Hi, sorry about your injury,
I just read an article in J Am Acad Orthop Surg, Vol 15, No 6, June 2007, 350-355. If you can get your hands on the article, it gives a great review of all of the pertinent literature about surgical repair of proximal hamstring avulsions (tearing the hamstring tendons off of the sit-bone). Here is the abstract:
Hamstring strain is common in athletes, and both diagnosis and surgical treatment of this injury are becoming more common. Nonsurgical treatment of complete ruptures has resulted in complications such as muscle weakness and sciatic neuralgia. Surgical treatment recently has been advocated to repair the complete rupture of the hamstring tendons from the ischial tuberosity. Surgical repair involves a transverse incision in the gluteal crease, protection of the sciatic nerve, mobilization of the ruptured tendons, and repair to the ischial tuberosity with the use of suture anchors. Reports in the literature of surgical treatment of proximal hamstring rupture are few, and most series have had a relatively small number of patients. Surgical repair results project 58% to 85% rate of return to function and sports activity, near normal strength, and decreased pain.
If you have a complete avulsion(tear) that has retracted 1 to 2 cm, then most of these are going to surgery. If the tear has not retracted more than that, conservative measures tend to be the better way. If I remember correctly, the sooner the tendon is repaired, the better but some of the cases were out months to years and still had good outcomes.
If you want a copy of the article, I could send it to you.
So, basically, it depends on the amount of retraction of the tendons (need to have an MRI to make that measurement.)