MBBS Bachelor of Medicine and Bachelor of Surgery, MS - Orthopaedics, Fellowship In Joint Replacement, Fellowship In Minimal Invasive Subvastus Knee Replacement
Orthopedic Doctor, Navi Mumbai
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16 years experience
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Prosthetics used to replace joints are cemented into place.
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Joint replacement is a procedure where a damaged or degenerated joint is replaced with metal, plastic, or ceramic prosthetics which mimic the joint movement. The prosthetics are fixed at the articulating ends of the bones involved in the joint with biological cement. The prosthetics may also be attached to the bone using a network of fine holes on the surface of the implant through which the bone grows when healing, fixing the prosthetic in place.
Complete bed rest is advised after joint replacement surgery.
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Joint replacement surgery involves replacement of damaged joint with artificial implants called prosthetics. It is necessary to restore and maintain joint mobility and muscular strength as soon after surgery as possible to prevent tissue degradation and prosthesis failure. Physiotherapy is thus started immediately after surgery with simple and mild exercises which increase in intensity and duration till joint mobility and muscle strength is fully restored.
Which of the following joints are eligible for joint replacement surgery?
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Joint replacement surgery is performed to replace joints damaged or degenerated due to trauma or diseases. All the major joints are eligible for replacement by prosthetics depending on the type of joint. Hip joints are ball and socket joints which are replaced by a metal ball head on the femur fitting into a metal, plastic, or ceramic socket in the pelvic bone. The knee joint and finger joints are hinge joints moving in a single direction, and are replaced by prosthetic parts mimicking this motion.
Which of the following joints cannot be replaced?
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Joint replacement therapy is performed to replace movable joints with artificial prosthetics that mimic the motion of these joints to restore mobility. However, skull joints are immovable joints that form the protective cranium for the brain. Hence these joints cannot be and need not be replaced.
All the bones involved in a joint are completely replaced with metal bones in a joint replacement surgery.
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Surgical replacement of a joint involves replacement of just the joint with prosthetics that mimic the joint movement. The bones are not replaced, just the ends that connect in a joint.
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