Without the knowledge of the surgery performed it would not be advisable to seek direct advice from any forum. This would be better discussed first with your physiotherapist. Do remember to take along all surgery notes, x-rays and scans that you have. The physio would be best qualified to advise the type of exercises for your condition. Once you have that type of information, then view the stretching exercises here at Grokker to see which ones align with the advice provided by your physio.
All the best.

Any tips on adjustments for 50 year old hips that have had surgery---relieve the tightness