Fig. 1.

Chart shows the keyword search performed to identify patients with quadriceps tendon rupture or tear who underwent knee MRI. Blue color denotes patients with the term “quadriceps tendon rupture” or “quadriceps tendon tear” in their medical record, yellow color denotes patients who underwent knee MRI, and green color are the net patients (n = 166) who underwent knee MRI with the above-mentioned quadriceps tendon terms in their MRI report. Patients with denial of these terms (e.g., “no quadriceps tendon rupture”), and additional listed criteria were excluded. Thus, 52 patients with 53 quadriceps tendon ruptures remained for evaluation