Early-Stage Chronic Kidney Disease and Hip Fracture Mortality

Area of Science:

• Nephrology
• Orthopaedic Surgery
• Geriatric Medicine

Background:

• Chronic kidney disease (CKD) is a known predictor of mortality following hip fracture.
• The differential impact of early-stage versus end-stage CKD on post-hip fracture mortality remains unclear.
• Operative treatment of hip fractures presents significant risks, particularly for patients with comorbid conditions.

Purpose of the Study:

• To investigate the association between different stages of chronic kidney disease (CKD) and mortality after surgical hip fracture repair.
• To determine if specific stages of CKD confer a greater risk of mortality post-operatively.
• To inform orthopaedic surgeons about risk stratification for CKD patients undergoing hip fracture surgery.

Main Methods:

• Retrospective analysis of 498 patients undergoing operative hip fracture treatment.
• Classification of patients based on the presence and stage of chronic kidney disease (CKD).
• Comparison of 90-day and 1-year post-operative mortality rates between CKD and non-CKD groups, and across CKD stages.

Main Results:

• Patients with CKD exhibited significantly higher mortality at 90 days (HR 1.69) and 1 year (HR 1.84) compared to those without CKD.
• Subgroup analysis revealed that only Stage 3 CKD was independently associated with increased post-operative mortality.
• No significant difference in mortality was observed between early-stage CKD and non-CKD patients.

Conclusions:

• Chronic kidney disease, particularly Stage 3, is a significant independent risk factor for mortality following operative hip fracture treatment.
• Orthopaedic surgeons should consider CKD staging when assessing peri-operative risk in hip fracture patients.
• Proactive identification and management strategies for CKD patients may improve outcomes after hip fracture surgery.