TABLE I.
Comparison of Osseointegration Implant Systems
| OPRA | ILP | OPL | Compress | POP | ITAP | |
|---|---|---|---|---|---|---|
| Material | Titanium | Cobalt-chromium-molybdenum | Titanium | Titanium | Titanium | Titanium |
| Retention | Threaded | Press-fit | Press-fit | Cross-pin | Press-fit | Press-fit |
| Anatomic suitability | Long bones, digits | Long bones | Long bones, pelvis | Humerus, femur | Femur | Humerus, femur |
| Bone-implant interface | Laser-etched | Czech hedgehog 1.5 mm | Plasma-sprayed up to 0.5 mm | Porous-coated, axial compression | Porous-coated | Hydroxyapatite |
| Skin-implant interface | Polished | Polished | Polished | Polished | Polished | Hydroxyapatite |
| Surgical stages | 2 | 2 | 1 | 1 | 2 | 1 |
| Months from implantation to full weight | 3 to 18 | 2 to 3 | 2 to 3 | Unspecified | Unspecified | Unspecified |