The Putti Sign Following Residual Brachial Plexus Birth Injury: Prevalence and Significance.

BACKGROUND: The Putti sign, a common deformity and complaint in children with brachial plexus birth injury (BPBI), stems from a glenohumeral (GH) abduction contracture. Despite recent clinical studies offering insights into this deformity, none have explored the prevalence of the Putti sign or its correlation with GH abduction contractures. METHODS: We conducted a prospective analysis of 238 patients (median age 7.5 years; range, 4.1-16.2) with residual BPBI seen in the clinic from December 2019 to December 2022. Epidemiological data, including demographics, palsy levels, modified Mallet scale sum, surgical history, and presence/absence of the Putti sign and glenohumeral adduction angle (GHADD), were collected. Patients were categorized into 4 age groups: 0 to 5 years (n=67), 6 to 10 years (n=102), 11 to 15 years (n=53), and 16 years and older (n=16). Results were expressed as medians (minimum-maximum), with frequency comparisons done using Pearson's chi-square analysis. Mann-Whitney U and Kruskal-Wallis tests were used for quantitative variable comparison, and receiver operating characteristic (ROC) analysis determined the threshold GHADD angle for Putti sign appearance. RESULTS: Main findings included: (1) 27% of patients with residual BPBI exhibited the Putti sign, (2) confirmed correlation between the Putti sign and GH adduction contractures, (3) Putti sign manifestation with GHADD angle measuring less than -5° because to abduction contracture, and (4) association between this deformity and reduced activities requiring external rotation. No significant differences in Putti sign prevalence were found across age groups. CONCLUSIONS: Our study underscores the common occurrence of the Putti sign in children with residual BPBI. It is important to note that we highlight its functional significance beyond cosmetic concerns. Contrary to prior literature, our analysis reveals functional impairment associated with the Putti sign. Although no age-based differences in Putti sign prevalence were observed, patients aged 0 to 5 years and 11 to 15 years showed more severe glenohumeral abduction contractures, possibly due to growth spurts. LEVEL OF EVIDENCE: Diagnosis IV.

Shoulder external rotation contracture following neonatal brachial plexus injury.

BACKGROUND: Glenohumeral posterior external rotation contractures and scapular winging are frequently overlooked problems in residual neonatal brachial plexus injury (NBPI). Recent attention has emphasized their impact on vital functions such as feeding and hygiene. This study aims to present the epidemiology of posterior glenohumeral (GH) contractures in a significant pediatric NBPI population and explore contributing factors. METHODS: We conducted a retrospective analysis of data collected from January 2019 to November 2022, involving a case series of 262 children with residual NBPI. The data included demographics, palsy level, prior surgical history, and the modified Mallet scale. Glenohumeral passive internal rotation in abduction (IRABD) and cross-body adduction (CBADD) angles were measured bilaterally. Subjects were categorized into 'Belly-' (Mallet Hand-to-Belly <3) and 'Belly+' (Mallet Hand-to-Belly ≥3) groups. RESULTS: Median participant age was 7.9 years (range: 3.5 - 21 years). Extension injury patterns included Erb's palsy (56.5%), extended Erb's palsy (28.6%), and global palsy (14.9%). Contractures exceeding 10, 20, and 30 degrees were prevalent in both IRABD and CBADD angles. The 'Belly-' group (9.5%) demonstrated a significant reduction in both angles compared to the 'Belly+' group. Weak correlations were found between IRABD (r=0.390, p<0.0001) or CBADD (r=0.163, p=0.0083) angles and Mallet hand-to-abdomen item. Glenohumeral reduction and Hoffer procedures led to a notable decrease in CBADD angle, without affecting 'Belly-' prevalence. Global injuries exhibited decreased angles compared to Erb's group. CONCLUSIONS: External rotation glenohumeral contractures are prevalent in residual NBPI, impacting midline access. Surprisingly, history of glenohumeral procedures or extensive injuries did not increase the likelihood of losing the ability to reach the belly. ROC analysis suggests specific thresholds for maintaining this ability.

Factores de riesgo del síndrome de túnel del carpo en usuarios de sillas de ruedas

Introducción: El síndrome de túnel de carpo es una neuropatía del nervio mediano muy frecuente en la población. Para los usuarios de sillas de ruedas hay mayor riesgo biomecánico por utilizar reiteradamente la muñeca en la propulsión de este vehículo. Objetivo: Analizar los factores biomecánicos de la silla de ruedas que inciden en el desarrollo del síndrome de túnel del carpo. Métodos: Se realizó una revisión sistemática con términos Mesh en bases de datos como Embase, Pubmed, Google Acedemics, Scielo desde 1988 hasta 2021. Se revisaron más de 200 artículos y por su impacto clínico, se seleccionaron 52 para la revisión. Resultados: El 43 % de los usuarios de silla de ruedas presentan dolor en la muñeca y prevalece como diagnóstico el síndrome de túnel del carpo. La posición de la muñeca en la propulsión genera un aumento de presión en el túnel carpiano lo que condiciona la lesión del nervio mediano. Existen factores de riesgo como el género femenino, las pendientes, el terreno irregular, la vibración, la altura del asiento y el peso del paciente. Entender correctamente las fases de la autopropulsión con sus cuatro patrones, más una prescripción adecuada y los aditamentos necesarios para la silla de ruedas pueden disminuir el riesgo de padecer el síndrome de túnel del carpo. Conclusión: Es importante involucrar de manera activa a los profesionales de la salud en la implementación de estrategias para el entrenamiento, prescripción y uso correcto de la silla de ruedas y con ello prevenir el padecimiento de el síndrome de túnel carpiano.

