TABLE III.
| Registry‡ |
||||||
| U.S. (Kaiser Permanente) | Australia | Italy (Emilia-Romagna) | U.S. (HealthEast) | Norway | Spain (Catalan) | |
| Age of forty-five to sixty-four years | ||||||
| Uncemented | ||||||
| Sex | ||||||
| Male | 3141 (43.6) | 14,799 (49.4) | 2448 (46.2) | 382 (46.1) | 1185 (39.1) | 491 (61.9) |
| Female | 4067 (56.4) | 15,147 (50.6) | 2849 (53.8) | 446 (53.9) | 1845 (60.9) | 302 (38.1) |
| Bearing type | ||||||
| Ceramic on ceramic | 300 (4.2) | 15,691 (52.4) | 3344 (63.1) | 124 (15) | 968 (31.9) | 186 (23.5) |
| Ceramic on conventional polyethylene | 25 (0.3) | 438 (1.5) | 729 (13.8) | 759 (25) | 113 (14.2) | |
| Ceramic on highly cross-linked polyethylene | 2184 (30.3) | 3894 (13) | 298 (5.6) | 346 (41.8) | 892 (29.4) | 89 (11.2) |
| Metal on conventional polyethylene | 171 (2.4) | 1085 (3.6) | 641 (12.1) | 6 (0.7) | 243 (8) | 204 (25.7) |
| Metal on highly cross-linked polyethylene | 4528 (62.8) | 8838 (29.5) | 285 (5.4) | 352 (42.5) | 168 (5.5) | 201 (25.3) |
| Head size | ||||||
| <32 mm | 1529 (21.2) | 9598 (32.1) | 2769 (52.3) | 267 (32.2) | 1936 (63.9) | 497 (62.7) |
| ≥32 mm | 5679 (78.8) | 20,348 (67.9) | 2528 (47.7) | 561 (67.8) | 1094 (36.1) | 296 (37.3) |
| Hybrid | ||||||
| Sex | ||||||
| Male | 106 (30.8) | 4649 (46.5) | 89 (44.5) | 29 (46) | 142 (39.9) | 14 (48.3) |
| Female | 238 (69.2) | 5352 (53.5) | 111 (55.5) | 34 (54) | 214 (60.1) | 15 (51.7) |
| Bearing type | ||||||
| Ceramic on ceramic | 3 (0.9) | 2603 (26) | 28 (14) | 22 (6.2) | ||
| Ceramic on conventional polyethylene | 108 (1.1) | 72 (36) | 92 (25.8) | 4 (13.8) | ||
| Ceramic on highly cross-linked polyethylene | 31 (9) | 1289 (12.9) | 3 (1.5) | 6 (9.5) | 25 (7) | 1 (3.4) |
| Metal on conventional polyethylene | 59 (17.2) | 805 (8) | 82 (41) | 187 (52.5) | 8 (27.6) | |
| Metal on highly cross-linked polyethylene | 251 (73) | 5196 (52) | 15 (7.5) | 57 (90.5) | 30 (8.4) | 16 (55.2) |
| Head size | ||||||
| <32 mm | 169 (49.1) | 5681 (56.8) | 182 (91) | 53 (84.1) | 314 (88.2) | 22 (75.9) |
| ≥32 mm | 175 (50.9) | 4320 (43.2) | 18 (9) | 10 (15.9) | 42 (11.8) | 7 (24.1) |
| Cemented | ||||||
| Sex | ||||||
| Male | 10 (38.5) | 1080 (46) | 11 (31.4) | 1845 (33.9) | ||
| Female | 16 (61.5) | 1267 (54) | 24 (68.6) | 3595 (66.1) | 1 (100) | |
| Bearing type | ||||||
| Ceramic on conventional polyethylene | 53 (2.3) | 24 (68.6) | 1973 (36.3) | |||
| Ceramic on highly cross-linked polyethylene | 6 (23.1) | 52 (2.2) | 75 (1.4) | |||
| Metal on conventional polyethylene | 3 (11.5) | 795 (33.9) | 11 (31.4) | 3296 (60.6) | 1 (100) | |
| Metal on highly cross-linked polyethylene | 17 (65.4) | 1447 (61.7) | 96 (1.8) | |||
| Head size | ||||||
| <32 mm | 9 (34.6) | 2225 (94.8) | 35 (100) | 5374 (98.8) | 1 (100) | |
| ≥32 mm | 17 (65.4) | 122 (5.2) | 66 (1.2) | |||
| Age of sixty-five to seventy-four years | ||||||
| Uncemented | ||||||
| Sex | ||||||
