PMC10229899_01
AP and LAT radiographs of bilateral anterior congenital radial head dislocation in a 21-year-old male. (A, B) AP and LAT of the left elbow. (C, D) AP and LAT of the right elbow. (E, F) AP and LAT showing the measurement of LRU of the left elbow; the RLRU are 0.9100 AP and 0.9984 LAT. (G, H) AP and LAT showing the measurement of LRU of the right elbow; the RLRU are 0.9144 AP and 1.0105 LAT. AP, anterior -posterior; LAT, lateral; LRU,the length of the radius and ulna; RLRU,the ratio of the length of radius to ulna.
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F1
In addition, the length of the radius and ulna (LRU) was measured for both sides, as well as the ratio of the length of radius to ulna (RLRU) (Figure 1).
(A) Timeline of duration of each treatment. (B) (a) Preoperative CT scan and reconstruction of the left elbow revealed the dislocated radial head. (b) AP of intraoperative plain radiograph: the capitulum and radial head were secured by inserting a 2.5-mm K-wire while the elbow was flexed at a 90 ; (c) Eight-month postoperative plain radiograph demonstrated callus formation at the proximal ulna, and the radial head was in its anatomic location; (d) After the surgery, the left elbow's ROM was assessed 1 year later. AP, anterior-posterior; ROM, range of motion; K-wire, Kirschner wire.
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F2
The entire treatment process was organized into a timeline, with corresponding photographs added at each stage of the process (Figure 2).