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1.
Mol Genet Metab ; 142(1): 108469, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38564972

RESUMO

The trafficking protein particle (TRAPP) complex is a multisubunit protein complex that functions as a tethering factor involved in intracellular trafficking. TRAPPC11, a crucial subunit of this complex, is associated with pathogenic variants that cause a spectrum of disease, which can range from a limb girdle muscular dystrophy (LGMD) to developmental disability with muscle disease, movement disorder and global developmental delay (GDD)/intellectual disability (ID), or even a congenital muscular dystrophy (CMD). We reviewed the phenotype of all reported individuals with TRAPPC11-opathies, including an additional Mexican patient with novel compound heterozygous missense variants in TRAPPC11 (c.751 T > C and c.1058C > G), restricted to the Latino population. In these 54 patients muscular dystrophy signs are common (early onset muscle weakness, increased serum creatine kinase levels, and dystrophic changes in muscle biopsy). They present two main phenotypes, one with a slowly progressive LGMD with or without GDD/ID (n = 12), and another with systemic involvement characterized by short stature, GDD/ID, microcephaly, hypotonia, poor speech, seizures, cerebral atrophy, cerebellar abnormalities, movement disorder, scoliosis, liver disease, and cataracts (n = 42). In 6 of them CMD was identified. Obstructive hydrocephaly, retrocerebellar cyst, and talipes equinovarus found in the individual reported here has not been described in TRAPPC11 deficiency. As in previous patients, membrane trafficking assays in our patient showed defective abnormal endoplasmic reticulum-Golgi transport as well as decreased expression of LAMP2, and ICAM-1 glycoproteins. This supports previous statements that TRAPPC11-opathies are in fact a congenital disorder of glycosylation (CDG) with muscular dystrophy.


Assuntos
Proteínas de Transporte Vesicular , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Deficiências do Desenvolvimento/genética , Deficiências do Desenvolvimento/patologia , Distrofia Muscular do Cíngulo dos Membros/genética , Distrofia Muscular do Cíngulo dos Membros/patologia , Distrofia Muscular do Cíngulo dos Membros/diagnóstico , Mutação de Sentido Incorreto , Fenótipo , Proteínas de Transporte Vesicular/genética , Relatos de Casos como Assunto
2.
Am J Med Genet A ; : e63867, 2024 Sep 13.
Artigo em Inglês | MEDLINE | ID: mdl-39271919

RESUMO

Talipes equinovarus, also called clubfoot, is a relatively common congenital defect affecting approximately one in every 1000 live births. Most cases of clubfoot are expected to be idiopathic and unrelated to an underlying genetic syndrome. In approximately 20% of cases, a clear genetic etiology is identified. Here we present two cases of bilateral clubfoot identified via fetal ultrasound in the first trimester associated with osteogenesis imperfecta diagnosed in the second trimester. Both fetuses presented with multiple fractures and were identified to have loss-of-function variants in COL1A1. An association between clubfeet in the first trimester and osteogenesis imperfecta has not been previously reported to the best of our knowledge, which leads to unique opportunities for prompt diagnosis, genetic counseling and testing, and appropriate management.

3.
Acta Obstet Gynecol Scand ; 103(1): 51-58, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37942915

RESUMO

INTRODUCTION: The aim of this study is to evaluate the benefit of cytogenetic testing by amniocentesis after an ultrasound diagnosis of isolated bilateral talipes equinovarus. MATERIAL AND METHODS: This multicenter observational retrospective study includes all prenatally diagnosed cases of isolated bilateral talipes equinovarus in five fetal medicine centers from 2012 through 2021. Ultrasound data, amniocentesis results, biochemical analyses of amniotic fluid and parental blood samples to test neuromuscular diseases, pregnancy outcomes, and postnatal outcomes were collected for each patient. RESULTS: In all, 214 fetuses with isolated bilateral talipes equinovarus were analyzed. A first-degree family history of talipes equinovarus existed in 9.8% (21/214) of our cohort. Amniocentesis was proposed to 86.0% (184/214) and performed in 70.1% (129/184) of cases. Of the 184 karyotypes performed, two (1.6%) were abnormal (one trisomy 21 and one triple X syndrome). Of the 103 microarrays performed, two (1.9%) revealed a pathogenic copy number variation (one with a de novo 18p deletion and one with a de novo 22q11.2 deletion) (DiGeorge syndrome). Neuromuscular diseases (spinal muscular amyotrophy, myasthenia gravis, and Steinert disease) were tested for in 56 fetuses (27.6%); all were negative. Overall, 97.6% (165/169) of fetuses were live-born, and the diagnosis of isolated bilateral talipes equinovarus was confirmed for 98.6% (139/141). Three medical terminations of pregnancy were performed (for the fetuses diagnosed with Down syndrome, DiGeorge syndrome, and the 18p deletion). Telephone calls (at a mean follow-up age of 4.5 years) were made to all parents to collect medium-term and long-term follow-up information, and 70 (33.0%) families were successfully contacted. Two reported a rare genetic disease diagnosed postnatally (one primary microcephaly and one infantile glycine encephalopathy). Parents did not report any noticeably abnormal psychomotor development among the other children during this data collection. CONCLUSIONS: Despite the low rate of pathogenic chromosomal abnormalities diagnosed prenatally after this ultrasound diagnosis, the risk of chromosomal aberration exceeds the risks of amniocentesis. These data may be helpful in prenatal counseling situations.


