Monteggia equivalent lesion in children: a narrative review

BackgroundMonteggia equivalent lesion represents a group of injury or combined injury patterns that resemble the Monteggia lesion in its presentations and mechanisms. Unlike Monteggia lesions, the equivalent ones, which share vague definitions and mostly occur as sporadic single case reports in the literature, have not been thoroughly reviewed since Bado first proposed the term, especially in the pediatric population. The objective of this review was to elucidate the definition by elaborating on its clinical styles and thus analyzing the mechanism, diagnosis, and management through related literature.Data sourcesBased on the terms of ‘Monteggia equivalent’, ‘radial neck fracture’ and ‘pediatric’, all of the related literature was searched on the PubMed and Google Scholar search engine.ResultsThe advance of the definitions for pediatric Monteggia equivalent lesion (PMEL) was reviewed. The functional roles of the ulnar and the related mechanism theories in this injury were analyzed. The status of the radiocapitellar joint in this injury was emphasized. According to the previous statements, a new classification model was proposed and proper diagnosis and treatment approaches were suggested.ConclusionsPMEL should be defined as an ulnar fracture at any level combined with a proximal radial fracture. According to the status of the radiocapitellar joint, it could be divided into three groups. The occult ulnar bowing and delayed radial head dislocation should be a serious concern of orthopedists. Surgical need is usually warranted. Maintaining the ulnar length and securing the radiocapitellar joint are highly recommended.

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Pediatric Posterior Monteggia Lesion: A Greenstick Fracture of the Proximal Ulnar Metaphysis With Radial Neck Fracture. A Case Report

Journal of Orthopaedic Trauma ◽

10.1097/bot.0b013e3181a5e441 ◽

2010 ◽

Vol 24 (2) ◽

pp. e12-e16 ◽

Cited By ~ 3

Author(s):

Yoo Joon Sur ◽

Jong-Beom Park ◽

Seok Whan Song

Keyword(s):

Case Report ◽

Monteggia Lesion ◽

Radial Neck Fracture ◽

Radial Neck ◽

Neck Fracture ◽

Greenstick Fracture

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There is no place for the psychoanalytic case report in the British Journal of Psychiatry

The British Journal of Psychiatry ◽

10.1192/bjp.bp.109.064451 ◽

2009 ◽

Vol 195 (6) ◽

pp. 483-487 ◽

Cited By ~ 14

Author(s):

Lewis Wolpert ◽

Peter Fonagy

Keyword(s):

Mental Health ◽

British Journal ◽

Clinical Utility ◽

Single Case ◽

Case Reports ◽

Controlled Trial ◽

Evidence Based ◽

The Status ◽

Randomised Controlled ◽

Scientific Testing

SummaryAs evidence-based mental health and the randomised controlled trial come to dominate the content of major psychiatric journals, the status and clinical utility of single case reports have been increasingly questioned. Arguably, owing to their subjective, anecdotal nature and unsuitability for rigorous scientific testing, this is particularly true of psychoanalytic case studies. Professor Peter Fonagy and Professor Lewis Wolpert debate here whether or not there is a place for such case reports in the British Journal of Psychiatry.

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Radial neck fracture or Monteggia equivalent lesion: delayed radial head subluxation in an adolescent and review of literature

BMC Musculoskeletal Disorders ◽

10.1186/s12891-020-03315-0 ◽

2020 ◽

Vol 21 (1) ◽

Author(s):

Lujie Xu ◽

Wensong Ye

Keyword(s):

Radial Head ◽

Review Of Literature ◽

Radial Neck Fracture ◽

Radial Neck ◽

Neck Fracture ◽

Monteggia Equivalent Lesion

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Post-Infectious Guillain–Barré Syndrome Related to SARS-CoV-2 Infection: A Systematic Review

Life ◽

10.3390/life11020167 ◽

2021 ◽

Vol 11 (2) ◽

pp. 167

Author(s):

Pasquale Sansone ◽

Luca Gregorio Giaccari ◽

Caterina Aurilio ◽

Francesco Coppolino ◽

Valentina Esposito ◽

...

Keyword(s):

Single Case ◽

Case Reports ◽

Case Series ◽

Guillain Barre Syndrome ◽

Response To Treatment ◽

Comprehensive Overview ◽

Fisher Syndrome ◽

Immunomodulating Therapy ◽

Guillain Barré Syndrome ◽

Guillain Barré

Background. Guillain-Barré syndrome (GBS) is the most common cause of flaccid paralysis, with about 100,000 people developing the disorder every year worldwide. Recently, the incidence of GBS has increased during the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) epidemics. We reviewed the literature to give a comprehensive overview of the demographic characteristics, clinical features, diagnostic investigations, and outcome of SARS-CoV-2-related GBS patients. Methods. Embase, MEDLINE, Google Scholar, and Cochrane Central Trials Register were systematically searched on 24 September 2020 for studies reporting on GBS secondary to COVID-19. Results. We identified 63 articles; we included 32 studies in our review. A total of 41 GBS cases with a confirmed or probable COVID-19 infection were reported: 26 of them were single case reports and 6 case series. Published studies on SARS-CoV-2-related GBS typically report a classic sensorimotor type of GBS often with a demyelinating electrophysiological subtype. Miller Fisher syndrome was reported in a quarter of the cases. In 78.1% of the cases, the response to immunomodulating therapy is favourable. The disease course is frequently severe and about one-third of the patients with SARS-CoV-2-associated GBS requires mechanical ventilation and Intensive Care Unit (ICU) admission. Rarely the outcome is poor or even fatal (10.8% of the cases). Conclusion. Clinical presentation, course, response to treatment, and outcome are similar in SARS-CoV-2-associated GBS and GBS due to other triggers.

