Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 570
Filtrar
1.
Orthopadie (Heidelb) ; 53(10): 765-772, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39172177

RESUMEN

INTRODUCTION: Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy syndrome of the upper extremities. The carpal tunnel is an osteofibrous canal that is medially bordered by hamulus ossis hamati and pisiform bone, and laterally by scaphoid and trapezoid bones. In this retrospective case-control study, we investigated the relationship between radiologically measured morphometric indices and CTS in female patients. METHODS: Clinical, radiological, and demographic data were collected for 55 hands of 40 female patients diagnosed with CTS and 58 hands of control subjects. Radiological measurements included various morphometric parameters derived from wrist and hand X-rays. Statistical analysis was conducted to assess associations between morphometric indices and CTS. RESULTS: Significant associations were observed between CTS and several morphometric indices, including carpal height, capitate length, palm length, and others. Notably, these values were lower in CTS patients, suggesting a potential link between reduced carpal tunnel volume and increased pressure due to synovial hypertrophy. Additionally, a newly introduced index, Scaphoid Pisiform Width Index (SPWI), showed promise in assessing the proximal part of the carpal tunnel. CONCLUSION: It was found that the values for Capitate length, Carpal height, Palm length, SPWI, and Palmar ratio were lower in the patient group. These results suggested that decreasing volume of the carpal tunnel allows for an easier increase in carpal tunnel pressure due to increased synovial hypertrophy and the carpal bone configuration affects the proximal part of the carpal tunnel, and influences the compression of the median nerve, in female patients.


Asunto(s)
Síndrome del Túnel Carpiano , Humanos , Síndrome del Túnel Carpiano/diagnóstico por imagen , Síndrome del Túnel Carpiano/patología , Femenino , Persona de Mediana Edad , Adulto , Estudios de Casos y Controles , Estudios Retrospectivos , Radiografía/métodos , Huesos del Carpo/diagnóstico por imagen , Huesos del Carpo/patología , Anciano , Sensibilidad y Especificidad
2.
Anat Histol Embryol ; 53(4): e13080, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38922719

RESUMEN

Septic arthritis is common in newborn calves due to poor birth and housing hygiene. This study investigated the pathological deformities caused by arthritis in the carpal bones of calves using geometric morphometry. The changes in the carpal joint bones of newborn calves with septic arthritis were examined through shape analysis. The study included 20 healthy Simmental calves and 30 Simmental calves with septic arthritis. Dorso-palmar x-ray images of the carpal joint were taken, and geometric morphometry was performed on these images using 25 landmarks. The first principal components (PC1) represented 26.92% of the total variation, while PC2 represented 13.84%. One of the most significant shape changes with increasing PC1 occurred in the os carpi intermedium. The study found that it was statistically possible to discriminate between radiometric carpal joint images of Simmental calves in the control and arthritis groups using geometric morphometry. In newborn calves with septic arthritis, the trochlea radi was located more proximally. There was an enlargement of the os carpi intermedium and a tendency towards the os carpi ulnare in female calves with septic arthritis. These results indicate significant bone deformation due to septic arthritis. Geometric morphometric methods can be clinically useful, as demonstrated in this study. Researchers can statistically explore these shape analyses, opening new avenues for research in this field. This method not only enhances our understanding of morphological changes but also provides a framework for clinical investigations and discoveries in related areas.


Asunto(s)
Animales Recién Nacidos , Artritis Infecciosa , Articulaciones del Carpo , Enfermedades de los Bovinos , Animales , Artritis Infecciosa/veterinaria , Artritis Infecciosa/diagnóstico por imagen , Artritis Infecciosa/patología , Bovinos , Femenino , Articulaciones del Carpo/diagnóstico por imagen , Articulaciones del Carpo/patología , Masculino , Enfermedades de los Bovinos/patología , Enfermedades de los Bovinos/diagnóstico por imagen , Radiografía/veterinaria , Análisis de Componente Principal , Huesos del Carpo/diagnóstico por imagen , Huesos del Carpo/patología
3.
Am J Med Genet A ; 194(8): e63616, 2024 08.
Artículo en Inglés | MEDLINE | ID: mdl-38551204

RESUMEN

Multicentric carpotarsal osteolysis syndrome (MCTO) is a rare skeletal disorder characterized by progressive osteolysis involving the carpal and tarsal bones, and often associated with nephropathy. It is caused by heterozygous mutation in the MAF bZIP transcription factor B (MAFB) gene. Heterogeneous clinical manifestation and wide spectrum of disease severity have been observed in patients with MCTO. Here, we report a case of a male patient who presented with kidney failure in childhood with progressive disabling skeletal deformity. He was diagnosed with MCTO at 31-years-old, where a de novo pathogenic heterozygous variant in NM_005461.5:c.212C>A: p.(Pro71His) of the MAFB gene was identified. While there has been little data on the long-term prognosis and life expectancy of this disease, this case report sheds light on the debilitating disease course with multiple significant morbidities of a patient with MCTO throughout his lifetime of 33 years.


