Systematic Review: Early versus Delayed Surgical Fixation of Long Bone Fractures in Polytrauma Patients – Impact on Morbidity, Mortality, and Functional Outcomes

Abstract Background: The question of optimal surgical timing for long bone fractures in polytrauma patients continues to generate considerable debate within the trauma surgery community. Three principal management strategies have emerged Early Total Care (ETC), advocating for immediate definitive surgical stabilization; Damage Control Orthopedics (DCO), which emphasizes initial temporary stabilization followed by staged definitive reconstruction; and Early Appropriate Care (EAC), a tailored approach that combines the benefits of both strategies based on physiological response to resuscitation. This systematic review synthesizes contemporary evidence comparing these approaches, with particular attention to their effects on patient morbidity, mortality, and functional recovery. Methods: We performed an extensive literature search encompassing PubMed and Cochrane CENTRAL databases, identifying systematic reviews, meta-analyses, randomized controlled trials, and cohort studies published through October 2025. Our search targeted investigations comparing early surgical intervention (typically within 24-36 hours of injury) against delayed approaches (beyond 36 hours) for long bone fractures in adult polytrauma populations. We prioritized studies reporting mortality rates, major complications including Acute Respiratory Distress Syndrome (ARDS) and Multiple Organ Failure (MOF), and long-term functional outcomes. Results: Our literature analysis identified substantial evidence from recent systematic reviews and meta-analyses. The evidence demonstrates that physiologically stable polytrauma patients benefit from early definitive fixation (ETC), particularly intramedullary stabilization of femoral fractures, which correlates with reduced intensive care unit stays and shorter mechanical ventilation periods. Unstable or physiologically compromised patients require DCO strategies to prevent the "second hit" phenomenon and minimize systemic inflammatory complications. The emerging EAC protocol offers a middle ground for borderline patients who demonstrate adequate response to resuscitation, allowing definitive fixation within 36 hours when specific physiological criteria are met (lactate <4.0 mmol/L, pH ≥7.25, base excess ≥-5.5 mmol/L). Notably, patients with concurrent severe traumatic brain injury do not demonstrate worsened outcomes with early fixation. Significant heterogeneity exists across studies regarding temporal definitions and patient stratification criteria. Conclusion: Determining appropriate timing for long bone fracture fixation in polytrauma patients necessitates individualized physiological assessment rather than adherence to rigid temporal protocols. Stable patients derive clear benefits from ETC approaches, unstable patients require DCO management to prevent potentially catastrophic complications, and borderline patients who respond to resuscitation may benefit from the EAC protocol. This review documents the field's evolution from dichotomous ETC versus DCO protocols toward a three-tiered, physiology-driven decision-making model. Future investigations should focus on standardizing patient selection criteria and refining treatment algorithms through high-quality prospective research. Keywords: Polytrauma, long bone fractures, early total care, damage control orthopedics, early appropriate care, mortality, morbidity, ARDS, functional outcomes, surgical timing.