Assuntos
Pé Torto Equinovaro , Doenças Neuromusculares , Pé Torto , Gravidez , Feminino , Criança , Humanos , Pré-Escolar , Pé Torto Equinovaro/diagnóstico por imagem , Pé Torto Equinovaro/genética , Amniocentese , Estudos Retrospectivos , Variações do Número de Cópias de DNA , Diagnóstico Pré-Natal/métodos , Aberrações Cromossômicas , Líquido Amniótico
4.
BMC Musculoskelet Disord ; 25(1): 425, 2024 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-38822269

RESUMO

BACKGROUND: The Ponseti method for treating clubfoot consists of initial treatment with serial casting accompanied by achillotenotomy if needed, followed by the maintenance phase including treatment with a foot abduction orthosis (FAO) for at least four years. This study aimed to examine the duration, course, and outcome of orthotic treatment in children with clubfoot. METHODS: 321 children with clubfoot, born between 2015 and 2017, registered in the Swedish Pediatric Orthopedic Quality Register (SPOQ), were included in this prospective cohort study. Data on deformity characteristics and orthotic treatment were extracted. For children with bilateral clubfoot, one foot was included in the analysis. RESULTS: Of the 288 children with isolated clubfoot, 274 children (95.5%) were prescribed an FAO, and 100 children (35%) changed orthosis type before 4 years of age. Of the 33 children with non-isolated clubfoot, 25 children (76%) were prescribed an FAO, and 21 children (64%) changed orthosis type before 4 years of age. 220 children with isolated clubfoot (76%), and 28 children with non-isolated clubfoot (84%) continued orthotic treatment until 4 years of age or longer. Among children with isolated clubfoot, children ending orthotic treatment before 4 years of age (n = 63) had lower Pirani scores at birth compared to children ending orthotic treatment at/after 4 years of age (n = 219) (p = 0.01). It was more common to change orthosis type among children ending orthotic treatment before 4 years of age (p = 0.031). CONCLUSIONS: The majority of children with clubfoot in Sweden are treated with an FAO during the maintenance phase. The proportion of children changing orthosis type was significantly greater and the Pirani score at diagnosis was lower significantly among children ending orthotic treatment before 4 years of age. Long-term follow-up studies are warranted to fully understand how to optimize, and individualize, orthotic treatment with respect to foot involvement and severity of deformity. LEVEL OF EVIDENCE: II.


Assuntos
Pé Torto Equinovaro , Órtoses do Pé , Sistema de Registros , Humanos , Pé Torto Equinovaro/terapia , Suécia/epidemiologia , Masculino , Feminino , Pré-Escolar , Seguimentos , Resultado do Tratamento , Estudos Prospectivos , Lactente , Criança , Fatores de Tempo , Moldes Cirúrgicos/tendências , Aparelhos Ortopédicos , Tenotomia/métodos , Tenotomia/tendências
5.
BMC Musculoskelet Disord ; 25(1): 604, 2024 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-39080596

RESUMO

BACKGROUND: Clubfoot is one of the most common congenital malformations, but it is also one of the most neglected public health problems among less than five-year-old children, mainly in middle- and low-income countries. Approximately 80% of clubfoot cases are found in low- and middle-income countries. In this study setting, no epidemiological studies have been conducted to assess clubfoot deformity. Due to this gap, the study aimed to assess prevalence, and pattern of congenital club foot among less than 5-year-old children. MATERIALS AND METHODS: An institutional-based cross-sectional study was carried out at Black Lion Specialized Hospital at the pediatric orthopedic clinic. The sample size was 261 to determine the prevalence and pattern of congenital clubfoot. Terms like frequency, percentage, and mean were used for data presentation. RESULT: A total of 36,303 pediatric patients visited Black Lion Specialized Hospital during the study period, and clubfoot prevalence was 7.2 per 1000. The largest subclassification of congenital clubfoot was idiopathic clubfoot, which accounted for 6.2 per 1000, whereas syndromic clubfoot was 0.3 per 1000, and neuropathic clubfoot was shared at 0.36 per 1000. Most of the cases in this study were bilateral clubfoot, with males having more dominance. CONCLUSION: In the area under investigation, a significant prevalence of congenital clubfoot was observed, especially among male children. The majority of cases were bilateral, with idiopathic clubfoot being the dominant form.


