Product Details
SANTIM Anti-dislocation Dual Mobility: Durable Metal and PE Liners from China Suppliers and Factory
Special Description
Dual Mobility PE Liner-Femoral Head
Normal range of motion (80%)
Dual Mobility Metal Liner-Dual Mobility PE Liner
Additional Range of Motion (20%)



The metal liner can match the conventional acetabular cup, realizing the flexible matching of multiple liners in one acetabular cup.
Large diameter liner can effectively enhance the stability of joints and basically achieve "zero" dislocation rate.
Screw fixation can be selected during the operation to avoid early loosening.
Dual Mobility structure design, which can provide a maximum range of motion of more than 200 degrees.
Provide better guidance for the installation of the metal liner, ensure that the insertion direction of the metal liner is align with the axis of the acetabular cup, and is convenient for operation.
Mirror polishing on the inside of metal liner can be compatible with movable polyethylene liner and ceramic head to form a safe and effective low friction interface.
Special Instrumentation
Anti-dislocation Dual Mobility Metal Liner
| Specification | Acetabular Cup | Femoral Head |
|---|---|---|
| 38 | 46 | 24 |
| 40 | 48 | |
| 42 | 50 | 28 |
| 44 | 52 | |
| 46 | 54 | |
| 48 | 56 | |
| 50 | 58 |
Anti-dislocation Dual Mobility PE Liner
| Specification | Acetabular Cup | Femoral Head |
|---|---|---|
| 46 | 46 | 24 |
| 48 | 48 | |
| 50 | 50 | 28 |
| 52 | 52 | |
| 54 | 54 | |
| 56 | 56 | |
| 58 | 58 |
Frequently Asked Questions
1. What are the indications for this Dual Mobility hip implant?
- Primary and Complex Primary Total Hip Arthroplasty (THA): Primary or secondary osteoarthritis, hip dysplasia (Developmental Dysplasia of the Hip, DDH), avascular necrosis of the femoral head, displaced femoral neck fractures, and post-traumatic osteoarthritis.
- Patients at High Risk of Dislocation: Cognitive impairment (e.g., dementia), insufficient lower limb muscle strength (e.g., cerebral palsy, Parkinson's disease).
- Lumbar and Spinal Disorders Involving the Hip Joint: Ankylosing spondylitis, lumbar fusion surgery, spinal fusion surgery.
- Special Activities (High Mobility): Yoga, dance, and martial arts enthusiasts.
- Revision Patients: Abductor muscle function impairment.
2. What are the contraindications for this hip implant?
- Active infections in the hip or other parts of the body.
- Significant organ diseases that are not effectively controlled.
- Severe vascular disease in the lower limbs.
- Frail individuals or those unable to tolerate surgery due to systemic diseases.
3. Can patients undergo MRI scans after implantation?
Yes, the implant is made from non-magnetic materials like titanium, titanium alloys, and cobalt-chromium-molybdenum alloys, ensuring MRI safety. JUST MEDICAL's products meet these standards, but always inform your radiologist before scanning.
4. Does this product support cemented or cementless fixation?
This implant is designed exclusively for cementless fixation. It promotes excellent long-term bone growth for stable and durable fixation, completely eliminating the need for bone cement.
5. What range of motion (ROM) improvements does the Dual Mobility design offer?
The ROM can be increased to over 200°, significantly surpassing industry standards. Compared to traditional prostheses, this dual mobility design can increase flexion by 30°, adduction by 15°, and external rotation by 22°.
6. How does this implant design reduce the risk of dislocation?
The implant utilizes a large diameter liner to enhance the stability of joints, basically achieving a "zero" dislocation rate. Additionally, the dual mobility structure distributes motion between two interfaces: Interface 1 (PE Liner-Femoral Head) handles 80% of normal motion, and Interface 2 (Metal Liner-PE Liner) provides an additional 20% range of motion.






