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AVASCULAR NECROSIS OF HIP (AVN HIP)

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This is a short presentation on avascular necrosis of femoral head. This presentation gives brief description of causes of AVN, investigations and modes of treatment options available.

AVN TREATMENT IN HYDERABAD
Core decompression for AVN
Stem cell treatment for AVN
Surgery for AVN
Avascular necrosis treatment options
Hip replacement in hyderabad
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Hip surgery in hyderabad
Total hip replacement in hyderabad
cemented hip replacement
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AVASCULAR NECROSIS OF HIP (AVN HIP)

  1. 1. AVASCULAR NECROSIS OF FEMORAL HEAD (AVN)
  2. 2. Dr. A.MOHAN KRISHNA M.S.ORTHO, MCh ORTH(U.K) Consultant Orthopaedic surgeon , Trauma, Arthroscopy, Arthroplasty Surgeon Apollo hospitals, Hyderabad Consultant Orthopaedic Surgeon at www.drmohankrishna.com www.healthyjointclub.com www.bonesandjointsclinic.com
  3. 3. DISCLAIMER This presentation is solely for educational purpose. The material included in the presentation represents educational material for the patients and not intended for any treatment purpose
  4. 4. INTRODUCTION Avascular Necrosis is condition in which there is loss of blood supply to the bone. Bone is living tissue  loss of blood supply  bone death If bone death progresses leads to bone collapse
  5. 5. AVASCULAR NECROSIS OF FEMORAL HEAD Blood supply to femoral Head (ball of hip joint) is interrupted by 1. Traumatic 2. Nontraumatic Femoral head: Death of bone cells and marrow Dead segment of bone Further collapses and loss of sphericity
  6. 6. CAUSES Traumatic Fracture neck of Femur Fracture dislocations of hip Injuries /surgeries around hip Nontrauamtic Steroid use Excess Alcohol intake Sickle cell disease Other blood cell disorders Deep sea divers and miners
  7. 7. TRAUMA
  8. 8. STEROID INDUCED Corticosteroids: Prednislone / Methyprednislone: used in management of Asthma Skin diseases Immunological diseases Renal transplant In the above conditions there is no choice Steroid induced is usually Bilateral
  9. 9. COMPLAINTS Hi, What’s your complaints?
  10. 10. COMPLAINTS Pain:groin,buttocks, Front of thigh Limp Stiffness in hip Night pain
  11. 11. COMPLAINTS Pain:groin,buttocks, Front of thigh Stiffness Limp
  12. 12. INVESTIGATIONS
  13. 13. X-RAYS X-Rays 1.Early stages of AVN : X ray not useful even though there is pain 2.Advanced Stages of AVN : Bone cyst and collapse of dead bone and arthritic changes can be seen AVN femoral head
  14. 14. PROGRESSION OF AVN- X-RAYS
  15. 15. MRI MRI 1. If X ray fails to show AVN. 2.Can detect AVN of HIP within days 3.Can be used for staging the disease 4.MRI takes multiple slices of images of hip and can show even tiny areas of damage.
  16. 16. BONE SCAN Bone scan 1. A very sensitive investigation 2. Scan shows cold spot at places of AVN 3. Replaced now by MRI
  17. 17. TREATMENT Once AVN started : treatment depends on Stage of Disease and symptoms/Age/general health of patient AVN is irreversible: no drugs can restore blood supply to femoral head
  18. 18. MEDICAL MANAGEMENT Keeping weight of affected hip Crutch walking Anti inflammatory medications initially • Simple analgesics for pain Bisphosphnates :Reduces risk of femoral head collapse Blood thinning drugs with a hope of maintaining precarious blood supply
  19. 19. SURGERY AVN femoral head • No Collapse  operations to increase blood supply • Core Decompression with or with out bone graft AVN Femoral Head : Advanced stage • Arthritic Hip • Total Hip Replacement
  20. 20. DECOMPRESSION OF FEMORAL HEAD Drilling one or several holes through the neck of femur into areas of head where there is lack of blood supply Principle: 1. It decreases the pressure inside the femoral head 2. It helps to stimulate budding of new blood vessels in affected areas Reliving pressure helps in reduction of pain. It does not cure the disease but can help to delay the progression of AVN
  21. 21. DECOMPRESSION OF FEMORAL HEAD+ BONE GRAFTING Decompression of femoral head Inserting freeze dried allograft into the decompressed canal Pain relief due to decompression • Graft acts as structural support preventing further collapse.
  22. 22. DECOMPRESSION OF FEMORAL HEAD+ BONE GRAFTING
  23. 23. DECOMPRESSION + STEM CELL TREATMENT Decompression of femoral head Harvesting stem cells from the patient and filling into the decompressed femoral head Pain relief due to decompression • Stem cells helps to form new bone, which in turn can give structural support
  24. 24. DECOMPRESSION OF FEMORAL HEAD + VASCULARISED FIBULAR GRAFT Decompression of femoral head is done by making a hole into femoral head. A fibular graft along with its blood vessels is removed from the leg and inserts into the hole created in femoral neck and head. Surgeon then connects the blood vessels of the fibula to the blood vessels around the hip. It can help to restore the blood supply . Fibular graft act as strut and help in preventing collapse of femoral head
  25. 25. This procedure is complicated. Success rates depend on the patency of newly formed blood vessel connection between the graft and hip blood vessels.
  26. 26. POSTOPERATIVE MANAGEMENT After decompression it weakens the femoral neck & head Protected weight bearing with aid of crutches and walker for 6 weeks Weight bearing after 6 weeks and return to regular activities.
  27. 27. TOTAL HIP REPLACEMENT Advanced Stage of AVN: Femoral head collapse Secondary osteoarthritis of Hip joint Total Hip Replacement
  28. 28. TOTAL HIP REPLACEMENT Different designs & materials in Hip replacement • Consists 2 basic components Ball & Socket components Ball component • Highly polished Metal • Ceramic material Socket component . Plastic (High molecular weight polyethylene) . Ceramic . Metal
  29. 29. CHOICE OF MATERIAL Total hip replacement could be CEMENTED and CEMENTLESS.  Decision is based on number of factors like age, quality & strength of bone and cost factor in some instances. Surgeon can decide and choose that meets patients needs.
  30. 30. CONTACT Dr.A.MOHAN KRISHNA M.S.Ortho., MCh Ortho(U.K)., Consultant Orthopaedic Surgeon, Apollo Hospitals, Hyderabad. Appointments: Secretary : 09441184590 08332936085 www.drmohankrishna.com www.healthyjointclub.com www.bonesandjointsclinic.com Email: healthyjointclub@gmail.com

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