What is the healing timeframe for articular cartilage healing without surgery?

Prepare for the Tissue Injury, Healing, and Pain Test. Utilize flashcards and multiple-choice questions with hints and explanations. Ensure you're ready for the exam!

Articular cartilage heals slowly without surgery because it lacks direct blood supply, so repair relies on slower processes like diffusion and the recruitment of cells from the subchondral bone or synovium. When a lesion occurs, repair tissue begins to form, but its maturation and remodeling into durable cartilage take many months, often spanning years. Because of this slow, gradual process, the overall healing timeframe without operative intervention is best represented by a broad window that begins within weeks and can extend for years, roughly 8 weeks to 2 years. This captures both the early phases of repair and the long period needed for remodeling and potential functional restoration.

The shorter timeframes (a few weeks) are not realistic for meaningful cartilage repair, given the avascular nature of the tissue. While 6-12 months sits within the general range, it doesn’t reflect the possibility that healing can continue to evolve beyond a year in many cases, nor the earliest onset of repair that can occur by around 8 weeks.