Radial Nerve Palsy Secondary to Congenital Constriction Ring Syndrome in a Neonate: A Case Report and Literature Review

Bashar Al Jabary¹, Nidal Mrani Alaoui², Sarah Hosni², Karima Ben Ali3, Meryam Ramzi³, Merouane Nour⁴, Abdelouahed Amrani⁵, Mohammed Anouar Dendane⁵, Sidi Zouhair El Alami El Fellous⁵, Tarik El Madhi⁵

Keywords: Congenital constriction band syndrome, constriction ring syndrome, amniotic band syndrome, radial nerve palsy, case report

DOI: 10.63475/yjm.v4i2.0197

DOI URL: https://doi.org/10.63475/yjm.v4i2.0197

Publish Date: 22-09-2025

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Pages: 463 - 466

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Author Affiliation:

1 Senior Resident in Pediatric Surgery, Department of Pediatric Orthopaedic Surgery, Mohammed V University, Faculty of Medicine and Pharmacy of Rabat, Ibn Sina University Hospital Center, Rabat Children’s Hospital, Rabat, Morocco
2 Assistant Professor, Department of Pediatric Orthopaedic Surgery, Mohammed V University, Faculty of Medicine and Pharmacy of Rabat, Ibn Sina University Hospital Center, Rabat Children’s Hospital, Rabat, Morocco
3 Specialist, Department of Pediatric Orthopaedic Surgery, Mohammed V University, Faculty of Medicine and Pharmacy of Rabat, Ibn Sina University Hospital Center, Rabat Children’s Hospital, Rabat, Morocco
4 Associate Professor, Department of Pediatric Orthopaedic Surgery, Mohammed V University, Faculty of Medicine and Pharmacy of Rabat, Ibn Sina University Hospital Center, Rabat Children’s Hospital, Rabat, Morocco
5 Professor, Department of Pediatric Orthopaedic Surgery, Mohammed V University, Faculty of Medicine and Pharmacy of Rabat, Ibn Sina University Hospital Center, Rabat Children’s Hospital, Rabat, Morocco

Abstract

Congenital constriction band syndrome (CBS) is a rare condition characterized by either partial or complete circular constrictions around limbs or digits. Possible consequences include acrosyndactyly of the digits, terminal amputations, and localized swelling with digital edema distal to the constrictions. Occasionally, a constriction band may lead to injury of a peripheral nerve. We report a case of CBS in a newborn presenting with radial nerve palsy caused by a constriction band at the level of the arm. Surgical release of the congenital constriction band was performed at 1 month of age, including neurolysis of the radial nerve. As a result, the nerve was decompressed, and hand function was restored. Given the rarity of radial nerve palsy as a complication of congenital constriction bands, this case enriches the limited literature by emphasizing the importance of early diagnosis and prompt surgical intervention to optimize functional outcomes. It also highlights the need for increased clinical vigilance and provides practical insights into managing isolated radial nerve palsies.

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