Ossification centers of the knee

Ossification
centers of the knee • Tibia - ossification centers (Gray's illustration) - Ganzer Fall bei Radiopaedia
Hacking, C. Tibia - ossification centers (Gray's illustration). Case study, Radiopaedia.org. (accessed on 07 Nov 2022) https://doi.org/10.53347/rID-83335 • CC by-nc-sa 3.0 (modified)
Ossification
centers of the knee • Fibula - ossification centers (Gray's illustration) - Ganzer Fall bei Radiopaedia
Hacking, C. Fibula - ossification centers (Gray's illustration). Case study, Radiopaedia.org. (accessed on 07 Nov 2022) https://doi.org/10.53347/rID-83336 • CC by-nc-sa 3.0 (modified)
Radiopaedia • CC-by-nc-sa 3.0 • de

Ossification centers of the knee vary from reference to reference, but an approximation is listed below.

Distal femur
  • femoral shaft: 8 weeks in utero
  • distal femur: 3-6 months
Patella
  • between 1-3 ossification centers appear at 3-5 years
Proximal tibia
  • tibial shaft: 7 weeks in utero
  • tibial plateau: 9 months in utero (i.e. usually present at birth)
  • tibial tuberosity: 10-12 years
Proximal fibula
  • fibula shaft: 8 weeks in utero
  • fibular head: 2-4 years