The injury must have been severe from what I see on the xray of the leg. It's too early to say anything now.
Next Steps
I believe your husband Wil require further surgery like bone transport using Ilizarov foxatir however one will have to wait and consider all the current circumstances and the present condition of the leg.
Health Tips
I would strongly suggest good physio therapy to keep the knee and ankle functioning and to prevent loss of muscle power due to disuse.