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Analysis of Clinical, Imaging, and Pathologic Features of 36 Patients with Primary Intraspinal Primitive Neuroectodermal Tumors: A Case Series and Literature Review

Journal of Neurological Surgery Part A Central European Neurosurgery ◽

10.1055/s-0041-1723810 ◽

2021 ◽

Author(s):

Xuefeng Wei ◽

Xu Zhang ◽

Zimu Song ◽

Feng Wang

Keyword(s):

Literature Review ◽

Single Case ◽

Case Reports ◽

Case Series ◽

Subtotal Resection ◽

Study Cohort ◽

Primitive Neuroectodermal Tumors ◽

Pathologic Features ◽

Neuroectodermal Tumors ◽

The Mean

Abstract Background and Study Aims Primary intraspinal primitive neuroectodermal tumors (PNETs) account for ∼0.4% of all intraspinal tumors, but information about these tumors in the medical literature is limited to single case reports. We report four cases of primary intraspinal PNETs and present a systematic literature review of the reported cases. Materials and Methods We retrospectively reviewed and analyzed the clinical data of 4 patients with primary intraspinal PNETs who underwent neurosurgical treatment at our clinic between January 2013 and January 2020, and of 32 cases reported in the literature. Results The female-to-male ratio was 2.6:1. The mean patient age was 21.42 ± 15.76 years (range: 1–60 years), and patients <36 years of age accounted for 83.30% of the study cohort. Progressive limb weakness and numbness were the chief symptoms (accounting for ∼55.6%). The mean complaint duration was 0.89 ± 0.66 months for males and 2.72 ± 3.82 months for females (p = 0.028). Epidural (41.7%) was the most common site, and thoracic (47.3%) was the most frequent location. Most PNETs were peripheral, and magnetic resonance imaging (MRI) appearance was isointense or mildly hypointense on T1-weighted images and hyperintense on T2-weighted images. Homogeneous contrast enhancement was observed. The 1-year survival rate of patients who underwent chemoradiation after total or subtotal lesion resection was better compared with patients who did not undergo chemotherapy, radiotherapy, or total or subtotal resection. The modality of treatment was associated with survival time (p = 0.007). Conclusion Primary intraspinal PNETs mainly occur in young people with a female preponderance. In patients with a rapid loss of lower limb muscle strength and large intraspinal lesions on MRI, PNETs should be considered. Surgical resection and adjuvant radio chemotherapy are key prognostic factors.

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Micronodular Thymoma With Lymphoid Stroma: A Trio of Cases, With Diverse-associated Histological Features

International Journal of Surgical Pathology ◽

10.1177/10668969211001110 ◽

2021 ◽

pp. 106689692110011

Author(s):

Neha Bakshi ◽

Shashi Dhawan ◽

Seema Rao ◽

Kishan Singh Rawat

Keyword(s):

Mediastinal Mass ◽

Single Case ◽

Case Reports ◽

Good Prognosis ◽

Anterior Mediastinal Mass ◽

Histological Features ◽

Lymphoid Stroma ◽

Thymic Cysts ◽

Robotic Thymectomy ◽

Conventional Type

Introduction. Micronodular thymoma with lymphoid stroma (MNTLS) is a rare thymoma subtype characterized by distinctive histological appearance, unique clinical profile, and indolent course with good prognosis. In addition to its distinctive morphology, MNTLS may be associated with diverse histological features, such as thymic cysts and conventional thymoma, complicating the diagnostic picture further. Materials and methods. We report herein an account of 3 elderly patients (male—02; female—01), who presented with anterior mediastinal mass, and underwent robotic thymectomy. Microscopic examination revealed MNTLS in all 3 cases. In addition, 2 cases showed associated histological features in the form of a multilocular thymic cyst and conventional (type B2) thymoma, respectively. All 3 patients are doing well without recurrence or metastasis at 34, 28, and 19 months postsurgery. Conclusions. Awareness of this rare thymoma subtype is vital among pathologists to avoid misdiagnosis and ensure appropriate patient management. To date, only a few cases of this rare thymoma subtype have been reported in the literature, mostly as single case reports.

