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Healing Against the Odds: Successful Bone Union in Intertrochanteric Femur Fracture Despite Z-Effect and Implant
Kushal Gohil1, Sangeet Gawhale1, Niranjan Sunil Ghag1
1Department of Orthopedics, Grant Government Medical College and Sir JJ Group of Hospitals, Mumbai, Maharashtra, India.
Introduction:
Intertrochanteric femur fractures are common in the elderly, often resulting from low-energy trauma such as falls. Standard treatment typically involves internal fixation, which generally leads to good outcomes. However, complications like the Z-effect, where proximal screws of an intramedullary nail migrate in opposite directions, and implant failure can significantly impact healing.
Case Report:
A 58-year-old male patient sustained an intertrochanteric femur fracture following a fall. The fracture was treated with an intramedullary nail. Postoperatively, the patient developed the Z-effect, characterized by the migration of proximal screws in opposite directions. Subsequently, the implant failed, resulting in a broken nail and screw. Despite these complications, radiographic evaluations over time revealed progressive healing, and the patient eventually achieved complete bony union.
Conclusion:
This case underscores the potential for successful bone healing even in the presence of significant complications such as the Z-effect and implant failure. The patient's complete bony union despite these challenges emphasizes the importance of diligent follow-up and adaptive management strategies in orthopedic practice. This case contributes to the understanding of fracture healing dynamics and highlights the resilience of bone healing mechanisms.

