New neurologic deficit and recovery rates in the treatment of complex pediatric spine deformities exceeding 100 degrees
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New neurologic deficit and recovery rates in the treatment of complex pediatric spine deformities exceeding 100 degrees or treated by vertebral column resection (VCR) Oheneba Boachie‑Adjei1 · Henry Ofori Duah1 · Kwadwo Poku Yankey1 · Lawrence G. Lenke2 · Paul D. Sponseller3 · Daniel J. Sucato4 · Amer F. Samdani5 · Peter O. Newton6 · Suken A. Shah7 · Mark A. Erickson8 · Harry Akoto9 · Brenda A. Sides10 · Munish C. Gupta10 · Fox Pediatric Spinal Deformity Study10 Received: 8 April 2020 / Accepted: 8 September 2020 © Scoliosis Research Society 2020
Abstract Study design Prospective multicenter international observational study. Objective To investigate incidence of new neurologic deficit (NND) and the long-term recovery patterns following complex pediatric spine deformity surgery. Summary of background data The SRS M&M reports identify pediatric patients as having higher rate of new neurologic deficit compared with adults, while congenital and neuromuscular deformities are associated with higher new neurologic risks. Very few studies have had the large numbers of pediatric patients with curves exceeding 100 deg to ascertain the new neurologic deficit (NND) rates and recovery patterns as it relates to curve laterality and diagnosis. Method The FOX pediatric database from 17 international sites was queried for New Neurologic Deficit (NND) as characterized by change in American Spinal Injury Association (ASIA) Lower or Upper Extremity Motor Score. Recovery rates at specific intervals were recorded and related to the curve type and etiology. Results Data of 286 consecutive patients with normal pre-operative neurologic exams were reviewed. There were 160 females vs 125 males with an average age of 14.6 years. NND occurred in 27 patients (9.4%) in the immediate post-operative period. Diagnostic categories included idiopathic scoliosis (3 patients); idiopathic kyphoscoliosis(5 patients); congenital scoliosis (7 patients); congenital kyphoscoliosis (4 patients); congenital kyphosis (6 patients), other kyphosis (1 patient) and syndromic (1 patient). 1 patient was lost to follow-up (f/u) after discharge; 1 had chronic deficits at the first post-operative erect visit (from discharge to 9 months f/u) and was subsequently lost to follow-up; 2 patients were improving at 1-year f/u but lost to subsequent f/u. 16 patients had normal neurologic function by the time of the first post-operative erect visit, 21 patients at 1-year f/u and 21 patients at the 2-year f/u. 2 patients (0.69%) had improved NND at 2-year mark. Conclusion A significant proportion of patients with complex spine deformity experience NND. However, significant improvement in neurologic function can be expected over time as seen in this study without additional surgical intervention in most cases. Congenital deformities accounted for 63% of the patients experiencing NND. Keywords New Neurologic Deficit · Complex Spine Deformity · Neurologic recovery · Neurologic complications
* Oheneba Boachie‑Adjei [email protected] 1
FOCOS Orthopaedic
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