Asunto(s)
Factor de Transcripción MafB , Osteólisis , Humanos , Masculino , Osteólisis/genética , Osteólisis/patología , Factor de Transcripción MafB/genética , Adulto , Mutación/genética , Huesos Tarsianos/patología , Huesos Tarsianos/anomalías , Huesos del Carpo/anomalías , Huesos del Carpo/patología , Heterocigoto , Fenotipo
4.
Curr Osteoporos Rep ; 21(1): 85-94, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36477366

RESUMEN

PURPOSE OF REVIEW: Multicentric carpotarsal osteolysis (MCTO) is an ultra-rare disorder characterized by osteolysis of the carpal and tarsal bones, subtle craniofacial deformities, and nephropathy. The molecular pathways underlying the pathophysiology are not well understood. RECENT FINDINGS: MCTO is caused by heterozygous mutations in MAFB, which encodes the widely expressed transcription factor MafB. All MAFB mutations in patients with MCTO result in replacement of amino acids that cluster in a phosphorylation region of the MafB transactivation domain and account for a presumed gain-of-function for the variant protein. Since 2012, fewer than 60 patients with MCTO have been described with 20 missense mutations in MAFB. The clinical presentations are variable, and a genotype-phenotype correlation is lacking. Osteolysis, via excessive osteoclast activity, has been regarded as the primary mechanism, although anti-resorptive agents demonstrate little therapeutic benefit. This paper appraises current perspectives of MafB protein action, inflammation, and dysfunctional bone formation on the pathogenesis of the skeletal phenotype in MCTO. More research is needed to understand the pathogenesis of MCTO to develop rational therapies.


Asunto(s)
Huesos del Carpo , Osteólisis , Humanos , Osteólisis/genética , Mutación , Mutación Missense , Huesos del Carpo/patología , Fenotipo
5.
F1000Res ; 12: 1490, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38957200

RESUMEN

Background: Pigmented Villonodular Synovitis (PVNS) is a rare disease of osteoskeletal tissue. Cytodiagnosis of PVNS on fine needle aspiration (FNA) smears is therefore rarely reported. The PVNS usually affects the larger joints. The involvement of the smaller joints and bones are uncommon. Case presentation: The reported case is one such rarity wherein the diagnosis of PVNS was carried out on the FNAC. The case showed the involvement of all carpal bones except for the pisiform. The 2 nd- 5 th metacarpal bases were also found to be involved in the disease process. The presence of sheets of synoviocytes with brown altered hue to the cytoplasm along with multinucleate giant cells and pigmented macrophages were characteristically present in the smears of FNA. The diagnosis was confirmed on the tissue biopsy. The present case is reported for its unusual multiosteotic involvement of wrist joint bones and the metacarpal bones simultaneously with radiological evidence. The cytomorphology of the lesion in the present case were noteworthy as a learning experience in reporting of PVNS of wrist joint on FNA smears.


Asunto(s)
Huesos del Carpo , Sinovitis Pigmentada Vellonodular , Humanos , Sinovitis Pigmentada Vellonodular/patología , Sinovitis Pigmentada Vellonodular/diagnóstico , Huesos del Carpo/patología , Huesos del Carpo/diagnóstico por imagen , Biopsia con Aguja Fina , Citodiagnóstico/métodos , Masculino , Muñeca/patología , Adulto , Femenino
6.
Medicine (Baltimore) ; 100(28): e26445, 2021 Jul 16.
Artículo en Inglés | MEDLINE | ID: mdl-34260526

RESUMEN

RATIONALE: Several diseases feature tumors, or tumor-mimicking lesions, that further invade the bone and surrounding joints of the wrist region. Here, we describe 3 rare cases of multiple destructed carpal bones and adjacent joints in different disease entities confirmed via pathologic diagnosis. PATIENT CONCERNS: All 3 cases were examined between January 2016 and December 2019. Three patients presented with similar clinical manifestations and radiographic features, with multiple osteolytic lesions in the carpal bones and metacarpal bone base. DIAGNOSES: The 3 cases were diagnosed as diffuse type tenosynovial giant cell tumor, calcifying aponeurotic fibroma, and rheumatoid arthritis. INTERVENTIONS: Separate, experienced radiologist and pathologist took part in the interpretation and compartmentalization of radiographs and pathological findings, respectively. Even magnetic resonance imaging could not achieve a diagnosis; surgical excision was therefore required, with subsequent pathological assessment for treatment and final diagnosis. OUTCOMES: functional outcomes also differed among patients, poorest in rheumatoid arthritis patient. LESSONS: We report 3 rare disease entities, presenting with multifocal osteolytic lesions in the wrist. They all presented with similar clinical manifestations, and the final diagnoses were made via pathological evaluation. Compared with tenosynovial giant cell tumor and calcifying aponeurotic fibroma, rheumatoid arthritis had the poorest outcome.


