I'm not a doctor, but I once went to one.
Here's a paper from the NIH about Hip Athrosis in Young Adults
Hip degeneration is uncommon in younger patients in the absence of prior trauma or systemic illness.Common clinical findings include limitation into hip internal rotation and flexion range of motion (ROM), pain and/or crepitus [popping noises] with hip ROM testing, and weakness of periarticular hip musculature.
The patient was a 28 year-old female (height, 167.6 cm; mass, 77 kg) that worked as a part-time aerobics instructor while completing her graduate studies. She reported a 4-month history of pain in her left buttock, groin, and distal quadriceps. She attributed her buttock pain to a recent “deep hip stretching” routine that she self-initiated and described it as burning or tightness that worsened while performing aerobics, lunges, or squats and can reach 4/10 (0, no pain; 10, worse pain imaginable) in intensity on a numeric pain rating (NPR) scale. The patient believed that the pain in her left groin and distal quadriceps resulted from altered mechanics following a severe ankle sprain that occurred 4 years ago. This pain would reach 9/10 in intensity on a NPR scale, was described as a deep ache, and was aggravated with prolonged weight bearing, particularly on consecutive days. Rest and use of naproxen decreased her pain in each location. At the time of the evaluation, she had discontinued her work as an aerobics instructor secondary to her pain.
Further, while the benefit of physical therapy has been demonstrated in those over 50 years old, evidence supporting the use of this approach in young adults is limited. While similar benefits may be expected, it is uncertain as to whether young adults would achieve sufficient gains to return to the high level of activity common to their age group. However, given the limited surgical options available for this younger population, physical therapy management may play a more critical role...
The patient was initially referred to a different physical therapist by her primary care physician and underwent treatment for the diagnoses of iliotibial band syndrome, hip pain, and subluxing patella. Treatment consisted of activity modification, soft tissue massage using a foam roller, and passive stretching into hip internal and external rotation, resulting in minimal improvement.
The patient sought further evaluation by an orthopedic surgeon who ordered a thorough diagnostic imaging work up for her left hip. Radiographs and contrast magnetic resonance imaging (MRI) indicated the presence of cam type lesion on the femoral head-neck junction, severe chondrosis [cartilage formation] with areas of full thickness cartilage loss, and an osteochondral loose body. The surgeon believed that she would not benefit from an arthroscopic osteotomy [cutting the bone] to address the cam lesion because the chondrosis was the likely pain generator.
Once the original physical therapist was made aware of the imaging findings, treatment was discontinued as he believed he had little more to offer. The patient was then seen by 2 additional orthopedic surgeons specializing in joint replacements, as well as a rheumatologist with recommendations to reduce activity and to contact their office when she was ready for a total hip arthroplasty (THA) [hip replacement]. She requested further physical therapy consultation to be instructed on strategies to slow the degenerative process in hopes of prolonging the time before a possible eventual THA.
Now of course we have no idea what Napoli's condition is. This particular study indicated that physical therapy would probably delay the need for a Total Hip Replacement (the patient was an aerobics instructor, in otherwise good condition). Of note is the fact that she could resume all exercises except for impact exercises like running. She had what was called "cam impingement" which seems to result from a mis-shapen femural head. The article mentions labrum tears as well.
This is being cited here because degenerative hip disease seems to be rare in young adults. It looks like the causes can range from injury, to mis-shapen joints, to cartilage build-up, etc. and that PT helps, but is not a "cure". It also seems to be a pain issue and doctors don't like to put someone on Naproxen for a long period of time (I think).
Is there a real doctor in the house?