I Have Had An Xray And Mri. Results: Non-displaced Fracture

i have had an xray and mri. Results: Non-displaced fracture of fibular head consistent with arcuate ligament avulsion fracture. Complex tear with radial component of posterior horn medial meniscus, Undersurface fraying/tear of anterior horn medial meniscus. Age indeterminate sprain of proximal fibular collateral ligament. Sprain of distal biceps femoris tendon at attachment to fibular head. Chondral abnormalities of lateral and patellofemoral compartments.

I was knocked down by my horse knocking into my left knee. Left knee went out at an angle away from my body. Horse then sat on me, then when he stood up he re-knocked my left knee with his hind leg.

Ortho Dr. Sisto, scheduled me for surgery Feb 7 to remove part of meniscus. Does this sound right? What other questions should I ask him?