Introduction: Osseointegration and the use of osteosynthetic material represent important areas in orthopedics and traumatology. Imaging techniques play a crucial role in diagnosing complications such as infections, implant loosening, and inadequate integration. SPECT/CT bone scintigraphy combines functional and anatomical information, providing more precise visualization of bone tissue changes compared to conventional scintigraphy or radiological examinations. Purpose: The main objective of this study was to evaluate the diagnostic value of SPECT/CT scintigraphy in patients with osteosynthetic material. We examined the impact of different reconstruction algorithms on image quality and analyzed their usefulness in detecting pathological changes. Additionally, we compared SPECT/CT with other imaging modalities such as conventional scintigraphy. Methods: The study included patients with implanted osteosynthetic material who underwent SPECT/CT examinations due to suspected complications. We analyzed diagnostic parameters such as image contrast, sensitivity, specificity, and the effect of different reconstruction algorithms on image quality. A comparative analysis of SPECT/CT with traditional imaging methods was conducted to evaluate its clinical applicability. Results: The results showed that SPECT/CT scintigraphy significantly improved diagnostics in patients with osteosynthetic material. The method provided more accurate visualization of areas with increased metabolic activity, which was essential for differentiating between inflammatory and degenerative processes. The use of advanced reconstruction algorithms, like xBONE, enhanced image contrast and sharpness, contributing to better recognition of pathological changes. Compared to conventional scintigraphy, SPECT/CT demonstrated higher accuracy and specificity in assessing implant conditions. Discussion and conclusion: Based on the study results, we conclude that SPECT/CT plays an important role in diagnosing complications in patients with osteosynthetic material. The combination of functional and anatomical information allows for better differentiation between pathological and physiological processes, contributing to more precise treatment planning. Advanced reconstruction algorithms further improve image quality, increasing the diagnostic value of the method. SPECT/CT is becoming an essential supplement to conventional imaging techniques and is increasingly recognized as a standard in clinical practice.
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