| Journal of Clinical Medicine Research, ISSN 1918-3003 print, 1918-3011 online, Open Access |
| Article copyright, the authors; Journal compilation copyright, J Clin Med Res and Elmer Press Inc |
| Journal website http://www.jocmr.org |
Original Article
Volume 7, Number 6, June 2015, pages 460-463
Does the Removal of Spinal Implants Reduce Back Pain?
Tables
| N | Minimum | Maximum | Mean | Standard deviation | |
|---|---|---|---|---|---|
| Age | 25 | 27 | 65 | 44.40 | 11.762 |
| VAS before removal | 25 | 7.00 | 9.00 | 8.08 | 0.640 |
| VAS after removal | 25 | 1.00 | 9.00 | 3.36 | 2.643 |
| Decrease in VAS | 25 | 0.00 | 7.00 | 4.72 | 2.389 |
| Sum of squares | df | Mean square | F | Sig. | |
|---|---|---|---|---|---|
| Age | |||||
| Between groups | 1,165,778 | 2 | 582,889 | 5,953 | 0.009 |
| Within groups | 2,154,222 | 22 | 97,919 | ||
| Total | 3,320,000 | 24 | |||
| VAS before removal | |||||
| Between groups | 4,034 | 2 | 2,017 | 7,644 | 0.003 |
| Within groups | 5,806 | 22 | 0.264 | ||
| Total | 9,840 | 24 | |||
| VAS after removal | |||||
| Between groups | 67,954 | 2 | 33,977 | 7,490 | 0.003 |
| Within groups | 99,806 | 22 | 4,537 | ||
| Total | 167,760 | 24 | |||
| Decrease in VAS | |||||
| Between groups | 39,818 | 2 | 19,909 | 4,505 | 0.023 |
| Within groups | 97,222 | 22 | 4,419 | ||
| Total | 137,040 | 24 |
| Dependent variable | (I) diagnosis | (J) diagnosis | Mean difference (I-J) | Standard error | Sig. | 95% confidence interval | |
|---|---|---|---|---|---|---|---|
| Lower bound | Upper bound | ||||||
| Age | Group I | Group II | -13.94 | 4.36 | 0.011 | -24.91 | -2.98 |
| Group III | -0.94 | 5.94 | 0.986 | -15.88 | 13.99 | ||
| Group II | Group III | 13.00 | 5.71 | 0.081 | -1.35 | 27.35 | |
| VAS before removal | Group I | Group II | -0.027 | 0.22 | 0.992 | -0.59 | 0.54 |
| Group III | -1.11 | 0.30 | 0.004 | -1.88 | -0.33 | ||
| Group II | Group III | -1.08 | 0.296 | 0.004 | -1.82 | -0.33 | |
| VAS after removal | Group I | Group II | -0.97 | 0.939 | 0.563 | -3.33 | 1.38 |
| Group III | -4.88 | 1.27 | 0.003 | -8.10 | -1.67 | ||
| Group II | Group III | -3.91 | 1.22 | 0.011 | -7.00 | -0.82 | |
| Decrease in VAS | Group I | Group II | 0.94 | 0.92 | 0.573 | -1.38 | 3.27 |
| Group III | 3.77 | 1.26 | 0.018 | 0.60 | 6.95 | ||
| Group II | Group III | 2.83 | 1.21 | 0.072 | -0.21 | 5.88 | |
| n | Age | Gender | Prior diagnosis | VAS before removal | VAS after removal | VAS difference |
|---|---|---|---|---|---|---|
| 1 | 35 | M | L1 fracture | 8 | 2 | 6 |
| 2 | 56 | M | Stenosis | 7 | 2 | 5 |
| 3 | 64 | M | Stenosis | 8 | 2 | 6 |
| 4 | 29 | M | L2 fracture | 9 | 3 | 6 |
| 5 | 44 | F | Stenosis | 8 | 2 | 6 |
| 6 | 65 | M | L1 fracture | 9 | 3 | 6 |
| 7 | 28 | M | L3 fracture | 8 | 2 | 6 |
| 8 | 36 | F | L2 fracture | 7 | 2 | 5 |
| 9 | 27 | M | L4 fracture | 7 | 2 | 5 |
| 10 | 55 | F | Stenosis | 8 | 3 | 5 |
| 11 | 65 | M | Stenosis | 8 | 2 | 6 |
| 12 | 49 | F | Stenosis | 8 | 2 | 6 |
| 13 | 38 | M | Recurrent disk herniation | 9 | 9 | 0 |
| 14 | 44 | F | Stenosis | 8 | 2 | 6 |
| 15 | 29 | M | L4 fracture | 7 | 1 | 6 |
| 16 | 33 | M | L1 fracture | 8 | 1 | 7 |
| 17 | 44 | F | Stenosis | 8 | 1 | 7 |
| 18 | 55 | F | Stenosis | 8 | 8 | 0 |
| 19 | 45 | M | Stenosis | 8 | 3 | 5 |
| 20 | 46 | M | Stenosis | 8 | 2 | 6 |
| 21 | 44 | M | Recurrent disk herniation | 9 | 2 | 7 |
| 22 | 56 | M | L3 fracture | 8 | 3 | 5 |
| 23 | 51 | F | Stenosis | 8 | 8 | 0 |
| 24 | 34 | M | Recurrent disk herniation | 9 | 8 | 1 |
| 25 | 38 | M | Recurrent disk herniation | 9 | 9 | 0 |