Assuntos
Pé Torto Equinovaro , Humanos , Pé Torto Equinovaro/epidemiologia , Estudos Transversais , Prevalência , Masculino , Feminino , Pré-Escolar , Etiópia/epidemiologia , Lactente
6.
BMC Musculoskelet Disord ; 24(1): 784, 2023 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-37789312

RESUMO

BACKGROUND: Congenital talipes equinovarus (clubfoot) is a common musculoskeletal anomaly, with a suspected multifactorial etiopathogenesis. Herein, we used publicly available data to ascertain liveborn infants with clubfoot delivered in Denmark during 1994-2021, and to classify co-occurring congenital anomalies, estimate annual prevalence, and compare clubfoot occurrence with maternal smoking rates, a commonly reported risk factor. Characterizing this nationwide, liveborn cohort provides a population-based resource for etiopathogenic investigations and life course surveillance. METHODS: This case-cohort study used data from the Danish National Patient Register and Danish Civil Registration System, accessed through the publicly available Danish Biobank Register, to identify 1,315,282 liveborn infants delivered during 1994-2021 in Denmark to Danish parents. Among these, 2,358 infants (65.1% male) were ascertained with clubfoot and classified as syndromic (co-occurring chromosomal, genetic, or teratogenic syndromes) and nonsyndromic (isolated or co-occurring multiple congenital anomalies [MCA]). Annual prevalence estimates and corresponding 95% confidence intervals (CIs) for children with nonsyndromic clubfoot were estimated using Poisson regression and compared with population-based, maternal annual smoking rates obtained from publicly available resources. RESULTS: Infants most often presented with nonsyndromic clubfoot (isolated = 88.6%; MCA = 11.4%); limb and heart anomalies were the most frequently identified MCAs. Prevalence (per 1,000 liveborn infants) was 1.52 (CI 1.45-1.58) for isolated and 0.19 (CI 0.17-0.22) for MCA clubfoot. Prevalence estimates for both isolated and MCA clubfoot remained relatively stable during the study period, despite marked decreases in population-based maternal smoking rates. CONCLUSIONS: From 1994 to 2021, prevalence of nonsyndromic clubfoot in Denmark was relatively stable. Reduction in population-level maternal smoking rates did not seem to impact prevalence estimates, providing some support for the suspected multifactorial etiopathogenesis of this anomaly. This nationwide, liveborn cohort, ascertained and clinically characterized using publicly available data from the Danish Biobank Register, provides a population-based clinical and biological resource for future etiopathogenic investigations and life course surveillance.


Assuntos
Pé Torto Equinovaro , Lactente , Criança , Humanos , Masculino , Feminino , Pé Torto Equinovaro/epidemiologia , Estudos de Coortes , Prevalência , Fatores de Risco , Dinamarca/epidemiologia
7.
Int Orthop ; 47(4): 1109-1114, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36715714

RESUMO

PURPOSE: There is however gross ambiguity regarding the use of term "foot abduction" in clubfoot treatment. We measured below defined angles at different stages of clubfoot treatment to decipher their precise interpretation. METHODS: In a prospective evaluation of 25 unilateral clubfeet in infants' age less than six months treated with Ponseti technique, clinical leg foot and thigh foot angle were measured at talar head reduction (LHT0), pre-tenotomy, and post-tenotomy stage. A "normal" reference was available in the form of measurements of contralateral limb. RESULTS: Talar head (LHT0) was reduced at mean leg foot angle of 26 degrees. The corresponding pre- and post-tenotomy angles were 42.6 and 50.0 degrees, respectively. The reference leg foot angles for contralateral limb were 49.8 degrees. The thigh foot angle for LHT0, pre-tenotomy, post-tenotomy, and contralateral side were, respectively, 39.2, 56, 68, and 65.6 degrees. There was an additional tibial external rotation component of mean 13.4 degrees (SD 4.5) in the thigh foot angle when compared to the leg foot angle at tenotomy. This increased to 18 degrees (SD 3.4) post-tenotomy. CONCLUSIONS: The study suggested that the foot abduction described in the "Ponseti Manual" probably intends thigh foot rather than leg foot angles. There was a significant difference in the angles when talar head reduced and tenotomy was decided. The foot abduction is an ambiguous term which should be replaced by the more specific leg or thigh foot abduction angle.


