The 18-year-old is yet to make an appearance for the Ashton Gate club since signing from Portsmouth last month.
Robins' assistant manager Keith Millen told thisisbristol.co.uk: "Andre is coming along nicely and we're hoping to be told he has been given the all-clear.
"His recovery from the operation has gone as planned and he's been able to do some running and non-contact football training."
Source: Team_Talk