I just had meniscus repair yesterday is it safe to smoke marijuana today? i am a chronic smoker

Charles Darwin: Why are you worried about the safety of smoking marijuna if you are a chronic smoker. Your life will be shortened significantly from the smoking, and your neurocognitive capacities will be diminished, likely via white matter atrophy. Smoking may worsen your recovery by reducing the delivery of oxygenated blood to the knee.

No good recs: As there really isn't any good data in regards to wound healing and smoking marijuana. While smoking tobacco products is clearly associated with poor healing characteristics, this cannot readily be said to be the case with marijuana. Is smoking ideal, probably not. While I'm not an strong advocate, consider vaporizing or ingestion instead to limit the thermal/particulate pulmonary risk.