Asunto(s)
Artritis Reumatoide/patología , Huesos del Carpo/patología , Fibroma Osificante/patología , Tumor de Células Gigantes de las Vainas Tendinosas/patología , Neoplasias de los Tejidos Blandos/patología , Artritis Reumatoide/diagnóstico , Huesos del Carpo/diagnóstico por imagen , Diagnóstico Diferencial , Femenino , Fibroma Osificante/diagnóstico , Tumor de Células Gigantes de las Vainas Tendinosas/diagnóstico , Humanos , Masculino , Persona de Mediana Edad , Osteólisis/diagnóstico por imagen , Osteólisis/patología , Neoplasias de los Tejidos Blandos/diagnóstico
7.
Front Endocrinol (Lausanne) ; 12: 568454, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34122326

RESUMEN

Background: Bone parameters derived from HR-pQCT have been investigated on a parameter-by-parameter basis for different clinical conditions. However, little is known regarding the interrelationships of bone parameters and the spatial distribution of these interrelationships. In this work: 1) we investigate compartmental interrelationships of bone parameters; 2) assess the spatial distribution of interrelationships of bone parameters; and 3) compare interrelationships of bone parameters between postmenopausal women with and without a recent Colles' fracture. Methods: Images from the unaffected radius in fracture cases (n=84), and from the non-dominant radius of controls (n=98) were obtained using HR-pQCT. Trabecular voxel-based maps of local bone volume fraction (L.Tb.BV/TV), homogenized volumetric bone mineral density (H.Tb.BMD), homogenized µFEA-derived strain energy density (H.Tb.SED), and homogenized inter-trabecular distances (H.Tb.1/N) were generated; as well as surface-based maps of apparent cortical bone thickness (Surf.app.Ct.Th), porosity-weighted cortical bone thickness (Surf.Ct.SIT), mean cortical BMD (Surf.Ct.BMD), and mean cortical SED (Surf.Ct.SED). Anatomical correspondences across the parametric maps in the study were established via spatial normalization to a common template. Mean values of the parametric maps before spatial normalization were used to assess compartmental Spearman's rank partial correlations of bone parameters (e.g., between H.Tb.BMD and L.Tb.BV/TV or between Surf.Ct.BMD and Surf.app.Ct.Th). Spearman's rank partial correlations were also assessed for each voxel and vertex of the spatially normalized parametric maps, thus generating maps of Spearman's rank partial correlation coefficients. Correlations were performed independently within each group, and compared between groups using the Fisher's Z transformation. Results: All within-group global trabecular and cortical Spearman's rank partial correlations were significant; and the correlations of H.Tb.BMD-L.Tb.BV/TV, H.Tb.BMD-H.Tb.1/N, L.Tb.BV/TV-H.Tb.1/N, Surf.Ct.BMD-Surf.Ct.SED and Surf.Ct.SIT-Surf.Ct.SED were significantly different between controls and fracture cases. The spatial analyses revealed significant heterogeneous voxel- and surface-based correlation coefficient maps across the distal radius for both groups; and the correlation maps of H.Tb.BMD-L.Tb.BV/TV, H.Tb.BMD-H.Tb.1/N, L.Tb.BV/TV-H.Tb.1/N, H.Tb.1/N-H.Tb.SED and Surf.app.Ct.Th - Surf.Ct.SIT yielded small clusters of significant correlation differences between groups. Discussion: The heterogeneous spatial distribution of interrelationships of bone parameters assessing density, microstructure, geometry and biomechanics, along with their global and local differences between controls and fracture cases, may help us further understand different bone mechanisms of bone fracture.


Asunto(s)
Densidad Ósea/fisiología , Huesos , Fractura de Colles , Anciano , Fenómenos Biomecánicos , Huesos/patología , Huesos/fisiopatología , Huesos/ultraestructura , Huesos del Carpo/diagnóstico por imagen , Huesos del Carpo/patología , Huesos del Carpo/fisiopatología , Huesos del Carpo/ultraestructura , Estudios de Casos y Controles , Fractura de Colles/diagnóstico , Fractura de Colles/etiología , Fractura de Colles/patología , Fractura de Colles/fisiopatología , Femenino , Antebrazo/diagnóstico por imagen , Antebrazo/fisiopatología , Traumatismos del Antebrazo/diagnóstico , Traumatismos del Antebrazo/patología , Traumatismos del Antebrazo/fisiopatología , Humanos , Persona de Mediana Edad , Minnesota , Porosidad , Radio (Anatomía)/diagnóstico por imagen , Radio (Anatomía)/patología , Radio (Anatomía)/fisiopatología , Radio (Anatomía)/ultraestructura , Análisis Espacial , Tomografía Computarizada por Rayos X/métodos , Articulación de la Muñeca/diagnóstico por imagen , Articulación de la Muñeca/patología , Articulación de la Muñeca/fisiopatología , Articulación de la Muñeca/ultraestructura
8.
Am J Med Genet A ; 185(8): 2477-2481, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-33988298

RESUMEN

Multicentric carpotarsal osteolysis (MCTO) is an autosomal dominant condition characterized by carpal-tarsal abnormalities; over half of affected individuals also develop renal disease. MCTO is caused by mutations of MAFB; however, there is no clear phenotype-genotype correlation. We describe the first reported family of variable MCTO phenotype due to mosaicism: the proband had classical skeletal features and renal involvement due to focal segmental glomerulosclerosis (FSGS), and the father had profound renal impairment due to FSGS, necessitating kidney transplantation. Mosaicism was first suspected in this family due to unequal allele ratios in the sequencing chromatograph of the initial blood sample of proband's father and confirmed by sequencing DNA extracted from the father's hair, collected from different bodily parts. This case highlights the need for a high index of clinical suspicion to detect low-level parental mosaicism, as well as a potential role for MAFB mutation screening in individuals with isolated FSGS.