Assuntos
Pé Torto Equinovaro , Lactente , Humanos , Pé Torto Equinovaro/cirurgia , Resultado do Tratamento , Moldes Cirúrgicos , Pé/cirurgia , Tenotomia/métodos
8.
J Foot Ankle Surg ; 62(2): 218-221, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35868981

RESUMO

Although Dimeglio and Pirani scores are frequently employed to rate the severities of clubfoot and to evaluate treatment outcomes, it is unclear if these scores predict relapse after treatment. Ankle dorsiflexion has been suggested in recent years to be a promising predictor of relapse. The aim of this study was to investigate ankle dorsiflexion and Dimeglio and Pirani scores in predicting the relapse of clubfoot after treatment with the Ponseti method. We included patients with clubfoot previously treated by the Ponseti method, and retrospectively analyzed their initial ankle dorsiflexion, Pirani and Dimeglio scores, number of castings, and the occurrence of relapse. We analyzed 218 feet of 176 infants with clubfoot who showed an incidence of relapse of 17.0% (30/176). The mean initial Pirani and Dimeglio scores of the feet showing recurrence were significantly higher than individuals with non-recurrence (p < .001 each). We observed a robust association between Pirani and Dimeglio scores and the recurrence of clubfoot at the last follow-up (γ = 0.53, p = .001). In contrast, ankle dorsiflexion was negatively correlated with recurrence of clubfoot (γ = -0.21, p = .001). Dimeglio scores significantly predicted the recurrence of clubfoot (p = .014). Receiver operating characteristic curve analysis exhibited slightly better performance regarding the Dimeglio score relative to the Pirani score and ankle dorsiflexion in predicting recurrence. Ankle dorsiflexion and Pirani and Dimeglio scores were related to recurrence in patients with clubfoot. However, the Dimeglio score reflected superior accuracy in predicting the prognosis of clubfoot treated with the Ponseti method.


Assuntos
Pé Torto Equinovaro , Lactente , Humanos , Pé Torto Equinovaro/cirurgia , Estudos Retrospectivos , Tornozelo , , Resultado do Tratamento , Recidiva , Moldes Cirúrgicos , Tenotomia/métodos
9.
Foot Ankle Surg ; 29(4): 355-360, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37031009

RESUMO

INTRODUCTION: Distal Anterior Tibial Guided Growth has been shown to be useful to correct recurrent equinus deformity after open surgical release for Congenital Talipes Equinovarus. This has not been evaluated in a recurrence after use of the Ponseti method, where soft tissue releases are currently understood as the mainstay of treatment. METHODS: Patients with recurrence of equinus component of CTEV, who underwent DATGG with at least 6-month follow-up were identified retrospectively. The criteria for performing this procedure were (1) equinus not correctable to neutral passively (2) the feeling of a bony block to dorsiflexion clinically as evidenced by a supple Achilles' tendon at maximum dorsiflexion and (3)a finding of a flat-top talus radiologically. Successful treatment was defined by the achievement of heel strike on observation of gait. Details of the index procedure including concurrent procedures, any complications and their treatment, past and subsequent treatment episodes were retrieved from electronic patient records. Pre-op and last available post-op X-rays were evaluated for change in the anterior distal tibial angle and for flat-top talus deformity. RESULTS: We identified 22 feet in 16 patients, with an average follow-up was 25 (8.8-47.3) months. The mean aDTA changed from 88.9 (82.3-94.5) to 77.0 (65.0-83.9) degrees, which was statistically significant (p < 0.0001) using the Paired t-test. Clinically, 17 feet (77 %) obtained a plantigrade foot with a normal heel strike. Complications were identified in 5 feet and include staple migration, oversized staple, superficial infection, iatrogenic varus deformity. Recurrence after completed treatment was noted in one foot. CONCLUSION: This procedure should form a part of the armamentarium of procedures for treating equinus component of CTEV recurrences even in feet not treated previously by open procedures. When used in patients without significant surgical scarring it helps to address bony and soft-tissue factors, leading to effective treatment. LEVEL OF EVIDENCE: Therapeutic Level IV.


