Recovery is incomplete in around 20% to 30% of children with brachial plexus birth injury.[49]Zafeiriou DI, Psychogiou K. Obstetrical brachial plexus palsy. Pediatr Neurol. 2008 Apr;38(4):235-42.
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[108]Basit H, Ali CDM, Madhani NB. Erb palsy. 2022 Feb 27. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Feb 27.
https://www.ncbi.nlm.nih.gov/books/NBK513260
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[163]Bénié CA, Akobé JRA, Lohourou FG, et al. Obstetrical brachial plexus palsy (PBOPP): epidemiological, therapeutic and evolutionary features of patients at the Bouaké University Hospital, Ivory Coast [in French]. Pan Afr Med J. 2021;38:309.
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Shoulder dysfunction is the most common source of impairment, with the main problems related to weakness of external rotation, difficulty with overhead and at-the-head activities, and posterior shoulder subluxation/dislocation. Physiotherapy and occupational therapy, tendon transfers, or humeral osteotomy can successfully improve shoulder function.[22]Smith BW, Daunter AK, Yang LJ, et al. An update on the management of neonatal brachial plexus palsy-replacing old paradigms: a review. JAMA Pediatr. 2018 Jun 1;172(6):585-91.
http://www.ncbi.nlm.nih.gov/pubmed/29710183?tool=bestpractice.com
[56]Abzug JM, Chafetz RS, Gaughan JP, et al. Shoulder function after medial approach and derotational humeral osteotomy in patients with brachial plexus birth palsy. J Pediatr Orthop. 2010 Jul-Aug;30(5):469-74.
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[130]Alluri RK, Lightdale-Miric N, Meisel E, et al. Functional outcomes of tendon transfer for brachial plexus birth palsy using the Hoffer technique. Bone Joint J. 2020 Feb;102-B(2):246-53.
http://www.ncbi.nlm.nih.gov/pubmed/32009423?tool=bestpractice.com
Elbow dysfunction typically relates to flexion contracture and difficulty with supination of the forearm. Flexion contractures can be improved with botulinum toxin type A injection with serial casting or surgical release but have a high recurrence rate.[118]Ho ES, Kim D, Klar K, et al. Prevalence and etiology of elbow flexion contractures in brachial plexus birth injury: a scoping review. J Pediatr Rehabil Med. 2019;12(1):75-86.
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[122]Buchanan PJ, Grossman JAI, Price AE, et al. The use of botulinum toxin injection for brachial plexus birth injuries: a systematic review of the literature. Hand (N Y). 2019 Mar;14(2):150-4.
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[151]DeDeugd CM, Shin AY, Shaughnessy WJ. Derotational pronation-producing osteotomy of the radius and biceps tendon rerouting for supination contractures in neonatal brachial plexus palsy patients. Tech Hand Up Extrem Surg. 2018 Mar;22(1):10-14.
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[152]Clippinger BB, Plucknette BF, Soldado F, et al. The one-bone forearm in children: surgical technique and a retrospective review of outcomes. J Hand Surg Am. 2022 Feb;47(2):189.e1-189.e9.
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[157]Morscher MA, Thomas MD, Sahgal S, et al. Onabotulinum toxin type A injection into the triceps unmasks elbow flexion in infant brachial plexus birth palsy: A retrospective observational cohort study. Medicine (Baltimore). 2020 Aug 21;99(34):e21830.
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http://www.ncbi.nlm.nih.gov/pubmed/32846828?tool=bestpractice.com
Supination of the forearm is often the last function to recover in brachial plexus birth injury (BPBI) and can be considerably limited. Therapy focusing on this activity can produce good improvements in function.
Wrist and hand dysfunction usually accompany the most severe injuries and, as such, is challenging to treat. Most patients will have good hand and wrist function, but those who do not can be managed with nerve and tendon transfers to maximise wrist extension and finger grasp and release. Hand function in children with severe global palsies improves after surgery in 48% to 93%, depending on definition.[96]Pondaag W, Malessy MJA. Evidence that nerve surgery improves functional outcome for obstetric brachial plexus injury. J Hand Surg Eur Vol. 2021 Mar;46(3):229-36.
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The long-term ability to perform activities of daily living and general function is good for most patients despite these limitations.[110]Annika J, Paul U, Anna-Lena L. Obstetric brachial plexus palsy - A prospective, population-based study of incidence, recovery and long-term residual impairment at 10 to 12 years of age. Eur J Paediatr Neurol. 2019 Jan;23(1):87-93.
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[167]Hulleberg G, Elvrum AK, Brandal M, et al. Outcome in adolescence of brachial plexus birth palsy. 69 individuals re-examined after 10–20 years. Acta Orthop. 2014 Dec;85(6):633-40.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4259022
http://www.ncbi.nlm.nih.gov/pubmed/25238434?tool=bestpractice.com
[168]Butler L, Mills J, Richard HM, et al. Long-term follow-up of neonatal brachial plexopathy: psychological and physical function in adolescents and young adults. J Pediatr Orthop. 2017 Sep;37(6):e364-8.
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[169]Ploetze K, Goldfarb C, Roberts S, et al. Radiographic and clinical outcomes of the shoulder in long-term follow-up of brachial plexus birth injury. J Hand Surg Am. 2020 Dec;45(12):1115-22.
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