| Male | 2833 (40.3) | 13,559 (50) | 3859 (41.9) | 241 (42.7) | 634 (39.2) | 771 (57.7) |
| Female | 4202 (59.7) | 13,547 (50) | 5359 (58.1) | 323 (57.3) | 982 (60.8) | 565 (42.3) |
| Bearing type | ||||||
| Ceramic on ceramic | 39 (0.6) | 9506 (35.1) | 4308 (46.7) | 12 (2.1) | 557 (34.5) | 155 (11.6) |
| Ceramic on conventional polyethylene | 16 (0.2) | 590 (2.2) | 1871 (20.3) | 485 (30) | 148 (11.1) | |
| Ceramic on highly cross-linked polyethylene | 937 (13.3) | 3401 (12.5) | 641 (7) | 104 (18.4) | 341 (21.1) | 71 (5.3) |
| Metal on conventional polyethylene | 236 (3.4) | 1363 (5) | 1613 (17.5) | 3 (0.5) | 141 (8.7) | 556 (41.6) |
| Metal on highly cross-linked polyethylene | 5807 (82.5) | 12,246 (45.2) | 785 (8.5) | 445 (78.9) | 92 (5.7) | 406 (30.4) |
| Head size | ||||||
| <32 mm | 1373 (19.5) | 9573 (35.3) | 5310 (57.6) | 115 (20.4) | 971 (60.1) | 973 (72.8) |
| ≥32 mm | 5662 (80.5) | 17,533 (64.7) | 3908 (42.4) | 449 (79.6) | 645 (39.9) | 363 (27.2) |
| Hybrid | ||||||
| Sex | ||||||
| Male | 391 (31.8) | 7806 (42.1) | 523 (34.2) | 58 (29.3) | 90 (35.2) | 109 (46.2) |
| Female | 837 (68.2) | 10,742 (57.9) | 1008 (65.8) | 140 (70.7) | 166 (64.8) | 127 (53.8) |
| Bearing type | ||||||
| Ceramic on ceramic | 1974 (10.6) | 135 (8.8) | 1 (0.5) | 4 (1.6) | ||
| Ceramic on conventional polyethylene | 12 (1) | 189 (1) | 429 (28) | 29 (11.3) | 44 (18.6) | |
| Ceramic on highly cross-linked polyethylene | 49 (4) | 1573 (8.5) | 50 (3.3) | 6 (2.3) | 10 (4.2) | |
| Metal on conventional polyethylene | 355 (28.9) | 2057 (11.1) | 763 (49.8) | 10 (5.1) | 203 (79.3) | 113 (47.9) |
| Metal on highly cross-linked polyethylene | 812 (66.1) | 12,755 (68.8) | 154 (10.1) | 187 (94.4) | 14 (5.5) | 69 (29.2) |
| Head size | ||||||
| <32 mm | 592 (48.2) | 11,240 (60.6) | 1397 (91.2) | 127 (64.1) | 241 (94.1) | 211 (89.4) |
| ≥32 mm | 636 (51.8) | 7308 (39.4) | 134 (8.8) | 71 (35.9) | 15 (5.9) | 25 (10.6) |
| Cemented | ||||||
| Sex | ||||||
| Male | 11 (29.7) | 2304 (43) | 87 (29.3) | 4057 (30.3) | 4 (23.5) | |
| Female | 26 (70.3) | 3054 (57) | 210 (70.7) | 9321 (69.7) | 13 (76.5) | |
| Bearing type | ||||||
| Ceramic on conventional polyethylene | 82 (1.5) | 119 (40.1) | 3776 (28.2) | |||
| Ceramic on highly cross-linked polyethylene | 1 (2.7) | 71 (1.3) | 2 (0.7) | 208 (1.6) | ||
| Metal on conventional polyethylene | 6 (16.2) | 1930 (36) | 149 (50.2) | 8856 (66.2) | 17 (100) | |
| Metal on highly cross-linked polyethylene | 30 (81.1) | 3275 (61.1) | 27 (9.1) | 538 (4) | ||
| Head size | ||||||
| <32 mm | 13 (35.1) | 4850 (90.5) | 290 (97.6) | 12,965 (96.9) | 15 (88.2) | |
| ≥32 mm | 24 (64.9) | 508 (9.5) | 7 (2.4) | 413 (3.1) | 2 (11.8) | |
| Age of seventy-five years or more | ||||||
| Uncemented | ||||||
| Sex | ||||||
| Male | 1953 (37) | 7701 (43.8) | 2028 (35.1) | 152 (38.9) | 360 (31.6) | 879 (43.7) |
| Female | 3331 (63) | 9867 (56.2) | 3749 (64.9) | 239 (61.1) | 780 (68.4) | 1132 (56.3) |
| Bearing type | ||||||