Assuntos
Pé Torto Equinovaro , Pé Equino , Humanos , Lactente , Pé Torto Equinovaro/diagnóstico por imagem , Pé Torto Equinovaro/cirurgia , Pé Equino/etiologia , Pé Equino/cirurgia , Estudos Retrospectivos , , Resultado do Tratamento , Moldes Cirúrgicos
10.
Int Orthop ; 46(1): 125-132, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34173015

RESUMO

PURPOSE: To evaluate the outcomes of Ilizarov external fixator (IEF) and minimal invasive surgery (MIS) in correction of neglected club foot (NCF). METHODS: Thirty-seven feet in 24 child, between five and 15 years old were diagnosed as NCF. All were treated with Achilles tendon lengthening (ATL) and IEF for gradual correction. After IEF removal, cast was applied for six weeks to maintain correction of the deformity. RESULTS: There were 20 boys and four girls. Seven children had left (Lt), four children had right (Rt) while 13 children had bilateral foot deformity. The mean age at surgery was 10.3 (range 5-15) years with an average follow-up of 32.5 (range 24-96) months. All feet were graded as severe according to Pirani score. All feet were corrected after an average six weeks in IEF. After two years follow-up, 23 feet (16 patients) showed good results, five feet (3 patients) showed fair results and four feet (2 patients) had Rt side foot fair result while the Lt foot had good result in both patients. Five feet (3 patients) showed poor results. Eight patients had pin site infection. One case had infected skin and subcutaneous tissue and needed debridement. Two cases developed skin sloughing, changes in color and needed close follow-up. CONCLUSION: We recommend combined IEF and MIS as a suitable, efficient and successful salvage procedure in the management of severe idiopathic NCF in children especially in developing countries.


Assuntos
Pé Torto Equinovaro , Técnica de Ilizarov , Adolescente , Criança , Pré-Escolar , Pé Torto Equinovaro/diagnóstico , Pé Torto Equinovaro/cirurgia , Fixadores Externos , Feminino , , Humanos , Lactente , Masculino , Resultado do Tratamento
11.
J Foot Ankle Surg ; 61(4): 730-734, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34896010

RESUMO

A retrospective comparative study was conducted, aiming to identify factors associated with dropout from clubfoot treatment by Ponseti method in low- and middle-income countries. A prospectively gathered database of patients who received treatment at a high-volume urban clubfoot clinic over 6 years was queried for dropouts. A "dropout" was identified as any child that had not had a visit within 3 weeks of casting, 4 weeks of tenotomy or 6 months of brace follow-up. The second part of the study was a telephonic interview with caregivers of the identified dropouts to ascertain their reasons for discontinuing treatment. Of the 965 patients treated during the study period, there were 155 (16.06%) dropouts-137 (88.38%) during bracing phase and 18 (11.62%) during casting phase. Age at presentation was significantly higher among the dropouts as compared to those who did not dropout (median 9.5 and 7 months for casting and bracing dropouts respectively versus 3.5 months for regular follow-ups, p < .001). No significant correlation was found between patient dropout and sex (p = .061), or laterality (p = .071). Thirty-seven caregivers (23.8%) could be contacted telephonically; including 6 casting and 31 bracing dropouts. The most commonly cited reason for dropout from treatment was lack of family support (75.7%), followed by distance to the clinic (59.5%) and unavailability of transport (54.1%). Sixteen caregivers (43.2%) dropped out on account of migration to another town/state. Maintenance of a meticulous registry with regular update of caregivers' contact details, and interventions to mitigate the identified hurdles can help in reducing treatment dropouts.


Assuntos
Pé Torto Equinovaro , Cuidadores , Moldes Cirúrgicos , Criança , Pé Torto Equinovaro/cirurgia , Humanos , Lactente , Estudos Retrospectivos , Tenotomia/métodos , Resultado do Tratamento
12.
Am J Med Genet A ; 185(7): 2198-2203, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33913579

RESUMO

Filippi syndrome (MIM #272440), one of the craniodigital syndromes, is a rare genetic entity with autosomal recessive inheritance and characterized by pre- and postnatal growth retardation, microcephaly, distinctive facial appearance, developmental delay/intellectual disability, and variable syndactylies of the fingers and toes. In this report, a further female patient of Filippi syndrome who additionally had a unilateral congenital talipes equinovarus (CTEV), a feature not previously recorded, is described. Genetic testing revealed a novel homozygous frameshift pathogenic variant (c.552_555delCAAA, p.Asn184Lysfs*8) in CKAP2L and thus confirmed the diagnosis of Filippi syndrome. We hope that the newly recognized feature (CTEV) will contribute to expand the clinical spectrum of this extremely rare condition. In view of the paucity of reported cases, the full spectrum of clinical findings of Filippi syndrome necessitates obviously further affected individuals/pedigrees delineation in order to elucidate the etiological and phenotypic aspects of this orphan disease appropriately.