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Deep Learning-Based Cattle Vocal Classification Model and Real-Time Livestock Monitoring System with Noise Filtering

Animals ◽

10.3390/ani11020357 ◽

2021 ◽

Vol 11 (2) ◽

pp. 357

Author(s):

Dae-Hyun Jung ◽

Na Yeon Kim ◽

Sang Ho Moon ◽

Changho Jhin ◽

Hak-Jin Kim ◽

...

Keyword(s):

Deep Learning ◽

Real Time ◽

Model Development ◽

Classification Model ◽

Intelligence Analysis ◽

Noise Filtering ◽

Meat Industry ◽

Mel Frequency Cepstral Coefficients ◽

Web Based ◽

The Status

The priority placed on animal welfare in the meat industry is increasing the importance of understanding livestock behavior. In this study, we developed a web-based monitoring and recording system based on artificial intelligence analysis for the classification of cattle sounds. The deep learning classification model of the system is a convolutional neural network (CNN) model that takes voice information converted to Mel-frequency cepstral coefficients (MFCCs) as input. The CNN model first achieved an accuracy of 91.38% in recognizing cattle sounds. Further, short-time Fourier transform-based noise filtering was applied to remove background noise, improving the classification model accuracy to 94.18%. Categorized cattle voices were then classified into four classes, and a total of 897 classification records were acquired for the classification model development. A final accuracy of 81.96% was obtained for the model. Our proposed web-based platform that provides information obtained from a total of 12 sound sensors provides cattle vocalization monitoring in real time, enabling farm owners to determine the status of their cattle.

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Schwannoma of the abdominal wall: updated literature review

European Surgery ◽

10.1007/s10353-021-00720-0 ◽

2021 ◽

Author(s):

Tommaso Panici Tonucci ◽

Andrea Sironi ◽

Eleonora Pisa ◽

Benedetta Di Venosa ◽

Luigi Bonavina

Keyword(s):

Differential Diagnosis ◽

Literature Review ◽

Abdominal Wall ◽

Single Case ◽

Case Reports ◽

Rectus Abdominis ◽

Malignant Neoplasms ◽

Palpable Mass ◽

Surgical Specimen ◽

Benign Schwannoma

Summary Background Schwannoma is a benign tumor arising from Schwann cells of the peripheral nerves. It is often asymptomatic and can develop in the retroperitoneum, mediastinum, head and neck region, and upper and lower extremities. Schwannoma of the abdominal wall is extremely rare, but differential diagnosis with malignant neoplasms is important to reduce the risk of undertreatment. Methods A narrative review of abdominal wall schwannoma was performed using PubMed, EMBASE, and Web of Science database and the search terms “schwannoma”, “neurinoma”, “neurilemmoma”, “soft tissue tumors”, “neurogenic tumor”, “rectus abdominis mass”, “abdominal wall”. In addition, the hospital charts were reviewed to report the personal experience. Results Only 9 single case-reports of benign schwannoma of the abdominal wall were found in the English medical literature over the past decade. None of the patients received preoperative biopsy and all were resected with clear margins. In addition to the literature review, we report the case of a 58-year-old man referred for a palpable mass in the left upper abdominal quadrant. Ultrasonography and magnetic resonance imaging revealed a solid and well-encapsulated mass inside the left rectus abdominis muscle. A core biopsy of the lesion provided the diagnosis of cellular schwannoma and this was confirmed by histopathologic examination of the surgical specimen. Conclusions Benign schwannoma of the abdominal wall is extremely rare. Percutaneous core needle biopsy is important for the differential diagnosis with more common and biologically more aggressive malignancies, such as desmoid tumors and sarcomas, and may be relevant for planning the most appropriate management.

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Insidious Onset Compartment Syndrome of the Forearm in a Teenager: A Case Report and Review of the Literature

The Journal of Hand Surgery (Asian-Pacific Volume) ◽

10.1142/s2424835521720218 ◽

2021 ◽

Vol 26 (03) ◽

pp. 481-484

Author(s):

Hidetoshi Iwata ◽

Hideki Okamoto ◽

Yohei Kawaguchi ◽

Kojiro Endo ◽

Yuji Joyo ◽

...

Keyword(s):

Compartment Syndrome ◽

Single Case ◽

Case Reports ◽

Upper Extremities ◽

Review Of The Literature ◽

Right Hand ◽

Insidious Onset ◽

Forearm Compartment Syndrome ◽

Cash Register ◽

Proximal Forearm

Compartment syndrome affecting the upper extremities is a relatively underreported event compared with compartment syndrome affecting the lower extremities. Moreover, insidious onset forearm compartment syndrome has been rarely reported and is usually limited to single case reports. We report a compartment syndrome of the forearm in a teenager. She hit her right proximal forearm lightly on the cash register, but there was no pain. However, the next day, she had difficulty in moving her right hand. Although she underwent electrotherapy, her right forearm gradually became swollen, and she felt numbness in the ring and little fingers of her right hand. Six day after the onset, she came to our hospital and underwent fasciotomy. There was no aftereffect, and very good functional recovery was obtained. All clinicians need to keep the case of forearm compartment syndrome in a young individual with a diffuse course, such as in this case in mind.

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