ANATOMICAL HIP REPLACEMENT SURGERY

Once of the Latest Advancement in Hip Replacement with special implants like short stem(C.F.P.) and TOP cup.

Arthritis of hip joint in young patient is a major concern for joint replacement surgeons. In our society mostly young patients in early 20 &30’s are suffering from arthritis due to AVN of hip joint, traumatic arthritis & secondary arthritis due to childhood diseases around hip joint…. Challenges in modern hip replacement surgery are for long lasting results in physiologically young and active patients due to their longer life expectancy. For long lasting  Hip Replacement Surgery (THR ), prosthesis design must be designed on biomechanical load and anchoring principles of natural hip. It must be kept in mind that success of future revision surgery depends on preserved bone stock at time of primary surgery…

The Anatomical Hip Replacement System:

Specifically for young and active patients as it overcomes most the drawback of conventional systems. The two components have been specifically designed

This Cementless Acetabular (T.O.P) Componenet: is designed especially for biologically young and active patients, where with conventional prosthesis young pts. are subjected to increased rate of loosening due to long life expectancy.

Anatomical-Hip-replacement-System

Short stem prosthesis (C.F.P.):  used on femoral side causes minimal bone resection as femoral neck & proximal cancelleous bones are preserved.

resection-of-anatomincal-hip-replacement

ANATOMICAL HIP REPLACEMENT takes into account the biomechanical load and fixation dictated by normal hip anatomy and normal physiological pattern of weight bearing , thereby increases life of surgery

wolfs law
Normal loading pattern of hip joint follows WOLF’S LAW.
Weight loading of anatomical hip replacement
Weight Loading Pattern in AHR is similar to natural weight loading of Hip Joint.
Weight loading of hip joint
Weight loading in Hip Joint

Shape of stem gives maximum prosthesis and bone contact so increases stability of implant.. Parts of circumflex artaries vascular network are preserved therby maintaining natural blood supply of femoral neck even after resection of femoral head.

Shape of the bone stem

Prosthesis stem takes anatomical stem shape and PHYSIOLOGICAL ANTEVERSION, so it increases stability of hip by reducing chances of hip dislocation significantly.

Hip Joint Physiological Anteversion
Hip Joint Physiological Anteversion

Looking at longer picture of ANATOMICAL HIP REPLACEMENT, it gives a good bone stock for future revision surgeries if any required.  With ANATOMICAL HIP REPLACEMENT system we can use Metal on poly(M-P), Ceramic on poly(C-P), or ceramic on ceramic (C-C) articulation/ bearings

x-ray-Hip replacement
X-Ray of Anatomical Hip Replacement

ADVANTAGES OF ANATOMICAL HIP REPLACEMENT SYSTEM ARE:–

  1. Surgery of choice when hip replacement in physiologically young and active pts,
  2. Very much bone conserving, hardly takes out bone from femoral neck and acetabular side,
  3. It mimics natural hip anatomy even after replacement,
  4. Life expectancy of ANATOMICAL HIP REPLACEMENT is more as compared to conventional one,
  5. Future revision surgeries become simpler due to avaibilty of good bone stock,
  6. Pts. feels a natural hip after replacement surgery,
  7. RECOVERY IS VERY FAST DUE TO PRESERVATION OF NORMAL STRUCTURES……
  8. Chances of hip dislocation are negligible……