Table 3.
Zone-Wise Distribution and Comparison of Techniques of Instrumentation Practices
| Technique of Instrumentation | PG-Endo, N (%) | PG-OB, N (%) | MDS-OB, N (%) | MDS-Endo, N (%) | p-value | |
|---|---|---|---|---|---|---|
| Eastern | Hand | 64 (47.1) | 72 (35.6) | 14 (11.2) | 10 (15.9) | <0.00010* |
| Rotary | 5 (3.7) | 29 (14.4) | 47 (37.6) | 3 (4.8) | ||
| Combination | 67 (49.3) | 101 (50.0) | 64 (51.2) | 50 (79.4) | ||
| Western | Hand | 35 (28.0) | 45 (22.1) | 24 (10.4) | 0 (0.0) | <0.00013* |
| Rotary | 31 (24.8) | 19 (9.3) | 134 (58.3) | 65 (73.0) | ||
| Combination | 59 (47.2) | 140 (68.6) | 72 (31.3) | 24 (27.0) | ||
| Northern | Hand | 7 (18.2) | 5 (9.7) | 0 (0.0) | 0 (0.0) | <0.00013* |
| Rotary | 0 (0.0) | 6 (19.4) | 45 (90.9) | 22 (84.6) | ||
| Combination | 27 (81.8) | 22 (71.0) | 6 (9.1) | 4 (15.4) | ||
| Southern | Hand | 0 (0.0) | 16 (22.9) | 2 (5.9) | 0 (0.0) | <0.00012* |
| Rotary | 1 (5.6) | 7 (10.0) | 17 (50.0) | 36 (54.5) | ||
| Combination | 17 (77.3) | 47 (67.1) | 15 (44.1) | 30 (45.5) | ||
| Central | Hand | 7 (25.9) | 4 (9.5) | 0 (0.0) | 0 (0.0) | <0.00013* |
| Rotary | 0 (0.0) | 8 (19.0) | 0 (0.0) | 4 (50.0) | ||
| Combination | 20 (74.1) | 30 (71.4) | 18 (100.0) | 4 (50.0) | ||
| p-value | <0.0001* | <0.0001* | <0.0001* | <0.0001* | ||
Notes: Chi-square test, *Indicates statistical significance.