Asunto(s)
Huesos del Carpo/anomalías , Huesos del Carpo/patología , Familia , Síndrome de Hajdu-Cheney/diagnóstico , Síndrome de Hajdu-Cheney/genética , Mosaicismo , Penetrancia , Alelos , Biomarcadores , Análisis Mutacional de ADN , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Genotipo , Síndrome de Hajdu-Cheney/cirugía , Humanos , Factor de Transcripción MafB/genética , Masculino , Mutación , Linaje , Fenotipo , Radiografía , Análisis de Secuencia de ADN , Adulto Joven
9.
Rofo ; 193(2): 139-150, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32882727

RESUMEN

BACKGROUND: The term "carpal instability" describes different debilitating wrist conditions, in which the carpus is unable to maintain its physiological range of motion and load transfer. Depending on the cause and location of the dysfunction, four groups can be defined: dissociative, non-dissociative, complex, and adaptive carpal instability. As the most common form by far, dissociative carpal instability can further be categorized as dorsal or palmar intercalated segment instability, contingent on the afflicted interosseous ligament. METHOD: This review article outlines the different entities of carpal instability, their pathophysiology, and their clinical presentation. It further discusses the diagnostic significance of different imaging methods as well as the established treatment options for each form of instability in context with the current literature. RESULTS AND CONCLUSION: Early detection and treatment of carpal instability are essential for preventing carpal osteoarthritis. Traumatic lesions of the scapholunate interosseous ligament are the most frequent cause of instability. They can occur in an isolated fashion or in context with other carpal injuries. While stress imaging and fluoroscopy facilitate the differentiation between dynamic and static forms of carpal instability, only MRI and CT/MR arthrography can directly reveal the extent of ligament discontinuity. KEY POINTS: · Carpal instability can manifest only in motion (dynamic) or at rest (static).. · Dissociative forms must be distinguished from non-dissociative, adaptive, or complex entities.. · Most instabilities are related to traumatic injuries or CPPD arthropathy.. · Fluoroscopy, stress imaging, and MR and CT arthrography are helpful for diagnosis.. CITATION FORMAT: · Grunz JP, Gietzen CH, Grunz K et al. Imaging of Carpal Instabilities. Fortschr Röntgenstr 2021; 193: 139 - 150.


Asunto(s)
Huesos del Carpo/diagnóstico por imagen , Inestabilidad de la Articulación/diagnóstico por imagen , Ligamentos/diagnóstico por imagen , Osteoartritis/prevención & control , Artrografía/métodos , Huesos del Carpo/lesiones , Huesos del Carpo/patología , Diagnóstico Precoz , Fluoroscopía/métodos , Humanos , Inestabilidad de la Articulación/etiología , Inestabilidad de la Articulación/fisiopatología , Inestabilidad de la Articulación/cirugía , Ligamentos/patología , Ligamentos/cirugía , Imagen por Resonancia Magnética/métodos , Rango del Movimiento Articular/fisiología , Tomografía Computarizada por Rayos X/métodos , Traumatismos de la Muñeca/complicaciones
10.
Int J Mycobacteriol ; 9(3): 325-328, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32862171

RESUMEN

Tuberculosis (TB) is the most prevalent infectious disease in Southeast Asia. It causes both pulmonary and extrapulmonary diseases. TB of the wrist is rare and presents as osteomyelitis or tenosynovitis. We report a middle-aged male with carpal bone tuberculous osteomyelitis. He presented with left wrist pain initially treated as gouty arthritis. Within 2 weeks, he developed seropurulent discharge with osteomyelitic changes on imaging. He underwent debridement, and intraoperatively, there was destruction of most carpal bones. Histopathological examination revealed chronic granulomatous inflammation with abscess formation. Anti-TB medication was initiated, and he made a complete recovery with almost full range of wrist movement after 9 months of treatment. This case serves as a reminder that TB is a great mimicker, and a high index of suspicion is required to make a diagnosis of TB of the wrist. Early initiation of anti-TB is pivotal to prevent complications and deterioration of joint functions.


Asunto(s)
Artritis Gotosa/patología , Huesos del Carpo/microbiología , Huesos del Carpo/patología , Osteomielitis/microbiología , Tuberculosis Osteoarticular/diagnóstico por imagen , Absceso , Antituberculosos/uso terapéutico , Técnicas Histológicas , Humanos , Masculino , Persona de Mediana Edad , Osteomielitis/diagnóstico , Osteomielitis/cirugía , Radiografía , Resultado del Tratamiento , Tuberculosis Osteoarticular/tratamiento farmacológico , Tuberculosis Osteoarticular/microbiología , Tuberculosis Osteoarticular/cirugía , Muñeca/microbiología , Muñeca/patología
11.
Am J Med Genet A ; 182(6): 1438-1448, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32259393