Assuntos
Anormalidades Múltiplas/genética , Pé Torto Equinovaro/genética , Proteínas do Citoesqueleto/genética , Transtornos do Crescimento/genética , Deficiência Intelectual/genética , Microcefalia/genética , Sindactilia/genética , Anormalidades Múltiplas/fisiopatologia , Pré-Escolar , Pé Torto Equinovaro/fisiopatologia , Fácies , Feminino , Mutação da Fase de Leitura/genética , Transtornos do Crescimento/fisiopatologia , Humanos , Lactente , Recém-Nascido , Deficiência Intelectual/fisiopatologia , Masculino , Microcefalia/fisiopatologia , Sindactilia/fisiopatologia , Dedos do Pé/fisiopatologia
13.
Connect Tissue Res ; 62(5): 554-569, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-32951485

RESUMO

AIM: Clubfoot is a congenital deformity affecting the musculoskeletal system, resulting in contracted and stiff tissue in the medial part of the foot. Minoxidil (MXD) has an inhibitory effect on lysyl hydroxylase, which influences the quality of extracellular matrix crosslinking, and could therefore be used to reduce the stiffness and to improve the flexibility of the tissue. We assessed the in vitro antifibrotic effects of minoxidil on clubfoot-derived cells. METHODS: Cell viability and proliferation were quantified by xCELLigence, MTS, and LIVE/DEAD assays. The amount of collagen I deposited into the extracellular matrix was quantified using immunofluorescence with subsequent image segmentation analysis, hydroxyproline assay, and Second Harmonic Generation imaging. Extracellular matrix contraction was studied in a 3D model of cell-populated collagen gel lattices. RESULTS: MXD concentrations of 0.25, 0.5, and 0.75 mM inhibited the cell proliferation in a concentration-dependent manner without causing a cytotoxic effect. Exposure to ≥0.5 mM MXD resulted in a decrease in collagen type I accumulation after 8 and 21 days in culture. Changes in collagen fiber assembly were observed by immunofluorescence microscopy and nonlinear optical microscopy (second harmonic generation). MXD also inhibited the contraction of cell-populated collagen lattices (0.5 mM by 22%; 0.75 mM by 28%). CONCLUSIONS: Minoxidil exerts an in vitro inhibitory effect on the cell proliferation, collagen accumulation, and extracellular matrix contraction processes that are associated with clubfoot fibrosis. This study provides important preliminary results demonstrating the potential relevance of MXD for adjuvant pharmacological therapy in standard treatment of relapsed clubfoot.


Assuntos
Pé Torto Equinovaro , Colágeno , Colágeno Tipo I , Tratamento Conservador , Humanos , Minoxidil/farmacologia
14.
Adv Exp Med Biol ; 1348: 251-264, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34807423

RESUMO

Loeys-Dietz syndrome is an autosomal dominant aortic aneurysm syndrome characterized by multisystemic involvement. The most typical clinical triad includes hypertelorism, bifid uvula or cleft palate and aortic aneurysm with tortuosity. Natural history is significant for aortic dissection at smaller aortic diameter and arterial aneurysms throughout the arterial tree. The genetic cause is heterogeneous and includes mutations in genes encoding for components of the transforming growth factor beta (TGFß) signalling pathway: TGFBR1, TGFBR2, SMAD2, SMAD3, TGFB2 and TGFB3. Despite the loss of function nature of these mutations, the patient-derived aortic tissues show evidence of increased (rather than decreased) TGFß signalling. These insights offer new options for therapeutic interventions.


Assuntos
Dissecção Aórtica , Síndrome de Loeys-Dietz , Humanos , Síndrome de Loeys-Dietz/diagnóstico , Síndrome de Loeys-Dietz/genética , Mutação , Receptores de Fatores de Crescimento Transformadores beta/genética
15.
Int Orthop ; 45(12): 3139-3146, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34313808

RESUMO

PURPOSE: Idiopathic congenital talipes equinovarus is the most commonly encountered congenital deformity of the foot. Ponseti technique of manipulation is the treatment of choice. The Pirani classification is a reliable scoring system for clinical evaluation of clubfeet. The role of radiographic parameters in the evaluation and treatment of clubfeet is still controversial. The aim of this study was to evaluate the correlation of radiological parameters with clinical correction in patients with idiopathic clubfeet undergoing correction using Ponseti method. METHODS: Between March 2018 and March 2019, 42 feet in 27 patients with idiopathic clubfeet were treated in our hospital. We used the Pirani scoring system for clinical evaluation. Anteroposterior and lateral views of the feet were taken before and after correction and at the last follow-up. The anteroposterior view was evaluated for the talocalcaneal angle and talo-first metatarsal angle, while the lateral view was only evaluated for the talocalcaneal angle. RESULTS: Twelve were boys (44.4%), and 15 were girls (55.6%). The deformity was bilateral in 15 patients (55.6%) and unilateral in 12 patients (44.4%). The average age was three months. According to the Pirani score, the mean Pirani Total score was 4.4 before correction and reduced to 0.4 after correction. The mean talocalcaneal angle in anteroposterior and lateral views was 15.1° and 7.8° before correction, increased to 32.7° and 31.8° after correction, respectively. The mean talocalcaneal index increased from 23.2 before correction to 64.5 after correction. The mean talo-first metatarsal angle in anteroposterior view improved from 25.7° before correction to - 1.6° after correction. The relation between the differences in Pirani scores before and after correction and the differences in measured radiographic parameters before and after correction revealed a statistically significant correlation. CONCLUSION: Radiographic parameters showed a statistically significant correlation with the clinical outcome. Thus, evaluation of clubfeet correction treated by Ponseti technique can rely mainly on clinical scores with limited utilization of radiological assessment.


