprised 100 magnetic resonance images (mean age, 36 years), the majority of males (54%), the right ankle (52%), and a mean sprain duration of 5 days. Participants with high-grade sprains presented with increased rates of medial malleolus edema (p<0.001), moderate and large articular effusions (p=0.041), and shorter calcaneonavicular distance (p=0.008). Complete tears of the anterior talofibular ligament and calcaneofibular ligaments were observed in 100% and 51.2% of the participants in the High-Grade Group, respectively. The deltoid ligament complex was partially torn in this group (55.8% versus 8.8%, p<0.001). Extensor tendon retinaculum lesions occurred significantly more frequently in this group (41.9%) compared to the overall study population (23%) (p<0.001). Conclusion Participants with high-grade ankle sprains presented with shorter calcaneonavicular distances and increased rates of medial malleolus edema, deltoid complex partial tears, extensor retinaculum lesions, and articular effusion.

Efeito da intervenção educativa sobre o nível de conhecimento de acadêmicos de medicina, participantes de uma equipe do Serviço de Atendimento Móvel de Urgência (SAMU), em relação a avulsão de dentes permanentes / Effect of educational intervention on the level of knowledge of participants in a mobile emergency care team (SAMU) in cases of avulsion of permanent teeth

Objetivo: Avaliar o efeito de uma intervenção educativa, sobre avulsão de dentes permanentes, no nível de conhecimento de participantes de uma equipe do SAMU. Métodos: Participaram acadêmicos de Medicina que compunham a equipe do SAMU de Juiz de Fora (MG). A intervenção educativa foi realizada por meio de uma palestra com duração de 15 minutos. Para coleta dos dados foi utilizado um questionário, contendo 13 perguntas sobre avulsão dentária, aplicado em três etapas: antes da palestra (T0), imediatamente após a palestra (T1) e quinze dias após a palestra (T2). Foi realizada análise descritiva e teste McNemar para análise estatística (p < 0,05). Resultados:A amostra foi composta por 36 indivíduos. Nenhum participante relatou ter prestado atendimento a um caso de avulsão dentária. Trinta e quatro acadêmicos informaram não ter recebido orientações anteriores sobre o que fazer diante desse episódio e 35 afirmaram que esse conhecimento é necessário para o médico do SAMU. Houve aumento na porcentagem de acertos após os acadêmicos assistirem a palestra educativa (T1), para sete questões avaliadas. As mesmas questões também apresentaram maior percentual de acertos quinze dias após a palestra educativa (T2). Não houve diferença na capacidade dos acadêmicos reimplantarem um dente avulsionado tanto imediatamente após a palestra educativa (T1), quanto quinze dias após as orientações (T2) (T0-T1: p = 0,999; T0-T2: p = 0,999). Conclusão:A palestra educativa influenciou de forma significativa à melhora do conhecimento sobre avulsão dentária dos acadêmicos de Medicina que fazem parte da equipe do SAMU-JF.

Aim: To evaluate the effect of an educational intervention concerning the avulsion of permanent teeth upon the level of knowledge of members of a SAMU (Ambulance) team. Methods:Medical students who were members of the SAMU team in Juiz de Fora (MG) participated in this study. The educational intervention on the theme was carried out by means of a 15-minute lecture. Data collection was conducted using a structured questionnaire containing 13 objective questions on tooth avulsion, applied to the medical students in three stages: before the lecture (T0), immediately after the lecture (T1), and fifteen days after the lecture (T2). Descriptive analysis and the McNemar test were performed (p < 0.05). Results: The sample consisted of 36 individuals. All participants reported never having attended a dental avulsion case. Thirty-four students reported that they had not received previous guidance on what to do when faced with this type of episode, and 35 stated that information about dental avulsion is necessary for SAMU doctors. For seven of the evaluated questions, an increase was identified in the percentage of correct answers after the students attended the educational lecture (T1). The same questions also showed a higher percentage of correct answers fifteen days after the educational lecture (T2). No difference was found in the students' ability to reimplant an avulsed tooth either immediately after the educational lecture (T1) or fifteen days after receiving guidance on the subject (T2) (T0-T1: p = 0.999; T0-T2: p = 0.999). Conclusion: The educational lecture significantly influenced the improvement of knowledge about dental avulsion among medical students who are members of the SAMU-JF team.

Viability of periodontal ligament cells in selected transport media for avulsed teeth: an in vitro study

To compare the viability of periodontal ligament (PDL) cells stored in Hanks Balanced Salt Solution (HBSS) with those in readily available transport media over a variable period of time. Methods: Periodontal ligament cells harvested from premolars freshly extracted for orthodontic reasons were cultured for exponential growth. The cells were exposed to egg white, evaporated milk, water and Hanks Balanced Salt Solution (HBSS) at room temperature. Their viability was evaluated after 30 minutes, 1 hour and 3 hours with the tetrazolium salt-based colorimetric assay (MTT assay). Statistical analysis was done using the IBM® SPSS version 23.0 software. Comparison between the Mean Optical Densities (MODs) of the cells stored in HBSS and other media at each time interval was done using the independent t test. Repeated measure ANOVA and Tukey post-hoc test were also carried out to compare the MOD of cells within each medium over time. The level of significance was set at p <0.05. Result: The PDL cells stored in egg white had higher MODs than those in HBSS at 30 minutes and 1 hour. Conversely, the MODs of the cells stored in milk and water were lower than those in HBSS at all the studied points. There was a significant difference in the viability of the cells stored in HBSS and water at all the time points (p<0.05). Conclusion: For up to an hour, egg white was found to perform better than HBSS in supporting the viability of PDL cell