Introduction: Carpal tunnel syndrome is a very common neuropathy of the median nerve in the population. For wheelchair users, there is a greater biomechanical risk for repeatedly using the wrist to propel this vehicle. Objective: To analyze the biomechanical factors of the wheelchair affecting the development of carpal tunnel syndrome. Methods: A systematic review with Mesh terms was carried out in databases such as Embase, Pubmed, Google Acedemics, Scielo from 1988 to 2021. More than 200 articles were reviewed and due to their clinical impact, 52 were selected for the review. Results: 43% of wheelchair users have wrist pain and carpal tunnel syndrome prevails as a diagnosis. The position of the wrist in the propulsion generates an increase in pressure in the carpal tunnel conditioning the injury of the median nerve. There are risk factors such as female gender, angles, uneven terrain, vibration, seat height and patient weight. Proper understanding the phases of self-propulsion with its four patterns, plus correct prescription and necessary wheelchair attachments can decrease the risk of carpal tunnel syndrome. Conclusion: It is important to actively involve health professionals in the implementation of strategies for training, prescription and correct use of the wheelchair and thereby prevent carpal tunnel syndrome.

Nerve Graft and Nerve Transfer for Improving Elbow Flexion in Children with Obstetric Palsy. A Systematic Review.

Obstetric brachial plexus palsy is a rather common injury in newborns, caused by traction to the brachial plexus during labor. In this context, with the present systematic review, we aimed to explore the use of nerve graft and nerve transfer as procedures to improve elbow flexion in children with obstetric palsy. For the present review, we followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We searched the MEDLINE, EMBASE, LILACS, The Cochrane Central Register of Controlled Trials, Web of Science, Wholis and SCOPUS databases. Predetermined criteria defined the following requirements for inclusion of a study: Clinical trials, quasi-experiments, and cohort studies that performed nerve graft and nerve transfer in children (≤ 3 years old) with diagnosis of obstetric palsy. The risk of bias in nonrandomized studies of interventions assessment tool was used for nonrandomized studies. Out of seven studies that used both procedures, three of them compared the procedures of nerve graft with nerve transfer, and the other four combined them as a reconstructive method for children with obstetric palsy. According to the Medical Research Council grading system, both methods improved equally elbow flexion in the children. Overall, our results showed that both techniques of nerve graft and nerve transfer are equally good options for nerve reconstruction in cases of obstetric palsy. More studies approaching nerve reconstruction techniques in obstetric palsy should be made, preferably randomized clinical trials, to validate the results of the present systematic review.

Nerve Graft and Nerve Transfer for Improving Elbow Flexion in Children with Obstetric Palsy. A Systematic Review / Enxerto e transferência de nervo para melhora da flexão do cotovelo em crianças com paralisia obstétrica. Uma revisão sistemática

Abstract Obstetric brachial plexus palsy is a rather common injury in newborns, caused by traction to the brachial plexus during labor. In this context, with the present systematic review, we aimed to explore the use of nerve graft and nerve transfer as procedures to improve elbow flexion in children with obstetric palsy. For the present review, we followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We searched the MEDLINE, EMBASE, LILACS, The Cochrane Central Register of Controlled Trials, Web of Science, Wholis and SCOPUS databases. Predetermined criteria defined the following requirements for inclusion of a study: Clinical trials, quasi-experiments, and cohort studies that performed nerve graft and nerve transfer in children (≤ 3 years old) with diagnosis of obstetric palsy. The risk of bias in nonrandomized studies of interventions assessment tool was used for nonrandomized studies. Out of seven studies that used both procedures, three of them compared the procedures of nerve graft with nerve transfer, and the other four combined them as a reconstructive method for children with obstetric palsy. According to the Medical Research Council grading system, both methods improved equally elbow flexion in the children. Overall, our results showed that both techniques of nerve graft and nerve transfer are equally good options for nerve reconstruction in cases of obstetric palsy. More studies approaching nerve reconstruction techniques in obstetric palsy should be made, preferably randomized clinical trials, to validate the results of the present systematic review.

Resumo A paralisia obstétrica do plexo braquial é uma lesão bastante comum em neonatos, sendo causada pela tração do plexo braquial durante o trabalho de parto. A presente revisão sistemática tem como objetivo exploraro uso de enxertose transferências de nervo como procedimentos para melhora da flexão do cotovelo em crianças com paralisia obstétrica. A presente revisão sistemática seguiu as diretrizes Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA, na sigla em inglês) e foi baseada em pesquisa nos bancos de dados MEDLINE, EMBASE, LILACS, The Cochrane Central Register of Controlled Trials, Web of Science, Wholis e SCOPUS. De acordo com os critérios pré-determinados, os artigos incluídos eram ensaios clínicos, quase-experimentos, e estudos de coortes sobre enxertos e transferências de nervos em crianças (de até 3 anos de idade) com diagnóstico de paralisia obstétrica. A ferramenta de avaliação Risk of Bias in Non-Randomized Studies of Interventions foi usada em estudos não randomizados. Sete estudos utilizaram os dois procedimentos; três deles compararam os procedimentos de enxerto e transferência de nervo, enquanto os outros quatro os combinaram como método reconstrutivo em crianças com paralisia obstétrica. Segundo o sistema de classificação do Medical Research Council, os dois métodos melhoraram a flexão do cotovelo das crianças de maneira similar. De modo geral, nossos resultados mostraram que o enxerto de nervo e a transferência de nervo são opções igualmente boas para a reconstrução nervosa em casos de paralisia obstétrica. Mais estudos sobre as técnicas de reconstrução nervosa na paralisia obstétrica devem ser realizados, de preferência ensaios clínicos randomizados, para validação dos resultados dessa revisão sistemática.