Postoperative Foot Drop After Spinal Surgery: Etiology, Presentation, and Management Strategies

Area of Science:

• Neurosurgery
• Orthopedic Surgery
• Neurology

Background:

• Postoperative foot drop (PFD) is a recognized complication following spine surgery.
• Estimated incidence is 3.33%, escalating to 30% in complex cases like high-grade spondylolisthesis correction.
• Risk factors include prolonged surgery, advanced age, disc-space distraction, and deformity correction.

Purpose of the Study:

• To review the incidence, mechanisms, risk factors, and management strategies for PFD after spine surgery.
• To highlight the importance of preventative measures and discuss current treatment options.

Main Methods:

• Literature review of studies reporting on PFD after spinal procedures.
• Analysis of reported incidence rates, causative mechanisms, and identified risk factors.
• Synthesis of current evidence on conservative and surgical treatment modalities.

Main Results:

• Key mechanisms include direct nerve trauma, stretch injuries, compression from hematomas/implants, and ischemia.
• Preventive strategies focus on preoperative counseling, intraoperative precision, and careful surgical technique.
• Treatment is etiology-dependent, ranging from physical therapy to complex surgical interventions with variable outcomes.

Conclusions:

• Minimizing PFD risk requires meticulous surgical execution and patient-specific considerations.
• Standardized guidelines for prevention and management are needed.
• Further research is essential to optimize patient outcomes for this complication.