Superior Patellar Dislocation Misdiagnosed as Patellar Tendon Rupture: The Value of Ultrasonography

Figure 2

Pre- and postreduction lateral radiographs show superior dislocation of the patella. (a) showed high-riding patella with inferior patellar osteophyte locked to osteophyte at the superior aspect of femoral condyle. (b) showed normal position of patella.

(a)

(b)