Spinal fusion in Duchenne muscular dystrophy

Area of Science:

• Orthopedic Surgery
• Pediatric Neurology
• Pulmonology

Background:

• Duchenne muscular dystrophy (DMD) frequently leads to progressive spinal deformity (scoliosis).
• Spinal fusion is a common surgical intervention for managing scoliosis in DMD patients.
• Pulmonary complications are a significant concern following spinal fusion in this population.

Purpose of the Study:

• To evaluate the outcomes of posterior spinal fusion with instrumentation in DMD patients with progressive spinal deformity.
• To identify risk factors for postoperative pulmonary complications.
• To assess the impact of spinal fusion on quality of life and survival in DMD.

Main Methods:

• Retrospective review of 183 DMD patients, with 68 undergoing posterior spinal fusion.
• Analysis of postoperative complications, focusing on pulmonary issues.
• Assessment of factors influencing quality of life, including surgical technique and spinal alignment.
• Comparison of survival rates with historical data.

Main Results:

• Pulmonary complications occurred in 17% of patients post-surgery.
• A preoperative forced vital capacity (FVC) of 35% predicted pulmonary complication risk.
• Spinal stabilization improved patient comfort and ease of care.
• Pulmonary function deterioration was not altered by spinal fusion; survival age was similar to DMD patients without fusion.

Conclusions:

• Posterior spinal fusion offers significant quality of life benefits for DMD patients with scoliosis.
• Careful patient selection and monitoring are crucial due to the risk of pulmonary complications.
• Surgical techniques like segmental instrumentation and achieving normal sagittal alignment enhance outcomes.