| Number | Name | Date | Kind |
|---|---|---|---|
| 1058234 | Hamilton | Apr 1913 | |
| 3896824 | Thornton | Jul 1975 | |
| 3929144 | Tarrson et al. | Dec 1975 | |
| 4011658 | Tarrson et al. | Mar 1977 | |
| 4319377 | Tarrson et al. | Mar 1982 | |
| 4449933 | Forni | May 1984 | |
| 4450849 | Cerceo et al. | May 1984 | |
| 4462136 | Nakao et al. | Jul 1984 | |
| 4911187 | Castillo | Mar 1990 | |
| 5609170 | Roth | Mar 1997 | |
| 5704388 | Freeman | Jan 1998 |
| Entry |
|---|
| Advisory statement—American Academy of Orthopedic Surgeons, 1997. |