70° arthroscope view from anterolateral portal (Group 1) | 30° arthroscope view from anteromedial portal (Group 2) | P value | |
---|---|---|---|
Position | |||
Depth (mean % DS ± SD) | 33.3 ± 6.0 | 31.7 ± 6.9 | n.s. |
Height (mean % HL ± SD) | 27.2 ± 5.2 | 29.0 ± 6.2 | n.s. |
Accuracy (% distance from TC to AC) | 7.0 | 9.0 | n.s. |
Number (%) within 5% | 10 (33%) | 3 (18%) | n.s |
Number (%) within 10% | 23 (77%) | 9 (53%) | n.s. |
Number (%) within 15% | 29 (97%) | 16 (94%) | n.s. |
Precision (SD of % absolute differences) | 3.7 | 3.8 | n.s. |