Right Knee Atlas

Inner-upper pressure view. Start on the MCL origin, then try Valgus stress versus Twist.

Educational only

Live reading

Medial collateral ligament — superficial

FMA44600

The stout inner ligament of the knee. It originates on the medial femoral epicondyle — the upper inner bump — and inserts on the tibia several centimetres below the joint. It is the primary restraint to valgus (the knee caving inward). A pressure or twang right there is the classic MCL address. Right now the knee is at 22° flexion, rotation neutral. It is not at a peak valgus stretch. Open the Valgus stress preset to load the inner-upper origin.

Why the inner pressure

Inner upper. Inner-upper origin is not at a classic valgus stretch. Open Valgus stress to load it.

Joint line. Joint-line meniscus is quieter. Twist while flexed to load it.

Load these poses

Educational anatomy only — not a diagnosis, not medical advice. Inner-knee pressure has several neighbours (MCL origin, MPFL, meniscus, pes). Bones are BodyParts3D 4.0 adult-male right lower limb (CC BY 4.0, Database Center for Life Science). Ligaments, tendons and cartilage are kinematic overlays registered to those meshes.

Flexion / extension22° flexion

ExtensionFlexion

Tibial rotation0° neutral

InternalExternal

Valgus / varus0°

VarusValgus

Drag to orbit · scroll to zoom · two-finger drag to pan. Valgus (knee caving in) loads the inner MCL origin — the upper bump you can feel on the inside.