Recovery of paraplegia following postoperative epidural hematomas in lumbar canal stenosis surgery by closed kinetic chain (CKC) exercises: A case report

RATIONALE: A postoperative spinal epidural hematoma (PSEH) is among the most devastating complications following spine and spinal cord surgery, and it should be considered before performing microendoscopic decompression as part of minimally invasive surgery, since early recovery is one of the advantages of this procedure. PATIENT CONCERNS: A 70-year-old woman with lumbar spinal stenosis at L4-5 underwent tubular surgery with the assistance of endoscopic laminectomy (MEL), but 2 days after the surgery, the patient noticed decreased lower limb sensation and power of the right leg, and she developed numbness from the level of L5 and weakness from the L4, 5 myotome distally. DIAGNOSES: An epidural hematoma at the L4-5 surgical site was found on magnetic resonance imaging of the lumbar spine and evacuated operatively. This rare complication appears to be the result of a PSEH. In the present case, complete neurological recovery was not achieved, despite rapid surgery. INTERVENTIONS: The patient's course and physical therapy, which focused on attitude maintenance practice and muscle-strengthening exercise of the closed kinetic change (CKC) type from the early stage of paraplegia, were specifically examined. OUTCOMES: The patient recovered complete motor function with attitude maintenance practice and muscle strengthening exercises after 3 months. CKC exercise in particular may contribute to improving caudal muscle weakness, including the L4, 5 innervated area (e.g., tibialis anterior [TA], extensor hallucis longus [EHL], flexor hallucis longus [FHL], gastrocnemius [GC], etc.). LESSONS: Prevention of PSEH is needed to not only avoid neurological deterioration, but also avoid delaying the patient's recovery. CKC exercise may contribute to improving the prolonged paralysis associated with a PSEH. Future studies should involve larger numbers of patients to evaluate the clinical features of PSEH and treatment by rehabilitation with more effective muscle exercises and stretches.