Broken Kneecap (Patella Fracture): Can You Walk? No.

You cannot stand or walk with a fractured patella. The kneecap is essential for knee extension mechanism—it transmits quadriceps force to the tibia via the patellar tendon.

Why It's Impossible

• Extensor mechanism disrupted: quadriceps pull cannot straighten the knee.
• Severe pain, swelling, hemarthrosis (blood in joint).
• Instability: knee buckles under weight.

Treatment

• Non-displaced, intact extensor mechanism: Cylinder cast/brace, NWB 4–6 weeks.
• Displaced/comminuted: ORIF (screws, wires, tension band) → rehab 3–6 months.

Seek immediate orthopedic evaluation. Do not attempt weight-bearing.