Final answer:
Physical exam findings in Osgood-Schlatter syndrome include tender and swollen tibial tubercles, limited range of motion or pain with knee flexion and extension, and tightness or weakness in the quadriceps muscles.
Step-by-step explanation:
In Osgood-Schlatter syndrome, the physical exam may find several key findings. One common finding is a tender and swollen bump just below the knee, known as a tibial tubercle. This bump develops due to inflammation and irritation of the patellar tendon where it inserts into the tibial tubercle. Another finding may be limited range of motion or pain with knee flexion and extension, especially during activities that involve running or jumping. Lastly, the physical exam may reveal tightness or weakness in the quadriceps muscles, as these muscles play a role in stabilizing the knee joint.