| Ceramic on ceramic | 7 (0.1) | 3914 (22.3) | 1801 (31.2) | 1 (0.3) | 223 (19.6) | 64 (3.2) |
| Ceramic on conventional polyethylene | 11 (0.2) | 429 (2.4) | 1310 (22.7) | 386 (33.9) | 112 (5.6) | |
| Ceramic on highly cross-linked polyethylene | 369 (7) | 1799 (10.2) | 457 (7.9) | 24 (6.1) | 166 (14.6) | 89 (4.4) |
| Metal on conventional polyethylene | 234 (4.4) | 1199 (6.8) | 1491 (25.8) | 5 (1.3) | 220 (19.3) | 968 (48.1) |
| Metal on highly cross-linked polyethylene | 4663 (88.2) | 10,227 (58.2) | 718 (12.4) | 361 (92.3) | 145 (12.7) | 778 (38.7) |
| Head size | ||||||
| <32 mm | 990 (18.7) | 6459 (36.8) | 3498 (60.6) | 51 (13) | 787 (69) | 1600 (79.6) |
| ≥32 mm | 4294 (81.3) | 11,109 (63.2) | 2279 (39.4) | 340 (87) | 353 (31) | 411 (20.4) |
| Hybrid | ||||||
| Sex | ||||||
| Male | 523 (26.2) | 7658 (34.7) | 559 (31.9) | 103 (25.7) | 41 (25.8) | 472 (41.3) |
| Female | 1471 (73.8) | 14,407 (65.3) | 1191 (68.1) | 298 (74.3) | 118 (74.2) | 671 (58.7) |
| Bearing type | ||||||
| Ceramic on ceramic | 1177 (5.3) | 187 (10.7) | 2 (1.3) | 5 (0.4) | ||
| Ceramic on conventional polyethylene | 13 (0.7) | 141 (0.6) | 418 (23.9) | 16 (10.1) | 122 (10.7) | |
| Ceramic on highly cross-linked polyethylene | 58 (2.9) | 1167 (5.3) | 114 (6.5) | 3 (0.7) | 3 (1.9) | 11 (1) |
| Metal on conventional polyethylene | 421 (21.1) | 2363 (10.7) | 816 (46.6) | 22 (5.5) | 126 (79.2) | 652 (57) |
| Metal on highly cross-linked polyethylene | 1502 (75.3) | 17,217 (78) | 215 (12.3) | 376 (93.8) | 12 (7.5) | 353 (30.9) |
| Head size | ||||||
| <32 mm | 739 (37.1) | 12,440 (56.4) | 1482 (84.7) | 201 (50.1) | 151 (95) | 1000 (87.5) |
| ≥32 mm | 1255 (62.9) | 9625 (43.6) | 268 (15.3) | 200 (49.9) | 8 (5) | 143 (12.5) |
| Cemented | ||||||
| Sex | ||||||
| Male | 27 (27) | 2581 (33.4) | 416 (25.5) | 4241 (26.9) | 185 (30.2) | |
| Female | 73 (73) | 5146 (66.6) | 1216 (74.5) | 5 (100) | 11,539 (73.1) | 427 (69.8) |
| Bearing type | ||||||
| Ceramic on conventional polyethylene | 63 (0.8) | 244 (15) | 3902 (24.7) | 5 (0.8) | ||
| Ceramic on highly cross-linked polyethylene | 5 (5) | 79 (1) | 29 (1.8) | 161 (1) | ||
| Metal on conventional polyethylene | 13 (13) | 2927 (37.9) | 1031 (63.2) | 5 (100) | 11,078 (70.2) | 607 (99.2) |
| Metal on highly cross-linked polyethylene | 82 (82) | 4658 (60.3) | 328 (20.1) | 639 (4) | ||
| Head size | ||||||
| <32 mm | 17 (17) | 6364 (82.4) | 1600 (98) | 5 (100) | 14,918 (94.5) | 562 (91.8) |
| ≥32 mm | 83 (83) | 1363 (17.6) | 32 (2) | 862 (5.5) | 50 (8.2) | |
*
This table excludes patients under the age of forty-five years, reverse hybrids, and cemented ceramic-on-ceramic bearings.
†
Some cells of the table are empty because bearings and age groups are seldom implanted with certain modes of fixation. If the register has relatively few cases presented, it is possible that cells remain empty.
‡
The values are given as the number of implants, with the percentage in parentheses.