RESUMEN

Multiple synostoses syndrome (SYNS1; OMIM# 186500) is a rare autosomal dominant disorder reported in a few cases worldwide. We report a Chinese pedigree characterized by proximal symphalangism, conductive hearing loss, and distinctive facies. We examined the genetic cause and reviewed the literature to discuss the pathogeny, treatment, and prevention of SYNS1. Audiological, ophthalmological, and radiological examinations were evaluated. Whole-exome sequencing (WES) was performed to identify mutations in the proband and her parents. Sanger sequencing was used to verify the results for the proband, parents, and grandmother. The literature on the genotype-phenotype correlation was reviewed. The patient was diagnosed with multiple synostoses syndrome clinically. WES and bioinformatic analysis revealed a novel missense mutation in the NOG gene, c.554C>G (p.Ser185Cys), cosegregated in this family. The literature review showed that the phenotype varies widely, but the typical facies, conductive hearing loss, and proximal symphalangism occurred frequently. All reported mutations are highly conserved in mammals based on conservation analysis, and there are regional hot spots for these mutations. However, no distinct genotype-phenotype correlations have been identified for mutations in NOG in different races. Regular systematic examinations and hearing aids are beneficial for this syndrome. However, the outcomes of otomicrosurgery are not encouraging owing to the regrowth of bone. This study expanded the mutation spectrum of NOG and is the first report of SYNS1 in a Chinese family. Genetic testing is recommended as part of the diagnosis of syndromic deafness. A clinical genetic evaluation is essential to guide prevention, such as preimplantation genetic diagnosis.


Asunto(s)
Anquilosis/genética , Huesos del Carpo/anomalías , Proteínas Portadoras/genética , Deformidades Congénitas del Pie/genética , Deformidades Congénitas de la Mano/genética , Pérdida Auditiva Conductiva/genética , Estribo/anomalías , Sinostosis/genética , Huesos Tarsianos/anomalías , Falanges de los Dedos del Pie/anomalías , Anquilosis/complicaciones , Anquilosis/epidemiología , Anquilosis/patología , Huesos del Carpo/patología , Niño , Preescolar , China/epidemiología , Femenino , Deformidades Congénitas del Pie/complicaciones , Deformidades Congénitas del Pie/epidemiología , Deformidades Congénitas del Pie/patología , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Deformidades Congénitas de la Mano/complicaciones , Deformidades Congénitas de la Mano/epidemiología , Deformidades Congénitas de la Mano/patología , Pérdida Auditiva Conductiva/complicaciones , Pérdida Auditiva Conductiva/epidemiología , Pérdida Auditiva Conductiva/patología , Humanos , Masculino , Mutación Missense/genética , Linaje , Fenotipo , Estribo/patología , Sinostosis/complicaciones , Sinostosis/epidemiología , Sinostosis/patología , Huesos Tarsianos/patología , Falanges de los Dedos del Pie/patología , Dedos del Pie/anomalías , Dedos del Pie/patología , Secuenciación del Exoma
13.
Math Biosci Eng ; 16(6): 6454-6466, 2019 07 12.
Artículo en Inglés | MEDLINE | ID: mdl-31698572

RESUMEN

Pediatricians and pediatric endocrinologists utilize Bone Age Assessment (BAA) for in-vestigations pertaining to genetic disorders, hormonal complications and abnormalities in the skeletal system maturity of children. Conventional methods dating back to 1950 were often tedious and suscep-tible to inter-observer variability, and preceding attempts to improve these traditional techniques have inadequately addressed the human expert inter-observer variability so as to significantly refine bone age evaluations. In this paper, an automated and efficient approach with regression convolutional neu-ral network is proposed. This approach automatically exploits the carpal bones as the region of interest (ROI) and performs boundary extraction of carpal bones, then based on the regression convolutional neural network it evaluates the skeletal age from the left hand wrist radiograph of young children. Experiments show that the proposed method achieves an average discrepancy of 2.75 months between clinical and automatic bone age evaluations, and achieves 90.15% accuracy within 6 months from the ground truth for male. Further experimental results with test radiographs assigned an accuracy within 1 year achieved 99.43% accuracy.


Asunto(s)
Determinación de la Edad por el Esqueleto/métodos , Huesos del Carpo/diagnóstico por imagen , Redes Neurales de la Computación , Adolescente , Algoritmos , Huesos del Carpo/patología , Niño , Preescolar , China , Interpretación Estadística de Datos , Femenino , Humanos , Procesamiento de Imagen Asistido por Computador/métodos , Lactante , Recién Nacido , Masculino , Variaciones Dependientes del Observador , Reconocimiento de Normas Patrones Automatizadas , Análisis de Regresión , Reproducibilidad de los Resultados , Rayos X , Adulto Joven
14.
Medicine (Baltimore) ; 98(16): e15262, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-31008967

RESUMEN

RATIONALE: Fibroma of tendon sheath is a rare entity that is typically attached to the tendon sheath. PATIENT CONCERNS: A 43-year-old man presented with a painful mass in his right wrist, which was initially misdiagnosed as an enchondroma. DIAGNOSIS: Fibroma embedded into carpal bones, which exhibited lytic radiographic features similar to those of enchondroma. Excisional biopsy demonstrated spindle-shaped cells and collagen-like stroma. INTERVENTIONS: The patient underwent lesion resection surgery. OUTCOMES: The patient recovered well and showed no signs of recurrence at 6-month follow-up. LESSONS: This case provides valuable insights for hand surgeons. While radiograph is helpful in multiple diseases, histological examination is indispensable for establishment of final diagnosis.