Assuntos
Pé Torto Equinovaro , Pé Torto Equinovaro/diagnóstico por imagem , Pé Torto Equinovaro/cirurgia , Feminino , Humanos , Lactente , Masculino , Radiografia , Tenotomia , Resultado do Tratamento
16.
Int J Mol Sci ; 22(21)2021 Nov 02.
Artigo em Inglês | MEDLINE | ID: mdl-34769331

RESUMO

Congenital clubfoot is a complex musculoskeletal deformity, in which a stiff, contracted tissue forms in the medial part of the foot. Fibrotic changes are associated with increased collagen deposition and lysyl oxidase (LOX)-mediated crosslinking, which impair collagen degradation and increase the tissue stiffness. First, we studied collagen deposition, as well as the expression of collagen and the amount of pyridinoline and deoxypyridinoline crosslinks in the tissue of relapsed clubfoot by immunohistochemistry, real-time PCR, and enzyme-linked immunosorbent assay (ELISA). We then isolated fibroblast-like cells from the contracted tissue to study the potential inhibition of these processes in vitro. We assessed the effects of a LOX inhibitor, ß-aminopropionitrile (BAPN), on the cells by a hydroxyproline assay, ELISA, and Second Harmonic Generation imaging. We also evaluated the cell-mediated contraction of extracellular matrix in 3D cell-populated collagen gels. For the first time, we have confirmed significantly increased crosslinking and excessive collagen type I deposition in the clubfoot-contracted tissue. We successfully reduced these processes in vitro in a dose-dependent manner with 10-40 µg/mL of BAPN, and we observed an increasing trend in the inhibition of the cell-mediated contraction of collagen gels. The in vitro inhibitory effects indicate that BAPN has good potential for the treatment of relapsed and resistant clubfeet.


Assuntos
Aminopropionitrilo/farmacologia , Pé Torto Equinovaro/tratamento farmacológico , Colágeno/química , Reagentes de Ligações Cruzadas/farmacologia , Fibroblastos/efeitos dos fármacos , Proteína-Lisina 6-Oxidase/antagonistas & inibidores , Pré-Escolar , Pé Torto Equinovaro/metabolismo , Pé Torto Equinovaro/patologia , Feminino , Humanos , Masculino
17.
J Foot Ankle Surg ; 60(4): 702-705, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33573906

RESUMO

The aim of this retrospective study was to assess our management of Congenial Talipes Equinovarus (CTEV) in relation to national standards published by the British Society for Children's Orthopaedic Surgery (BSCOS). A secondary aim was to evaluate if a more tailored bracing regime than advocated in the traditional Ponseti technique, would be appropriate for some cases of CTEV. One hundred and thirty-three feet in 96 patients were treated between June 2006 and January 2016. All patients were clinically assessed prospectively by the senior author at initial presentation using the Harrold & Walker classification system. A combination of the senior author's database, Elogbook and trust IT systems were used for data collection. The results of Ponseti surgical procedures such as tendoachilles release and tibialis transfer fell within the BSCOS guidelines. The rate of radical subtalar surgical release was higher than advocated (12.3%) which was partly due to the number of primary syndromal patients in the series. There was a significantly lower mean time spent in bracing of 14.3 months (95% confidence interval 14.8-19.3) compared to recommended national guidelines. There was a clinically significant difference in the lower relapse rate of female patients compared to male patients and also a higher propensity of surgical intervention in male patients. In addition, there was a statistically significant difference in both time spent in bracing, between H&W classifications and between patients who had bracing removed pre walking age or post walking age. This potentially demonstrates a more tailored bracing regime may be possible when applied to less severely affected feet and the condition may be more benign in female cases.


