## Introduction
In geriatric medicine, a broken hip is a life-threatening emergency. The goal of surgery for a **femoral neck fracture** in an elderly patient is not just “repair,” but **Rapid Stabilization** to allow the patient to sit up and walk within 24 hours. The **Bipolar Hip Prosthesis (Hemiarthroplasty)** is the workhorse of this strategy.
## What is a Bipolar Prosthesis?
A bipolar system consists of a femoral stem and a specialized “dual-mobility” head.
1. **Inner Bearing:** A small metal head moves inside a polyethylene liner.
2. **Outer Bearing:** The large outer metal shell moves against the patient’s natural acetabular cartilage.
## Key Advantages for the Elderly
* **Reduced Dislocation:** The large diameter of the outer shell makes it extremely difficult for the hip to dislocate, which is critical for patients who may not follow post-op movement restrictions.
* **Shorter Surgery:** Because the surgeon does not need to replace the acetabulum (socket), the surgery is faster and involves less blood loss.
* **Immediate Weight-Bearing:** Patients can typically stand and walk with a walker the day after surgery.
## Ortholyx Bipolar Technical Specs
Ortholyx Bipolar heads are precision-machined from **Cobalt-Chrome** and feature an optimized “lock-on” mechanism for the polyethylene liner. They are compatible with both cemented and cementless Ortholyx femoral stems.
## Conclusion
For the elderly trauma patient, speed and stability are the primary clinical goals. The Bipolar Hip Prosthesis from Ortholyx delivers on both, helping to reduce the systemic complications associated with prolonged bed rest after a hip fracture.