Related Experiment Videos
Renal osteodystrophy: neurosurgical considerations and challenges.
Anand Veeravagu1, Karthikeyan Ponnusamy, Bowen Jiang
1Department of Neurosurgery, Stanford University School of Medicine, Palo Alto, California, USA.
World Neurosurgery
|November 29, 2011
Summary
Dialysis-associated destructive spondyloarthropathy (DSA) causes cervical fractures in dialysis patients. Revision surgery with longer constructs and halo immobilization can improve outcomes and prevent hardware failure.
Area of Science:
- Spine surgery
- Nephrology
- Orthopedics
Background:
- Dialysis-associated destructive spondyloarthropathy (DSA) is a significant bony complication in end-stage renal disease patients.
- Risk factors include hemodialysis duration and patient age, leading to osteoporosis and poor bone density.
- DSA increases risks of atraumatic fractures, instrumentation failure, and neurologic compromise.
Observation:
- A 44-year-old dialysis patient experienced cervical radiculopathy from atraumatic C5-C6 vertebral fractures.
- Initial surgery involved anterior corpectomies and posterior instrumentation (C4-T1).
- Postoperative CT revealed anterior translation and posterior instrumentation failure.
Findings:
- Revision surgery included traction, C2-T5 reinstrumentation, and a 6-month halo immobilization.
- At 18 months, the patient remained ambulatory with no construct failure.
- Literature review of 138 cases highlights common complications and surgical outcomes in DSA patients.
Implications:
- Renal osteodystrophy poses challenges for spine surgeons due to compromised bone density.
- Hardware failure is common, necessitating revision surgery in 22% of published cases.
- Circumferential instrumentation and halo immobilization may reduce pseudoarthrosis and construct pull-out risks.