Table 3. National Trends of Bearing Surface Usage for Primary Total Hip Arthroplasty from 2007 to 2011.
| Variable | Year | |||||
|---|---|---|---|---|---|---|
| 2007 | 2008 | 2009 | 2010 | 2011 | Overall | |
| CoC | ||||||
| Total | 3,925 (71.6) | 4,413 (74.1) | 4,658 (76.3) | 5,092 (78.7) | 5,590 (81.4) | 23,678 (76.7) |
| Mean age (yr) | 56.0 | 56.7 | 57.2 | 57.6 | 57.5 | 57.1 |
| Sex | ||||||
| Male | 2,251 (57.4) | 2,444 (55.4) | 2,579 (55.4) | 2,704 (53.1) | 3,065 (54.8) | 13,043 (55.1) |
| Female | 1,674 (42.6) | 1,969 (44.6) | 2,079 (44.6) | 2,388 (46.9) | 2,525 (45.2) | 10,635 (44.9) |
| Mean charge ($) | 6,353 | 6,288 | 6,396 | 6,426 | 6,325 | 6,358 |
| CoP | ||||||
| Total | 522 (9.5) | 543 (9.1) | 400 (6.6) | 386 (6.0) | 412 (6.0) | 2,263 (7.3) |
| Mean age (yr) | 62.0 | 61.9 | 61.7 | 63.5 | 62.3 | 62.2 |
| Sex | ||||||
| Male | 243 (46.6) | 269 (49.5) | 193 (48.3) | 174 (45.1) | 185 (44.9) | 1,064 (47.0) |
| Female | 279 (53.4) | 274 (50.5) | 207 (51.8) | 212 (54.9) | 227 (55.1) | 1,199 (53.0) |
| Mean charge ($) | 5,679 | 5,810 | 5,791 | 5,999 | 6,073 | 5,870 |
| MoP | ||||||
| Total | 721 (13.1) | 735 (12.3) | 772 (12.6) | 772 (11.9) | 684 (10.0) | 3,684 (11.9) |
| Mean age (yr) | 63.1 | 63.6 | 62.7 | 62.4 | 63.5 | 63.0 |
| Sex | ||||||
| Male | 339 (47.0) | 324 (44.1) | 380 (49.2) | 368 (47.7) | 319 (46.6) | 1,730 (47.0) |
| Female | 382 (53.0) | 411 (55.9) | 392 (50.8) | 404 (52.3) | 365 (53.4) | 1,954 (53.0) |
| Mean charge ($) | 5,833 | 6,064 | 6,277 | 6,124 | 6,032 | 6,066 |
| MoM | ||||||
| Total | 316 (5.8) | 268 (4.5) | 274 (4.5) | 218 (3.4) | 180 (2.6) | 1,256 (4.1) |
| Mean age (yr) | 57.3 | 58.5 | 56.5 | 56.0 | 52.2 | 56.8 |
| Sex | ||||||
| Male | 181 (57.3) | 144 (53.7) | 156 (56.9) | 113 (51.8) | 91 (50.6) | 685 (54.5) |
| Female | 135 (42.7) | 124 (46.3) | 118 (43.1) | 105 (48.2) | 89 (49.4) | 571 (45.5) |
| Mean charge ($) | 6,183 | 6,242 | 6,058 | 6,274 | 6,060 | 6,163 |
Values are presented as number (%) unless otherwise indicated.
CoC: ceramic-on-ceramic, CoP: ceramic-on-polyethylene, MoP: metal-on-polyethylene, MoM: metal-on-metal.