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Elbow flexion contracture development in school-age children with a brachial plexus birth injury (BPBI) is common. Reports indicate onset between 2 and 4 years; however, little is known about early childhood prevalence, development, and trajectory of these contractures. To determine the prevalence and predictors of BPBI elbow flexion contractures during early childhood. A retrospective cross-sectional study. Demographic, diagnostic, treatment, and elbow contracture data were collected for children with a BPBI <4 years between 2015 and 2019 from a prospectively collected database. Spinal root motor contributions and injury were determined using Active Movement Scale (AMS) scores at 6 weeks of age and used to predict contracture development. Of the 171 children that met inclusion criteria, 87% (n = 149) had upper plexus injuries. The mean age at the time of evaluation for an elbow contracture was 21.4 ± 12.7 months. The prevalence of elbow flexion contractures was 22% (n = 38), with mean onset at 13.4 ± 11.0 months. Mean contracture degree was −10.8 ± −6.9 degrees with 76% (n = 29) <−10 degrees. AMS shoulder abduction, flexion, and external rotation; elbow flexion; forearm supination; and wrist extension scores at a mean 2.3 ± 1.4 months were significantly lower in children who developed elbow flexion contractures (p < 0.001). Logistic regression found that low AMS elbow flexion with high elbow extension scores were a significant (p < 0.003) predictor of elbow contracture development. The prevalence of elbow flexion contractures in early childhood is greater than previously understood. These findings indicate that C5-C6 injury affecting elbow flexion with relative preservation of elbow extension is a predictor of contracture development. Further research is needed to investigate the nature and sequelae of C5-C6 injury and its effects on elbow flexion contracture development. • Early childhood prevalence of BPBI elbow contractures was 22% with a mean onset at 13.4 months of age. • The magnitude of the contractures was mild and a mean 10.8 ± -6.9 degrees. • C5/C6 injury affecting elbow flexion with preserved extension predicted contracture development. [ABSTRACT FROM AUTHOR]

The Sup-ER protocol involves a repositioning program for infants with brachial plexus birth injury to position the shoulder in external rotation (ER) to address progressive loss in passive range of motion (PROM). The British Columbia Children's Hospital (BCCH) eligibility criteria for this protocol are infants aged 4-8 weeks with decreased shoulder ER PROM and/or Active Movement Scale (AMS) shoulder ER and/or supination scores ≤2. The resources needed to implement this protocol in large clinics have not been studied. This study aims to evaluate the BCCH criteria that are used to identify appropriate candidates for the Sup-ER protocol. A retrospective cohort study was conducted to identify the percentage of infants who would have been recommended the Sup-ER protocol based on their PROM and AMS scores between 4 and 8 weeks of age. A sensitivity and specificity evaluation was used to describe the BCCH criteria's ability to identify infants in this historical cohort who went on to have incomplete shoulder function (ie, true positive) vs infants who had functional shoulder outcome at 9 months of age (ie, false positive). At a mean of 5.8 weeks (95% confidence interval [CI] 5.3, 6.3), 46 of the 87 (53%) infants satisfied the BCCH Sup-ER protocol criteria. Forty-four (51%) were female, half (n = 45) were left side affected, and 88% had upper plexus injury. The BCCH Sup-ER protocol criteria had sensitivity of 100% and specificity of 71% to identify infants with incomplete shoulder function. Removing the AMS supination ≤2 score criterion from the criteria improves the specificity to 84%, while sensitivity remains high (97%). Modifying the BCCH criteria to all infants aged 4-8 weeks with AMS shoulder ER ≤2 and/or decreased shoulder ER PROM improves the precision of identifying infants who would benefit from the Sup-ER protocol. • Using the British Columbia Children's Hospital (BCCH) criteria, 53% of infants at a high volume brachial plexus clinic would be recommended the Sup-ER protocol. • Modifying the BCCH criteria by removing the supination criterion reduces the number of qualifying infants by 10% while maintaining high sensitivity (97%). • These modified BCCH criteria improve the precision of identifying infants who would benefit from the Sup-ER protocol. [ABSTRACT FROM AUTHOR]

Purpose: The purpose of this study was to identify the functional and aesthetic factors associated with an elbow flexion contracture in children with a brachial plexus birth injury who identified their elbow flexion contracture as a problem. Materials and methods: A retrospective cross-sectional study of children with brachial plexus birth injury between 7 and 18 years was conducted to compare the characteristics of children who had treatment for an elbow flexion contracture with those who did not. Results: Fifty of the 200 children included in the study had treatment (one surgical release, 49 serial casting/splinting) for the elbow flexion contracture. Children who had treatment were an average 12.4 years of age, which was significantly older than those who did not have treatment. Elbow extension passive range of motion was an average −40.6° prior to treatment. Stepwise logistical regression model indicated that children who had treatment had greater severity in elbow contracture, higher Brachial Plexus Outcome Measure Activity scores, and lower Brachial Plexus Outcome Measure Self-Evaluation Appearance scores. Conclusions: In addition to severity of contracture and function, perceived appearance of the limb is important factor to evaluate in the management of elbow flexion contractures. Priority is often given to evaluate the functional implications of elbow flexion contractures in brachial plexus birth injury to determine recommendations for rehabilitation interventions such as serial casting and splinting. Findings in this study indicate that severity of contracture, upper extremity activity function, and perceived upper extremity appearance are important factors in the management of elbow contractures. In addition to upper extremity function, routine evaluation of perceived upper extremity appearance in children and adolescents is important in the management of elbow flexion contractures. [ABSTRACT FROM AUTHOR]