Assuntos
Pé Torto Equinovaro , Braquetes , Moldes Cirúrgicos , Criança , Feminino , Humanos , Lactente , Masculino , Estudos Retrospectivos , Resultado do Tratamento
18.
J Foot Ankle Surg ; 60(2): 307-311, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33218863

RESUMO

BACKGROUND: The management of resistant talipes equinovarus (TEV) is challenging. Residual deformity and recurrence are among the most feared complications. This study was conducted to evaluate the effectiveness of talectomy in the management of arthrogrypotic TEV and to investigate the value of adding a simplified Ilizarov fixator (SIF). PATIENTS AND METHODS: A total of 42 resistant TEV feet among 23 arthrogrypotic children were operated between January 2012 and 2016. The average age was 6.7 ± 1.67 years. The feet were divided into 2 groups; group A (Casting group) included 20 feet (11 children) that were managed by talectomy and casting, while group B (Fixator group) included 22 feet (12 children) that were treated using a SIF concomitant with talectomy. The results were evaluated morphologically by Dimeglio grading system and functionally by Legaspi system. RESULTS: The average follow-up was 36.62 ± 3.88 months. With the numbers available in this study, there was significant improvement (p ≤ .05) in the Dimeglio scores in both groups, which was significantly more evident (p ≤ .05) among the fixator group. The majority of the good functional results were reported among the fixator group, while the poor feet were observed mainly in the casting group (p ≤ .05). The functional end results were significantly affected (p≤ .05) by the final Dimeglio scores. The age had also statistically significant effect (p≤ .05) on the functional end results in group A only. CONCLUSION: Talectomy is an effective procedure for salvaging arthrogrypotic TEV. Supplementation of the procedure by SIF was associated with more satisfactory morphological and functional results particularly in older children.


Assuntos
Artrogripose , Pé Torto Equinovaro , Fixadores Externos , Tálus , Criança , Pré-Escolar , Pé Torto Equinovaro/cirurgia , Seguimentos , , Humanos , Resultado do Tratamento
19.
Foot Ankle Surg ; 27(4): 439-442, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32620389

RESUMO

BACKGROUND: The purpose of the study was to evaluate the reliability and validity of the Turkish version of the Oxford Ankle Foot Questionnaire (OxAFQ) to provide cultural adaptation. METHODS: This study involved translation, back translation, and cross-cultural adaptation. Forty-nine patients with congenital talipes equinovarus were evaluated using the Turkish version of OxAFQ. Turkish version of the Childhood Health Assessment Questionnaire (CHAQ) was used as a gold standard to validate the Turkish version of the OxAFQ. The validation was assessed with Spearman correlation analysis by using CHAQ. The reliability of the questionnaire was assessed with Cronbach alpha (internal consistency) and exploratory factor analysis. RESULTS: High validity was found between OxAFQ and CHAQ (r = -0.422-0.292) (p < 0.01). Reliability analysis showed that OxAFQ had a high level of Cronbach alpha (α = 0.88-0.96) and internal consistency (ICC = 0.90-0.96). CONCLUSION: The Turkish version of OxAFQ is a valid, reliable and useful quality of life questionnaire in patients with congenital talipes equinovarus and it is proper for use by health professionals and researchers.


Assuntos
Tornozelo , Pé Torto Equinovaro/epidemiologia , Comparação Transcultural , , Qualidade de Vida , Inquéritos e Questionários , Traduções , Adolescente , Criança , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Turquia/epidemiologia
20.
Foot Ankle Surg ; 27(5): 480-485, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32958391

RESUMO

BACKGROUND: The Ponseti method is the standard of care for managing idiopathic congenital talipes equinovarus (clubfoot) in the outpatient setting, but there are no clinical guidelines for inpatient treatment. Children in the neonatal intensive care unit (NICU) with clubfoot often delay treatment initiation due to medical reasons. METHODS: We systematically reviewed literature related to the treatment of clubfoot in the NICU, non-idiopathic clubfoot, and older infants, as well as barriers to care. RESULTS: In a mixed NICU population of syndromic and idiopathic clubfoot, the Ponseti method has good functional outcomes with minimal interference with medical management. The Ponseti method has good functional outcomes with reduced need for extensive surgical procedures in non-idiopathic clubfoot and idiopathic clubfoot with delayed presentation (under one year of age). CONCLUSIONS: It is possible to begin Ponseti treatment in the NICU without compromising medical management. It is not clear if this confers an advantage over waiting for outpatient casting.


Assuntos
Moldes Cirúrgicos , Pé Torto Equinovaro/cirurgia , Hospitalização , Unidades de Terapia Intensiva Neonatal , Procedimentos Ortopédicos/métodos , Criança , Humanos , Lactente , Recém-Nascido , Masculino , Resultado do Tratamento
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