After kneecap dislocation prev lateral release have meniscus extruded medial and partial tear. large effusion sl pain wt bearing . surgery? edema both reticulum

Likely: The tear and in particular extruded portion of the meniscus associated with a large effusion do suggest that this meniscal injury will likely require surgical intervention. A short course of conservative treatment with aspiration of the knee effusion, short course of non-steroidal anti-inflammatory, activity modification, brace, and physical therapy is reasonable. If does not respond then surgery.