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What is new in hip resurfacing?

Birmingham Mid Head Resection prosthesis (BMHR)
By Dr. Vijay C. Bose
Dr Vijay C. Bose - Hip Resurfacing - Orthopedic Surgeon Articular Surface Replacement of the hip joint is being performed for over eight years now in India with very good results in young active patients requiring bone conserving replacement of the hip joint. Resurfacing of the hip joint is only advisable when the shape of femoral head and strength of the bone can support the prosthesis. Healthy active patients in their third or fourth decade who will benefit from a conservative arthroplasty but have poor bone quality in the proximal half of the head of femur are ideally suited for the new prosthesis called Birmingham Mid Head Resection prosthesis (BMHR). With this prosthesis, the fixation of the femoral component depends less on the bone of the femoral head but more on the stem in the healthy part of the head and neck. The femoral medullary cavity is not opened as in the case of modular BHR with a long stem. Hip Resurfacing -  Birmingham Mid Head Resection-BHMR

Prosthesis

The BMHR uses the same socket (hydroxyapatite-coated metal uncemented cup) and bearing(metal on metal) as the BHR. The modular head component fits onto a hydroxyapatite proximal porous coated cobalt chrome stem. It is an uncemented short stemmed prosthesis. It was invented by Prof. Dereck Mc.Minn a year ago and is performed by very few surgeons the world over. In India it is being done only by Dr. Vijay Bose in Chennai, India.

Dynamics

The head of femur is resected just above the head and neck junction. The following dotted line C indicates the level of resection at the head for a Birmingham Mid Head Modular Resection prosthesis. Lines A and B represent the conventional hip resection levels for Total hip replacement and neck sparing total hip replacement, respectively. The resection level for resurfacing is more proximal to line C.

Indications

The specific type of arthroplasty for a given patient depends on the volume of necrotic segment, patient demographics and activity demands.
  • 1. Extensive avascular necrosis of the femoral head.
  • 2. Developmental dysplasia with shortened head-neck segment.
  • 3. Large cysts of the femoral head.
  • 4. Involution of the head of femur due to severe arthritis.

Advantages

The BMHR prosthesis due to metal on metal bearing does not wear easily. Patients who have poor residual viable bone can still have the benefits of a near natural hip by using this prosthesis. The BMHR stem offers the advantage of a more physiological proximal loading than the BHR.

References

  • 1. Avascular Necrosis in the young Patient: A Triology of Arthroplasty Options. By Derek J.W. McMinn, FRCS; Joseph Daniel, FRCS: Chandra Pradhan 2005.
  • 2. Linda Pugilese won the weapons division of Karate National Championship 2007 in U.S.A., one year after both her hips were resurfaced by Dr.Bose in chennai
  • 3. Dr. William Cory Foulk took part in the 2006 Ironman Triathlon world Championship ten months after having a Birmingham hip resurfacing procedure with Dr.Bose
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Healthbase, an award-winning* medical tourism facilitator in USA, is the trusted source for global medical and dental choices, connecting patients to leading healthcare facilities worldwide. We arrange a variety of medical tourism services from basic consultations to full service treatment abroad. We help you to take care of all your medical tourism details from arranging the surgery and financing options to visas, travel, lodging and tourism.

Healthbase caters to the needs of individual consumers, self-funded businesses, insurance carriers, benefit consultants, insurance agents, and third party administrators seeking affordable medical travel and dental travel options. Our state-of-the-art, easy to use, information rich web-based system makes it easy to coordinate international medical care including necessary travel and accommodation for patients and their companions, all at one place.

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We offer over two hundred medical, dental and cosmetic procedures in various categories: Orthopedic procedures such as hip replacement, Birmingham hip resurfacing, artificial knee replacement, rotator cuff repair, knee surgery; Cardiac and Vascular procedures like heart bypass (multiple coronary artery bypass graft or CABG), aortic aneurysm repair, heart valve repair, heat valve replacement, angioplasty, RF Ablation; Spinal procedures such as spine fusion, laminectomy, disc replacement; Weight-loss procedures like gastric bypass, lap band, gastric sleeve; Eye procedures like LASIK; Cosmetic and Plastic surgery procedures such as breast augmentation, face lift, rhinoplasty (nose surgery), liposuction; Dental procedures such as orthognathic surgery, dental bridges, dental implants, dental crowns; dental veneers; and hundreds of other procedures in the departments of Urology, General surgery, Wellness and many more. The savings are up to 80% of typical US hospital prices.

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