Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 4 Risk of injuring the ARLM using reamers with different diameters and the safety zone
| Â | Â | Diameter | Safety zone (mm) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
7 mm | 8 mm | 9 mm | 10 mm | |||||||
r | R | r | R | r | R | r | R | |||
Patients | Chinese | 2/91 (2.2%) | 7/91 (7.7%) | 5/91 (5.5%) | 11/91 (12.1%) | 7/91 (7.7%) | 14/91 (15.4%) | 10/91 (11.0%) | 19/91 (20.9%) | 2.2 |
 Male | 0/61 (0.00%) | 3/61 (4.9%) | 2/61 (3.3%) | 4/61 (6.6%) | 3/61 (4.9%) | 6/61 (9,8%) | 4/61 (6.6%) | 9/61 (14.8%) | ||
 Female | 2/30 (6.7%) | 4/30 (13.3%) | 3/30 (10.0%) | 7/30 (23.3%) | 4/30 (13.3%) | 8/30 (26.7%) | 6/30 (20.0%) | 10/30 (33.3%) | ||
Caucasian | 9/91 (9.9%) | 18/91 (19.8%) | 14/91 (15.4%) | 24/91 (26.4%) | 18/91 (19.8%) | 31/91 (34.1%) | 21/91 (23.1%) | 39/91 (42.9%) | 1.9 | |
 Male | 4/61 (6.6%) | 9/61 (14.8%) | 6/61 (9.8%) | 12/61 (19.7%) | 9/61 (14.8%) | 13/61 (21.3%) | 12/61 (19.7%) | 18/61 (29.5%) | ||
 Female | 5/30 (16.7%) | 9/30 (30.0%) | 8/30 (26.7%) | 12/30 (40.00%) | 9/30 (30.0%) | 18/30 (60.00%) | 9/30 (30.00%) | 21/30 (70.00%) | ||