Which parameter is used to rebuild the database, 'REPAIR_ALLOW_DATA_LOSS' or REPAIR_REBUILD? If you use REPAIR_ALLOW_DATA_LOSS, then you must backup your database first since this parameter will cause data loss.

If REPAIR_ALLOW_DATA_LOSS still does not work, then you may need to use third-party tools such as DataNumen SQL Recovery, which works well for my cases.