Asunto(s)
Neoplasias Óseas/diagnóstico , Huesos del Carpo/patología , Condroma/diagnóstico , Fibroma/diagnóstico , Neoplasias de los Tejidos Blandos/diagnóstico , Tendones , Adulto , Huesos del Carpo/diagnóstico por imagen , Huesos del Carpo/cirugía , Diagnóstico Diferencial , Errores Diagnósticos , Fibroma/diagnóstico por imagen , Fibroma/patología , Fibroma/cirugía , Humanos , Masculino , Radiografía , Neoplasias de los Tejidos Blandos/diagnóstico por imagen , Neoplasias de los Tejidos Blandos/patología , Neoplasias de los Tejidos Blandos/cirugía , Tendones/diagnóstico por imagen , Tendones/patología , Tendones/cirugía
15.
Int J Paleopathol ; 25: 20-29, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-30927654

RESUMEN

OBJECTIVE: To evaluate and differentially diagnose erosive skeletal lesions located on multiple joints of an individual archaeologically recovered in 2017. MATERIALS: Skeletal remains of a well-preserved skeleton dating to the 12th-13th centuries from the medieval church of San Biagio in Cittiglio (Varese, northern Italy). METHODS: Macroscopic and radiographic imaging. RESULTS: Erosive marginal symmetrical lesions are present on the metatarsophalangeal, metacarpophalangeal and interphalangeal joints of an adult male, aged 55-75 years. Osteolytic changes, in the form of pocket erosions, surface resorptions and pseudocyst formations, are also macroscopically observed on some carpal and tarsal bones and on several large peripheral joints. CONCLUSIONS: A careful differential diagnosis of the lesions and their macroscopic and radiological appearance is suggestive of a case of rheumatoid arthritis-like polyarthropathy. SIGNIFICANCE: This case contributes to the debate regarding the antiquity of erosive polyarthropathies, providing additional evidence for the existence of these diseases in the Old World prior to the European discovery of the Americas. LIMITATIONS: Small sample size limits discussion of the scope of the disease in antiquity. SUGGESTIONS FOR FURTHER RESEARCH: This case highlights the need for further macroscopic, radiographic, and biomolecular studies of pre-modern European skeletal samples to investigate the hypothesized pre-existence of these pathological conditions in Europe prior to 1492.


Asunto(s)
Artritis Reumatoide/historia , Osteoartritis/historia , Anciano , Artritis Reumatoide/diagnóstico por imagen , Artritis Reumatoide/patología , Huesos del Carpo/diagnóstico por imagen , Huesos del Carpo/patología , Historia Medieval , Humanos , Italia , Masculino , Persona de Mediana Edad , Osteoartritis/diagnóstico por imagen , Osteoartritis/patología , Radiografía , Esqueleto/diagnóstico por imagen , Esqueleto/patología , Huesos Tarsianos/diagnóstico por imagen , Huesos Tarsianos/patología
16.
PLoS One ; 14(1): e0211369, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30689656

RESUMEN

BACKGROUND: Carpal tunnel syndrome is a common neuropathy disorder for which surgical treatment consists of release and reconstruction of the flexor retinaculum. Reports of postoperative clinical outcomes after carpal tunnel release with or without flexor retinaculum reconstruction in several studies are controversial. This meta-analysis aimed to compare the efficacy and safety of carpal tunnel release with or without flexor retinaculum reconstruction. METHODS: The PubMed, EMBASE, Web of Science, Ovid, Cochrane Library and Clinical Tri Org databases were searched for randomized controlled trials that compared carpal release with and without transverse carpal ligament reconstruction for carpal tunnel syndrome. Outcomes included postoperative Boston Carpal Tunnel Questionnaire Symptom Severity Scale (SSS), Functional Status Scale (FSS), grip strength and complications. The follow-up time was categorized into short-term (0-3mon) and long-term(>3mon). RESULTS: A total of 7 studies with 613 patients met the inclusion criteria and were analyzed in detail. Statistical analysis showed no significant difference between two groups on postoperative long-term grip strength (MD 5.85, 95% CI -1.05 to 12.76) long-term SSS (MD -0.31, 95% CI -0.75 to 0.13) and occurrence of complications (RR 1.14, 95% CI 0.84 to 1.54), whereas statistically significant difference was found between groups regarding short-term grip strength (MD 1.51, 95% CI 0.86 to 2.17) and long-term FSS (MD -0.34, 95% CI -0.47 to -0.21). CONCLUSION: Carpal tunnel release with flexor retinaculum reconstruction for carpal tunnel syndrome may result in improved long-term functional status while there's no advantage regarding grip strength, symptom severity and safety over individual carpal tunnel release in short- and long-term outcomes.


