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. 2020 Mar 12;5(1):e0056. doi: 10.2106/JBJS.OA.19.00056

TABLE II.

Analysis of Variability of Measurements

Measurement Range Mean 95% CI
(1) Width of the medial epicondylar area (cm) 1.7-2.7 2.19 2.03-2.33
(2) Distance from the most distal border of the medial epicondyle to the proximal border of the coronoid fossa (cm) 2.9-3.7 3.36 3.23-3.50
 a. No. of screws that could be inserted in this area 3-4 3.60 3.27-3.87
 b. No. of screws inserted in this area when the fixation area was extended 2 cm proximally 5-5 5 5.00-5.00
(3) Distance from the muscular incision to the median nerve and neurovascular structures (cm) 1.9-2.7 2.34 2.18-2.50
(4) Distance between the apex of the medial epicondyle and the median nerve (cm) 2.9-3.7 3.34 3.18-3.50
(5) Distance between the apex of the medial epicondyle and the point where the plate tunnel crosses below the median nerve (cm) 6.4-7.4 6.93 6.74-7.12
(6) Flexion/extension limitation NA* NA* NA*
(7) Distance from the tip of the distal screws to the ulnar nerve (mm)
 a. Most distal screw 0-5 2.50 1.60-3.40
 b. Second most distal screw 3-11 7.14 5.61-8.68
 c. Third most distal screw 10-19 14.50 13.13-15.87
 d. Fourth most distal screw 18-23 20.93 19.93-21.93
*

NA = not applicable; no loss of elbow mobility in extension or flexion was found.