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Postoperative deep wound infection in instrumented spinal surgery
U Aydinli1, O Karaeminoğullari, K Tişkaya
1Department of Orthopedics and Traumatology, School of Medicine, University of Uludağ, Bursa, Turkey.
Acta Orthopaedica Belgica
|July 31, 1999
Summary
Deep wound infections after spinal surgery are uncommon. Late reactions mimicking infection can occur due to metallic debris from spinal implants, not bacteria.
Area of Science:
- Orthopedic Surgery
- Spinal Surgery
- Infectious Disease
Background:
- Postoperative deep wound infection is a significant complication in instrumented spinal surgery.
- Understanding the incidence and risk factors is crucial for patient outcomes.
Purpose of the Study:
- To analyze the frequency, nature, and risk factors of deep wound infection following instrumented spinal surgery.
- To differentiate true infections from other postoperative complications.
Main Methods:
- Prospective documentation of 174 instrumented spinal operations.
- Patient investigation for potential risk factors associated with infection.
- Classification of infections as acute (early) or late (after 12 months).
Main Results:
- An acute infection rate of 4.6% (8 cases) was observed, treated with surgical debridement.
- A 1.7% rate (3 cases) of late reactions occurred, treated by implant removal.
- These late reactions were identified as foreign body responses to metallic debris, not bacterial infections.
Conclusions:
- While acute infections are treatable, late complications can arise from metallic debris around spinal implants.
- Micromotion at implant junctions generates debris, causing inflammation that mimics infection.
- Implant removal effectively resolves these foreign body reactions.