Table 1.
Overview of cast alloy samples*
| Implant design | Sample number | Time in situ | Taper type | Damage score | Alloy type |
|---|---|---|---|---|---|
| (months) | |||||
| SA-1 | SA-1-1 | 127.6 | 12/14 | 1 | 1 |
| SA-1-2 | 48.5 | 12/14 | 3 | 2 | |
| SA-1-3 | 49.5 | 12/14 | 4 | 1 | |
| SA-1-4 | 83.1 | 12/14 | 4 | 1 | |
| SA-2 | SA-2-1 | 11.6 | 12/14 | 1 | 2 |
| SA-2-2 | 1.0 | 12/14 | 1 | 2 | |
| SA-2-3 | 5.9 | 12/14 | 1 | 2 | |
| SA-2-4 | 89.9 | 12/14 | 3 | 2 | |
| SA-3 | SA-3-1 | 37.7 | 12/14 | 1 | 2 |
| SA-3-2 | 112.5 | 12/14 | 1 | 2 | |
| SA-3-3 | 122.1 | 12/14 | 3 | 1 | |
| SA-3-4 | 129.9 | 12/14 | 2 | 2 |
* Alloys came from three stem designs made by three different manufacturers (SA-1, SA-2, and SA-3); there were four components per design (eg, SA-1-1, SA-1-2, etc); the damage score was a modified Goldberg score [12]; alloy type refers to alloys with a hard phase volume fraction of < 1% (Type 1) or 1%–5% (Type 2).