PURPOSE: To conduct a systematic review of studies on non-surgical and surgical interventions for elbow flexion contractures secondary to brachial plexus birth injury (BPBI). METHODS: MEDLINE, EMBASE, PsycINFO, and CINAHL databases were searched for randomized controlled trials, observational studies, and case series studies on treatment of elbow flexion contractures secondary to BPBI. Study quality was evaluated using the Effective Public Health Practice Project tool. RESULTS: Of the 950 records found, 132 full text articles were reviewed, and 3 cohort studies and 8 case series were included. The overall methodological quality of included studies was weak. The weak quality evidence demonstrated that significant gains in elbow extension passive range of motion (ROM) can be achieved with serial casting (range: 15 to 34.5 degrees) or elbow release surgery (range: 28.4 to 30.0 degrees). At best, a reduction to an elbow contracture between - 15.0 and - 18.8 degrees (casting) and - 8.0 and - 43.6 (elbow release surgery) can be achieved. Insufficient outcomes on elbow flexion ROM and strength were found in both non-surgical and surgical studies. CONCLUSION: The quality of evidence on the effectiveness of interventions for an elbow flexion contracture secondary to BPBI is weak. In the context of insufficient evidence on the risks of pursuing such interventions, it is prudent to attempt non-surgical interventions prior to surgery. Level of Evidence: : III – systematic review of level IV studies [ABSTRACT FROM AUTHOR]

PURPOSE: To synthesize the evidence on the prevalence and etiology of elbow flexion contractures secondary to brachial plexus birth injury (BPBI). METHODS: Using Arksey and O'Malley's scoping review framework, MEDLINE, EMBASE, PsycINFO, and CINAHL databases were searched, followed by a comprehensive grey literature search. Articles and abstracts of studies of all level of evidence on the prevalence, natural history, clinical presentation, etiology, and treatment of elbow flexion contractures in BPBI were included. RESULTS: Of the 884 records found, 130 full text articles were reviewed, and 57 records were included. The median prevalence of elbow flexion contracture in BPBI was 48%. The magnitude of the contractures was between 5 and 90 degrees. Contractures > 30 degrees were found in 21% to 36% of children. With recent clinical and lab studies, there is stronger evidence that the contractures are largely due to the effects of denervation causing failure in the growth of the affected flexor muscles, while muscle imbalance, splint positioning, and postural preferences play a smaller role. CONCLUSION: The etiology of elbow flexion contractures is multifaceted. The contribution of growth impairment in the affected muscles offers greater understanding as to why maintaining passive range of motion in these contractures can be difficult. [ABSTRACT FROM AUTHOR]

Purpose To determine the prevalence and characteristics of pain experienced by children who have had microsurgical reconstruction for obstetrical brachial plexus palsy (OBPP). Methods A prospective case series study was conducted of 65 children aged 6 to 18 years with a diagnosis of OBPP and who had microsurgery at less than 12 months of age with nerve grafting or transfer. A total of 28 patients (43%) had upper OBPP and 37 (57%) had total OBPP. We evaluated pain using the Faces Pain Scale–Revised and the Adolescent Pediatric Pain Tool. Sensory symptoms in the affected limb were also collected. Mean age was 11.0 ± 3.3 years. Results We evaluated 65 children. The point prevalence of pain (pain at the time of assessment) was 25%. The reported lifetime prevalence of pain (experienced anytime during life) was 66%. A total of 71% reported that the affected extremity felt different at least once in their lifetime. Average intensity of those with pain (n = 43) was 40 ± 19 mm on a 100-mm visual analog scale. Seventy percent of children reported that symptoms occurred every day or at least once a week. Anatomical distribution of pain was throughout the affected upper extremity irrespective of the severity of injury, with the exception of children with upper plexus injuries who did not report pain in their hand. Words typically used to describe neuropathic or musculoskeletal symptoms were chosen by the children to represent their pain. Conclusions Children with OBPP who had microsurgical reconstruction commonly reported pain. These symptoms were typically frequent but were episodic and low in intensity. The descriptions of the type of pain include terms typical of both neuropathic and musculoskeletal origins. Type of study/level of evidence Prognostic IV. [ABSTRACT FROM AUTHOR]

Introduction: Children with upper extremity injuries may report persistent pain beyond the period of acute injury. In the published literature, it is unclear whether these children develop idiopathic musculoskeletal pain (IMP) such as complex regional pain syndrome (CRPS). The purpose of this study was to determine the incidence rate of IMP after upper extremity injury in school-aged children over a 5- year period and to describe the characteristics of these children. Methods: A retrospective case series was conducted of all children aged 8-18 years with an upper extremity injury who attended the outpatient hand clinic in a tertiary care pediatric hospital. Results: A reported incidence rate of IMP was 1.9% over a 5-year period in the 879 children reviewed. Girls were more likely to have IMP. The categorical distribution of the type, etiology and anatomical location of injury was proportionately different for those with IMP compared to those without documentation of IMP. In comparison, a higher percentage of children with IMP reported disproportionate pain and hypersensitivity or neuropathic pain symptoms compared to the children who had pain from a known etiology. Conclusion: The incidence rate of IMP after upper extremity injury in school-aged children is low. Some common characteristics of this population that may help clinicians identify these children and make timely referrals for treatment include female gender, disproportionate pain, previously seen by multiple specialists, generalized injury in the hand, unspecific etiology or type of injury and unremarkable x-rays. [ABSTRACT FROM AUTHOR]