Thumb injury. Or is it a minor fracture?

I twisted my knee and feel on my thumb 3 weeks back while dancing.MRI of the knee showed sprain (sprain pattern with interstitial tear of acl&patella but attachment intact) which is fairly stable now. X-ray on the thumb showed avulsion fracture on the left side of MCP joint.I consulted 2 orthopedists(1 said surgery is required for ucl, other said that stability exists so it'll heal non surgically) .I was able to do flexion extension abduction adduction of the thumb with little pain when the doctor tested my stability(3 weeks back).I was wearing a removable thumb spica strap for 3 weeks. Now the doctor advised me to go for physiotherapy but I still see swelling on MCP and numbness on the tip of thumb. Regarding the avulsion fracture on the left of MCP , do I have a completely displaced fracture or is it a minor fracture??