Tarsal Navicular

- See:
      - Accessory Navicular
      - Kohler's Disease I

- Anatomy:
    - navicular joins in front w/ medial, intermediate, & lateral cuneiform bones, which articulate anteriorly w/ first, second, and third metatarsals;
    - navicular provides insertion for tibialis posterior;
    - blood supply to the navicular bone is radial and extraarticular & is subject to loss both at time of injury & at time of surgical rx;

- Fracture:
    - navicular stress frx
    - cortical avusion fractures
    - body fractures
    - longitudinal stress injuries of midtarsal joint
    - dorsal lip frx:
         - look for assoc ankle sprain;
         - w/ large lip frx or mid tarsal joint injury, then consider SLC;
    - fracture dislocation


- Assoc Injuries:
    - Midfoot/Forefoot Fractures
    - Midtarsal Injuries

Displaced intra-articular fractures of the tarsal navicular.

Surgical reconstruction for calcaneonavicular coalition. Evaluation of function and gait.

Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Wednesday, September 5, 2012 3:41 pm