Table 2 CT Scan Frequency for each Procedure by Year: All Patients at 6 months Follow-up
From: Utilization of CT scanning associated with complex spine surgery
Procedure | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 |
|---|---|---|---|---|---|---|---|---|
Cervical Fusion, n (%) | (N = 105) | (N = 135) | (N = 201) | (N = 209) | (N = 249) | (N = 291) | (N = 382) | (N = 339) |
No. of Scans 1 | 81 (77) | 107 (79) | 142 (71) | 156 (75) | 174 (70) | 214 (74) | 297 (78) | 274 (81) |
2 | 17 (16) | 18 (13) | 40 (20) | 39 (19) | 47 (19) | 53 (18) | 64 (17) | 48 (14) |
3 | * (*) | * (*) | 11 (5) | * (*) | 17 (7) | 19 (7) | 15 (4) | 11 (3) |
4+ | * (*) | * (*) | * (*) | * (*) | 11 (4) | * (*) | * (*) | * (*) |
Lumbar Fusion, n (%) | (N = 119) | (N = 165) | (N = 220) | (N = 253) | (N = 335) | (N = 413) | (N = 521) | (N = 474) |
No. of Scans 1 | 88 (74) | 137 (83) | 167 (76) | 207 (82) | 264 (79) | 332 (80) | 430 (83) | 391 (82) |
2 | 24 (20) | 17 (10) | 41 (19) | 31 (12) | 54 (16) | 63 (15) | 65 (12) | 52 (11) |
3 | * (*) | * (*) | * (*) | * (*) | * (*) | 11 (3) | 22 (4) | 22 (5) |
4+ | * (*) | * (*) | * (*) | * (*) | * (*) | * (*) | * (*) | * (*) |
Other, n (%) | (N = 223) | (N = 305) | (N = 430) | (N = 461) | (N = 563) | (N = 690) | (N = 909) | (N = 798) |
No. of Scans 1 | 169 (76) | 246 (81) | 317 (74) | 358 (78) | 420 (75) | 528 (77) | 722 (79) | 646 (81) |
2 | 39 (17) | 37 (12) | 84 (20) | 70 (15) | 96 (17) | 117 (17) | 134 (15) | 99 (12) |
3 | * (*) | 15 (5) | 14 (3) | 20 (4) | 24 (4) | 31 (4) | 41 (5) | 37 (5) |
4+ | * (*) | * (*) | 15 (3) | 13 (3) | 23 (4) | 14 (2) | 12 (1) | 16 (2) |
Discectomy, n (%) | (N = 228) | (N = 314) | (N = 313) | (N = 392) | (N = 300) | (N = 264) | (N = 309) | (N = 279) |
No. of Scans 1 | 154 (68) | 243 (77) | 233 (74) | 281 (72) | 224 (75) | 196 (74) | 242 (78) | 214 (77) |
2 | 56 (25) | 55 (18) | 55 (18) | 78 (20) | 53 (18) | 51 (19 | 42 (14) | 48 (17) |
3 | 13 (6) | * (*) | 14 (4) | 21 (5) | 11 (4) | * (*) | 15 (5) | * (*) |
4+ | * (*) | * (*) | 11 (4) | 12 (3) | 12 (4) | * (*) | * (*) | * (*) |
Laminectomy, n (%) | (N = 249) | (N = 325) | (N = 419) | (N = 475) | (N = 577) | (N = 695) | (N = 809) | (N = 774) |
No. of Scans 1 | 191 (77) | 242 (74) | 304 (73) | 328 (69) | 432 (75) | 509 (73) | 578 (71) | 587 (76) |
2 | 50 (20) | 58 (18) | 84 (20) | 109 (23) | 100 (17) | 131 (19) | 163 (20) | 131 (17) |
3 | * (*) | 13 (4) | 17 (4) | 27 (6) | 35 (6) | 32 (5) | 38 (5) | 29 (4) |
4+ | * (*) | 12 (4) | 14 (3) | 11 (2) | * (*) | 23 (3) | 30 (4) | 27 (3) |