Asunto(s)
Huesos del Carpo/cirugía , Síndrome del Túnel Carpiano/cirugía , Fuerza de la Mano , Ligamentos Articulares/cirugía , Procedimientos de Cirugía Plástica/métodos , Complicaciones Posoperatorias , Huesos del Carpo/patología , Síndrome del Túnel Carpiano/patología , Estudios de Seguimiento , Humanos , Ligamentos Articulares/patología , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del Tratamiento
17.
Vet Radiol Ultrasound ; 59(6): 715-720, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30395383

RESUMEN

As magnetic resonance imaging (MRI) becomes more readily available and more frequently utilized in the assessment of canine carpal lameness, both normal variations and early pathologic conditions must be recognized to optimize patient care and provide accurate diagnosis. On cross sectional studies of the canine carpus, cyst-like lesions have been detected at the dorsolateral aspect of the intermedioradial carpal bone. The cross-sectional imaging and histologic properties of these lesions have not been described. The purpose of this observational study is to evaluate the MRI and histologic features of these cyst-like lesions in a cohort of clinically sound dogs. It was hypothesized that the lesions would show features similar to intraosseous ganglion cysts of the human wrist. Twenty-five cadaveric canine carpi were obtained and a total of 13 lesions were detected on MRI. Based on MRI, six carpi with lesions of varying size and one normal carpus were submitted for histological evaluation. Five of the abnormal carpi had nonarticular cyst-like lesions; one specimen with a positive magnetic resonance image for a cyst-like lesion had no cyst-like lesion on histology. Conspicuity of a medium-size lesion as evaluated on radiographs was poor. Given the presence of these nonarticular cyst-like lesions in a population of clinically sound patients, their clinical importance is uncertain. The development of these lesions may relate to altered mechanics or genetic predispositions, requiring additional study.


Asunto(s)
Quistes Óseos/veterinaria , Huesos del Carpo/diagnóstico por imagen , Carpo Animal/diagnóstico por imagen , Interpretación de Imagen Asistida por Computador/estadística & datos numéricos , Imagen por Resonancia Magnética/veterinaria , Animales , Quistes Óseos/diagnóstico por imagen , Quistes Óseos/patología , Cadáver , Huesos del Carpo/patología , Carpo Animal/patología , Estudios de Cohortes , Perros , Imagen por Resonancia Magnética/instrumentación , Masculino
18.
Acta Chir Orthop Traumatol Cech ; 85(2): 120-124, 2018.
Artículo en Checo | MEDLINE | ID: mdl-30295598

RESUMEN

PURPOSE OF THE STUDY This study aims to evaluate the results of patients treated by proximal row carpectomy at a follow-up of at least 5 years after the surgery. MATERIAL AND METHODS A total of 25 patients were treated by proximal row carpectomy for degenerative changes of the wrist as a consequence of the previous trauma or avascular necrosis of the lunate bone, of whom 21 patients underwent a follow-up examination at least 5 years postoperatively. Proximal row carpectomy was indicated in 15 patients for SLAC wrist, in 4 patients for avascular necrosis of the lunate bone, in 1 patient for SNAC wrist, and in 1 patient for inveterate dislocation of the wrist. The follow-up clinical and radiological examinations were performed at least 5 years after the surgery. The range of wrist motion, grip strength, presence of pain at rest or pain under loads, total clinical score according to the Green and O'Brien scoring system, patient satisfaction with the outcome of surgery were assessed. By fluoroscopy the range of wrist motion, degenerative changes of the radiocapitate joint, and translation of the capitate bone with respect to the distal radius were evaluated. RESULTS Postoperative improvements in the range of motion and grip strength were confirmed. Also, the pain relief at rest and under loads was achieved. Five years after the surgery, most of the patients (85.6%) reported an overall improvement. The total clinical score according to the Green and O'Brien scoring system improved from 35.8 preoperatively to 63.1 postoperatively. DISCUSSION The advantage of this procedure is a low percentage of complications, relative technical simplicity, maintenance of functional motion of the wrist, satisfactory grip strength, and pain relief. There are no complications related to the implant, no risk of a non-union. CONCLUSIONS As shown by our results obtained 5 years after the surgery as well as the published data, in the indicated cases the proximal row carpectomy is an appropriate surgical technique to treat the degenerative changes of the wrist. In most of the patients, favourable functional results and pain relief can be expected. Key words:proximal row carpectomy, SLAC wrist, SNAC wrist, avascular necrosis of the lunate bone, dislocation of the wrist.


Asunto(s)
Huesos del Carpo/patología , Huesos del Carpo/cirugía , Procedimientos Ortopédicos/métodos , Artralgia/prevención & control , Huesos del Carpo/diagnóstico por imagen , Huesos del Carpo/lesiones , Estudios de Seguimiento , Fuerza de la Mano , Humanos , Luxaciones Articulares/cirugía , Hueso Semilunar/patología , Hueso Semilunar/cirugía , Necrosis , Procedimientos Ortopédicos/efectos adversos , Complicaciones Posoperatorias , Radiografía , Rango del Movimiento Articular , Resultado del Tratamiento
19.
BMC Med Genet ; 19(1): 164, 2018 09 12.
Artículo en Inglés | MEDLINE | ID: mdl-30208859

