LARAI portal provides a safe method for lateral meniscus repair: three-dimensional computed tomography and cadaveric assessment

Journal of Orthopaedics and Traumatology

Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 2 Distances between the PA and the simulated trajectory needles

Distance of simulated trajectory to PCL	0 mm lateral to PT	5 mm lateral to PT	10 mm lateral to PT	15 mm lateral to PT	20 mm lateral to PT
0 mm
Mean ± SD	12.14 ± 4.51	13.90 ± 4.32	15.53 ± 4.15	17.14 ± 4.22	18.67 ± 3.80
Range	4.32–22.97	5.86–25.09	7.64–25.11	9.23–28.18	10.49–26.94
Mean −3SD −2	−3.39	−1.09	1.08	2.48	5.27
Safe	No	No	Yes	Yes	Yes
3 mm
Mean ± SD	8.13 ± 4.38	10.07 ± 4.44	11.68 ± 4.15	13.43 ± 4.03	15.05 ± 3.88
Range	0.98–18.59	2.06–19.50	3.25–23.10	5.95–25.00	7.83–25.55
Mean −3SD −2	− 7.01	− 5.25	− 2.77	− 0.66	1.41
Safe	No	No	No	No	Yes
6 mm
Mean ± SD	4.33 ± 4.16	6.26 ± 4.48	7.86 ± 3.93	9.37 ± 3.73	11.47 ± 3.78
Range	−3.03 to 13.86	−2.15 to 16.46	0.9–16.89	2.59–18.19	4.32–19.52
Mean −3SD −2	−10.15	−9.18	−5.93	−3.82	−1.87
Safe	No	No	No	No	No
9 mm
Mean ± SD	0.39 ± 4.28	2.20 ± 4.38	3.84 ± 4.29	5.81 ± 3.94	7.62 ± 4.01
Range	−6.44 to 11.54	−5.42 to 12.48	−3.99 to 15.13	−0.54 to 16.74	−0.82 to 16.39
Mean −3SD −2	−14.45	−12.94	−11.03	−8.01	−6.41
Safe	No	No	No	No	No
12 mm
Mean ± SD	−3.60 ± 4.78	−1.55 ± 4.01	−0.02 ± 4.04	1.73 ± 4.08	3.39 ± 3.79
Range	−14.06 to 8.43	−8.85 to 9.55	−8.98 to 10.41	−5.19 to 11.12	−4.21 to 11.67
Mean −3SD −2	−19.94	−15.58	−14.14	−12.51	−9.98
Safe	No	No	No	No	No

All measurements are in millimeters. If the value of Mean −3SD −2 was more than zero, the simulated trajectory was considered “safe”
PA popliteal artery, PCL posterior cruciate ligament, PT patellar tendon, SD standard deviation