Fracture healing represents a coordinated biological process involving inflammatory, reparative, and remodeling phases. Successful bone regeneration requires balanced cellular activity and adequate biochemical signaling. Reactive oxygen species are generated following trauma and contribute to inflammatory responses at the fracture site.

Although physiological levels of ROS are necessary for cellular signaling, excessive oxidative stress can impair osteoblast differentiation, reduce bone mineralization, and delay fracture union. Several studies have demonstrated elevated lipid peroxidation products and altered antioxidant enzyme activities following skeletal injury.

Biochemical markers such as malondialdehyde (MDA), superoxide dismutase (SOD), catalase, and reduced glutathione (GSH) are widely used to assess oxidative stress status. Understanding the relationship between these biomarkers and fracture healing may provide insights into therapeutic optimization.

The present study evaluates oxidative stress biomarkers and pharmacological interventions among orthopedic patients with fractures.

Study Design Prospective observational study. Study Setting Department of Orthopedics in a tertiary care teaching hospital. Study Population Adult patients diagnosed with traumatic fractures requiring hospitalization. Inclusion Criteria • Age ≥18 years. • Radiologically confirmed fracture. • Patients willing to provide informed consent. Exclusion Criteria • Chronic inflammatory disorders. • Malignancy. • Chronic liver disease. • Chronic renal failure. • Long-term antioxidant supplementation. Sample Size A total of 120 patients were enrolled. Data Collection Demographic and clinical information was collected using structured case report forms. Biochemical Assessment Blood samples were collected at: • Day 1 (baseline) • Week 4 • Week 8 • Week 12 The following biomarkers were analyzed: • Malondialdehyde (MDA) • Superoxide dismutase (SOD) • Catalase • Reduced glutathione (GSH) Drug Utilization Assessment Prescribed medications were categorized as: • Analgesics • Non-steroidal anti-inflammatory drugs • Calcium supplements • Vitamin D preparations • Antibiotics • Bone health medications Outcome Measures Primary outcomes: • Changes in oxidative stress biomarkers. • Radiological evidence of fracture union. Secondary outcomes: • Drug utilization pattern. • Time to fracture healing. • Adverse drug reactions. Statistical Analysis Data were analyzed using SPSS software. Continuous variables were expressed as mean ± standard deviation. Comparisons were performed using paired t-tests and ANOVA. A p-value <0.05 was considered statistically significant.

Demographic Characteristics

Among 120 patients:

• Males: 72 (60%)
• Females: 48 (40%)

Mean age: 42.8 ± 13.4 years.

Fracture Distribution

Oxidative Stress Biomarkers

MDA levels were significantly elevated at baseline and gradually decreased during follow-up.

Antioxidant markers including SOD, catalase, and GSH showed progressive improvement with fracture healing.

Drug Utilization Pattern

Association with Fracture Healing

Patients demonstrating lower MDA levels and higher antioxidant enzyme activity experienced faster radiological union and reduced recovery time.

The present study demonstrates a significant relationship between oxidative stress and fracture healing. Elevated MDA levels observed immediately after injury indicate increased lipid peroxidation secondary to tissue damage. Progressive reductions in oxidative stress markers during follow-up suggest restoration of redox balance as healing progresses. Similar findings have been reported in previous experimental and clinical studies evaluating oxidative stress in skeletal injury. Calcium and vitamin D supplementation were frequently prescribed owing to their established roles in bone mineralization and remodeling. Appropriate analgesic therapy contributed to improved patient comfort and rehabilitation. Monitoring oxidative stress biomarkers may serve as a useful adjunct in predicting fracture healing outcomes and identifying patients at risk for delayed union.

Limitations

• Single-center study.
• Moderate sample size.
• Limited duration of follow-up.
• Lack of advanced molecular biomarker analysis.

Oxidative stress significantly influences fracture healing in orthopedic patients. Elevated MDA and reduced antioxidant enzyme activities are associated with delayed recovery. Pharmacological interventions including calcium, vitamin D, and appropriate analgesic therapy contribute positively to fracture healing. Routine monitoring of oxidative stress biomarkers may enhance clinical decision-making and improve patient outcomes.

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