RESUMEN

BACKGROUND: Multicentric carpotarsal osteolysis syndrome (MCTO) is characterized by progressive destruction and disappearance of the carpal and tarsal bones associated with nephropathy. MCTO is caused by loss-of-function mutations in the MAF bZIP transcription factor B (MAFB) gene. CASE PRESENTATION: This report describes three unrelated patients with MAFB mutations, including two male and one female patient. Osteolytic lesions in the carpal and tarsal bones were detected at 2 years, 12 years, and 14 months of age, respectively. Associated proteinuria was noted at 4 years, 12 years, and 3 months of age, respectively. Kidney biopsy was performed in two of them and revealed focal segmental glomerulosclerosis (FSGS). One patient showed progression to end-stage renal disease, that is by 1 year after the detection of proteinuria. The second patient had persistent proteinuria but maintained normal renal function. In the third patient, who did not undergo a kidney biopsy, the proteinuria disappeared spontaneously. The bony lesions worsened progressively in all three patients. Mutational study of MAFB revealed three different mutations, two novel mutations [c.183C > A (p.Ser61Arg) and c.211C > G (p.Pro71Ala)] and one known mutation [c.212C > T (p.Pro71Leu)]. CONCLUSION: We report three cases with MCTO and two novel MAFB mutations. The renal phenotypes were different among the three patients, whereas progressive worsening of the bony lesions was common in all patients. We also confirmed FSGS to be an early renal pathologic finding in two cases. A diagnosis of MCTO should be considered in patients with progressive bone loss concentrated primarily in the carpal and tarsal bones and kidney involvement, such as proteinuria.


Asunto(s)
Glomeruloesclerosis Focal y Segmentaria/genética , Mutación con Pérdida de Función , Factor de Transcripción MafB/genética , Osteólisis/genética , Proteinuria/genética , Adolescente , Secuencia de Bases , Huesos del Carpo/metabolismo , Huesos del Carpo/patología , Preescolar , Análisis Mutacional de ADN , Progresión de la Enfermedad , Femenino , Expresión Génica , Glomeruloesclerosis Focal y Segmentaria/complicaciones , Glomeruloesclerosis Focal y Segmentaria/metabolismo , Glomeruloesclerosis Focal y Segmentaria/patología , Humanos , Riñón/metabolismo , Riñón/patología , Factor de Transcripción MafB/metabolismo , Masculino , Osteólisis/complicaciones , Osteólisis/metabolismo , Osteólisis/patología , Proteinuria/complicaciones , Proteinuria/metabolismo , Proteinuria/patología , Huesos Tarsianos/metabolismo , Huesos Tarsianos/patología , Adulto Joven
20.
Medicine (Baltimore) ; 97(38): e12413, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-30235715

RESUMEN

RATIONALE: Preiser disease or avascular necrosis (AVN) of the scaphoid causes intolerable wrist pain and malalignment of the carpal bones. In previously reported cases, patients have had a history of steroid use for systemic illness such as autoimmune hemolytic anemia, systemic lupus erythematosus, or renal transplantation, or have had other risk factors, such as smoking, alcoholism, or infection. In particular, systemic glucocorticoid therapy has been most commonly associated with the disease. Although there are reports of AVN of the scaphoid induced by systemic glucocorticoids, no prior report has associated AVN of the carpal bones with repeated local injections of glucocorticoids. PATIENT CONCERNS: We present a case in which it was strongly suspected that AVN of the scaphoid was induced by repeated local glucocorticoid injections. The patient had no history of excessive alcohol use, smoking, or trauma, except for local repeated steroid injections. DIAGNOSES: Initially, she had diagnosed with de Quervain's disease and was treated by repeated local glucocorticoid injections followed by surgery for de Quervain's disease. Five years after surgery for de Quervain's disease, the patient presented at our hospital with sudden onset of intolerable pain in her right wrist without a history of trauma. In spite of nonsurgical treatment with rest, immobilization, analgesia, and surgery, her wrist pain was not improved. After further repeated local steroid injections in her wrist, radiographs, and magnetic resonance imaging of her wrist showed the AVN of the scaphoid. INTERVENTIONS: Surgery was performed and the fragmented proximal scaphoid and the entire lunate were resected. OUTCOMES: The diagnosis was confirmed according to the histopathological examination of the proximal scaphoid bone, which showed the characteristic of AVN of the scaphoid. At follow-up evaluation, radiographs of the right wrist showed no progression of osteoarthritis. The patient had no tenderness or residual pain at the wrist and had no desire to pursue additional surgery. LESSONS: We have presented a case with AVN of the scaphoid, which was strongly suspected to be associated with the repeated local steroid injections. Further studies are required to more fully elucidate the association between AVN of the scaphoid and repeated local steroid injections.


Asunto(s)
Huesos del Carpo/patología , Enfermedad de De Quervain/diagnóstico , Glucocorticoides/efectos adversos , Osteonecrosis/inducido químicamente , Osteonecrosis/patología , Hueso Escafoides/patología , Huesos del Carpo/irrigación sanguínea , Huesos del Carpo/diagnóstico por imagen , Huesos del Carpo/cirugía , Enfermedad de De Quervain/tratamiento farmacológico , Femenino , Glucocorticoides/administración & dosificación , Glucocorticoides/uso terapéutico , Humanos , Inyecciones , Imagen por Resonancia Magnética/métodos , Persona de Mediana Edad , Osteonecrosis/diagnóstico por imagen , Osteonecrosis/cirugía , Dolor/diagnóstico , Dolor/etiología , Radiografía/métodos , Hueso Escafoides/irrigación sanguínea , Hueso Escafoides/diagnóstico por imagen , Hueso Escafoides/cirugía , Resultado del Tratamiento , Articulación de la Muñeca/patología
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...