What is the ideal weightbearing status after arthrodiastasis?

• A. Full weightbearing
• B. Partial weightbearing
• C. Nonweightbearing
• D. Toe-touch weightbearing

Answer: (A)

Arthrodiastasis uses a distraction frame to open the joint space and reduce compressive stress on the surfaces, while still allowing the joint to function in a protected way. Once the fixation is secure and the soft tissues tolerate it, full weightbearing as tolerated is preferred because loading the joint promotes healing with beneficial mechanical stimulation—improving nourishment of the cartilage through synovial fluid and helping maintain muscle strength and joint motion. Immobilization or very limited loading deprives the joint of this stimulus and can lead to stiffness and slower recovery. Nonweightbearing or toe-touch loading would fail to provide the necessary mechanical benefit, and partial weightbearing would unnecessarily slow rehabilitation while the fixation already preserves the distraction.