Isometric Tunnel Placement in Ulnar Collateral Ligament Reconstruction with Single CT Scan

Table 1

Ligament length measurement error of single CT compared to that of the multiple CT method for each subject and position.

Subject	Extension (E) zone (mm)				Moderate (M) zone (mm)				Flexion (F) zone (mm)
	0°	45°	90°	135°	0°	45°	90°	135°	0°	45°	90°	135°
1	0.00	1.48	1.88	1.95	0.00	1.70	2.22	2.30	0.00	0.77	1.58	1.77
2	0.00	0.21	0.36	0.39	0.00	0.15	0.11	0.58	0.00	0.51	0.16	0.58
3	0.00	1.17	1.13	2.64	0.00	1.68	1.99	2.64	0.00	0.05	1.69	2.30
4	0.00	0.36	0.79	1.40	0.00	0.61	0.76	1.20	0.00	0.10	1.04	1.25
5	0.00	1.90	2.23	1.46	0.00	1.37	2.02	1.96	0.00	0.57	0.75	2.62
Mean	0.00	1.02	1.28	1.57	0.00	1.10	1.42	1.74	0.00	0.40	1.04	1.70
SD	0.00	0.72	0.77	0.83	0.00	0.69	0.93	0.84	0.00	0.31	0.63	0.82