Bone Spurs on the Knee, Anterior View

Description

Anterior knee anatomy is presented with the distal femur seated superiorly on the proximal tibia, the patella positioned anterior to the femoral trochlea, and the tibial plateaus forming the inferior articular surface of the tibiofemoral joint. Marginal osteophytes (bone spurs) rim the medial and lateral femoral condyles and may extend toward the margins of the tibial plateau, where they encroach on the joint line. Between femur and tibia, the medial and lateral menisci occupy the interposed space, and the articular cartilage is rendered with focal wear and reactive discoloration consistent with degenerative change. Patellofemoral congruence is readable in this projection, with the patella centered over the trochlear groove. Osteophyte formation along the condylar margins is a hallmark of osteoarthritis and often correlates with pain at terminal extension, mechanical catching, and progressive loss of joint space on weight-bearing radiographs. This frontal orientation mirrors the clinical viewpoint for interpreting anteroposterior knee imaging, where marginal osteophytes, subchondral change, and compartmental asymmetry help grade disease (for example, Kellgren and Lawrence) and guide decisions between conservative management, unicompartmental arthroplasty, or total knee arthroplasty. A practical teaching point: anterior osteophytes can contribute to reduced extension and increased patellofemoral contact pressures, complicating anterior knee pain. Orthopedic and rheumatology educators can place this figure into modules on degenerative joint disease, correlating gross morphology with radiographic signs and symptom patterns. It also reads well for patient-facing materials that explain why a knee can feel stiff or lock despite “just arthritis,” and for surgical textbooks discussing osteophyte resection during arthroscopy or arthroplasty exposure. Anatomical accuracy verified by SciePro's Medical Advisory Board.