If it was exactly this surgery the usual recovery time is between 4 to 6 weeks to start the support, of course due to your age this can last a little longer because the bone quality is not the same as a young adult. It almost always deserves a therapy with supervision and gradual support of the extremities. There should not be any problem when starting to walk from 6 weeks with a walker, of course if there was never damage to the circulation of the head should not evolve into a necrosis of the femoral head. Any doubt you can contact me through my instagram and whatsapp friend. Thank you for your comment and greetings Hive account@marymg2014