Related Experiment Video
Updated: May 22, 2026
A Retrospective Study on Endoscopic Surgery for the Treatment of Paravertebral Abscess in Spinal Tuberculosis Patients
Published on: October 25, 2024
Is 18 F-FDG PET-CT-guided geographic debridement superior to conventional debridement in appendicular chronic
Ahmed Elsheikh1, Hussein Elseidy2, Hossam Saad2
1Department of Orthopaedic Surgery, Faculty of Medicine, Benha University, Benha, Egypt. Ahmed.elsheikh@fmed.bu.edu.eg.
Background:
Determining the surgical extent of chronic osteomyelitis and fracture-related infection (FRI) remains challenging. Adequate resection margins prevent recurrence; however, no standardised preoperative tool objectively defines resection borders.
Objective:
To compare PET‑CT-guided surgical planning versus the local standard‑of‑care imaging pathway (predominantly plain radiographs, with selective CT or MRI in a minority of patients) for chronic limb osteomyelitis and FRI outcomes.
Methods:
Retrospective comparative cohort study of 126 patients treated 2019-2024. Group 1: 84 patients underwent 18 F-FDG PET-CT imaging and map-based geographic debridement. Group 2: 42 patients received surgery after local standard‑of‑care imaging pathway (predominantly plain radiographs, with selective CT or MRI).
Primary Outcome:
infection recurrence at 12 months. Multivariable logistic regression controlled for confounders.
Results:
PET-CT group achieved 3.6% recurrence versus 16.7% in the conventional group (p = 0.011), representing 78.5% relative risk reduction and a number-needed-to-treat of 8. Critically, the PET-CT cohort had significantly worse baseline complexity: 3.3-fold longer infection duration (43.1 vs. 13.1 months, p < 0.001) and 3.6-fold more prior surgeries (2.48 vs. 0.69, p < 0.001). Multivariable analysis confirmed PET-CT-guided surgery as an independent protective factor (OR 0.19, 95% CI 0.05-0.72, p = 0.015). PET-CT drew the resection margins in all cases, soft-tissue collections in 23.8%, and sequestra in 67.9%.
Conclusions:
In this retrospective comparative study, PET-CT may enable objective, adequate geographic debridement, bridging radical and conservative approaches. Superior outcomes despite treating more complex infections may support PET-CT as a preoperative planning modality, demonstrating potential clinical and cost-effectiveness benefits. (Therapeutic study - retrospective comparative cohort).
Level Of Evidence:
III (Therapeutic study - retrospective comparative cohort).
Insights
Fluorodeoxyglucose-positron emission tomography-computed tomography (FDG-PET-CT) significantly reduces infection recurrence in chronic osteomyelitis and fracture-related infections (FRI) compared to standard imaging. This advanced imaging technique aids in precise surgical planning for better patient outcomes.
Area of Science:
- Orthopedic Surgery
- Nuclear Medicine
- Infectious Diseases
Background:
- Accurate surgical debridement for chronic osteomyelitis and fracture-related infections (FRI) is crucial to prevent recurrence but lacks standardized preoperative tools.
- Current imaging modalities often fail to objectively define the full extent of infection, complicating surgical planning.
Purpose of the Study:
- To compare the efficacy of 18F-FDG PET-CT guided surgical planning against the conventional imaging pathway for treating chronic limb osteomyelitis and FRI.
- To evaluate the impact of PET-CT on infection recurrence rates and surgical outcomes in complex orthopedic infections.
Main Methods:
- A retrospective comparative cohort study involving 126 patients treated between 2019 and 2024.
- Group 1 (84 patients) utilized 18F-FDG PET-CT for surgical planning and map-based debridement.
- Group 2 (42 patients) underwent surgery based on standard imaging (plain radiographs, CT, or MRI).
Main Results:
- The PET-CT group demonstrated a significantly lower recurrence rate (3.6%) compared to the conventional group (16.7%), achieving a 78.5% relative risk reduction.
- Patients in the PET-CT cohort presented with more complex infections, including longer duration and more prior surgeries, yet still showed superior outcomes.
- Multivariable analysis confirmed PET-CT-guided surgery as an independent protective factor against recurrence (OR 0.19).
Conclusions:
- 18F-FDG PET-CT facilitates objective and adequate geographic debridement, offering a balanced approach between radical and conservative surgical strategies.
- The superior outcomes achieved with PET-CT, even in more complex cases, suggest its potential as a valuable preoperative planning tool with clinical and cost-effectiveness benefits.
