Written by Hannah Harp
Spoon Feed
Published studies around proper imaging and management of tethered spinal cord are heterogenous with no standardized guidelines. MRI has the highest diagnostic utility. Operations to prophylactically untether or revision of prior untethering have low-quality evidence.
Cut the cord
This systematic review addressed the diagnosis, prophylactic surgery, and treatment of tethered spinal cord syndrome, a condition causing motor, sensory, and urologic deficits. Drawing on 103 controlled studies and 355 case series, it found moderate evidence supporting the diagnostic accuracy of MRI and low quality evidence for prophylactic surgery benefits, such as motor stability, but noted risks like infections. For symptomatic patients, surgical detethering improved neurologic outcomes but carried risks, including cerebrospinal fluid leaks. Retethering treatment outcomes were mixed. Key limitations include inconsistent reporting, lack of comparator groups, and insufficient evidence for long-term outcomes. The findings underscore the need for standardized care and further research.
How will this change my practice?
This review has compiled over 100 reliable studies about tethered cord, and the results are quite varied. Makes sense – tethered cord causes symptoms that vary from numbness on the lateral toes to neurogenic bowel and bladder. Since kids can go from asymptomatic to symptomatic quickly as they grow, it will be important to know if there is any utility to prophylactic untethering. There won’t be any change to my practice, as I send all of these patients to see a neurosurgeon, but the more you know, the better counseling you can give.
Source
Diagnosis and Treatment of Tethered Spinal Cord: A Systematic Review. Pediatrics. 2024 Nov 1;154(5):e2024068270. doi: 10.1542/peds.2024-068270. PMID: 39449659
