TABLE II.
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.