Question 1

What is the financial implication of hip replacement surgery for patients from African countries, many of whom don't have insurance?

Dr. Rakesh Mahajan · Accepted Answer

International implant companies have withdrawn much of their complex hip replacement hardware because of government duties and policy changes, but two or three Indian companies have stepped in with cost-effective options. A hip replacement that used to cost $10,000 to $12,000 now costs between $7,000 and $8,000, and in cases of genuine financial difficulty, surgical fees can also be reduced to help the patient.

Question 2

What is the success rate for athletes returning to their profession after hip replacement, and how early can they resume training and sport?

Dr. Rakesh Mahajan · Accepted Answer

It depends on the pathology and the type of activity. A well-selected hip replacement lets most patients resume daily activities and many general activities, but for physically demanding sports like football or basketball a total hip replacement is not really compatible with returning to the same sport, and changing to a less demanding sport is usually the better path. Where the underlying problem is femoroacetabular impingement rather than true arthritis, hip arthroscopy to clean up the impingement and cartilage, combined with stem cell therapy, allows the hip to regenerate over about six months with good results on repeat MRI.

Question 3

In patients with advanced hip osteoarthritis who have pain but still have sufficient mobility, is there a place for conservative management, and when should surgery be recommended?

Dr. Rakesh Mahajan · Accepted Answer

The X-ray tells the story: if the joint space and cartilage are still maintained, surgery is not the first answer even if pain has started. Arthroscopic cleanup of osteochondral bone formation or damaged cartilage combined with stem cell therapy is a good option at that stage. Hip replacement is reserved for once the cartilage is completely damaged and there is no blood flow left to the femoral head.

Question 4

Do you have expertise in hip arthroplasty for children with sickle cell disease, and is hip replacement recommended in children generally?

Dr. Rakesh Mahajan · Accepted Answer

Hip arthroplasty is not recommended below 17 to 18 years of age because the skeleton has not matured. For sickle cell disease specifically, bone marrow transplant, ideally done early in childhood, remains the standard curative treatment and gives the best results. In children who do need hip intervention before that age, arthroscopy and osteotomy techniques that reshape the weight-bearing surface of the hip are used instead of replacement, relieving pain while the child grows.

Question 5

How long can patients generally expect their hip implants to last, and what factors influence the longevity of these implants?

Dr. Rakesh Mahajan · Accepted Answer

A well-fitted hip replacement lasts 30 to 35 years, and since most hip replacement candidates are older, most will not need it again in their lifetime. Longevity depends on the patient avoiding certain positions and activities that stress the implant, including sitting cross-legged or squatting on the floor, and avoiding high-energy sport activity.

Question 6

Can you briefly describe how stem cell therapy is used in hip disorders?

Dr. Rakesh Mahajan · Accepted Answer

Stem cells are osteoprogenitor cells capable of turning into bone, cartilage or other tissue types. For damaged islands of hip cartilage, the area is cleaned up arthroscopically and stem cells are injected. On follow-up MRI over about six months, the cartilage visibly starts regrowing, similar to grass regrowing, and the damaged area shrinks along with the patient's symptoms.

Question 7

How are these stem cells harvested, and how long does the harvesting process take?

Dr. Rakesh Mahajan · Accepted Answer

In orthopaedics, stem cells are harvested from the iliac crest using a Jamshidi needle, taking around 120 ml of bone marrow blood from either a posterior or anterior approach to the pelvis. This is then centrifuged for around 45 minutes to an hour to concentrate the stem cells before they are injected.

Question 8

How does doctor-to-doctor collaboration across borders work as a better alternative to purely commercially driven, agent-led medical travel?

Dr. Rakesh Mahajan · Accepted Answer

In one case, a cancer patient under care in India could not stay for months of ongoing treatment, so after a few treatment cycles the protocol was written up and shared with the patient's own doctor at home, who continued the therapy locally with periodic remote review of how the patient was responding. Not every case can be managed this way, since complex surgery still has to be done in India, but for many conditions this kind of doctor-to-doctor guidance lets patients continue much of their care and follow-up in their home country.

Management of Complex Total Hip Arthroplasty

Questions Doctors Asked Dr. Rakesh Mahajan