Joint Replacement Surgery
Joint replacement surgery in orthopedics is a procedure in which damaged joint surfaces are replaced with artificial components (prostheses). It is most commonly performed on the knee, hip, or shoulder joints, usually due to advanced osteoarthritis, trauma, or rheumatic diseases.
The primary goals of joint replacement surgery are to relieve pain, restore mobility, and improve overall quality of life.
Hip Replacement (Total Hip Arthroplasty)
Indications:
Hip replacement surgery is performed for conditions such as:
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Hip osteoarthritis
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Hip fractures
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Avascular necrosis of the femoral head
Types of Hip Replacement:
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Total hip arthroplasty: Both the femoral head and the acetabulum are replaced.
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Hip resurfacing: The joint surfaces are preserved and capped with prosthetic components.
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Hemiarthroplasty: Only the femoral head is replaced, most commonly performed in elderly patients.
Knee Replacement (Total Knee Arthroplasty)
Indications:
Knee replacement surgery is primarily performed for advanced osteoarthritis of the knee.
Types of Knee Replacement:
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Total knee arthroplasty: The entire knee joint is replaced.
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Partial (unicompartmental) knee arthroplasty: Only a single compartment of the knee—medial, lateral, or patellofemoral region—is replaced.
Shoulder Replacement
Indications:
Shoulder replacement surgery is performed for conditions such as:
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Shoulder osteoarthritis
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Shoulder fractures
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Post-traumatic joint deterioration following rotator cuff tears
Types of Shoulder Replacement:
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Anatomic shoulder arthroplasty: Mimics the natural anatomy of the shoulder joint.
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Reverse shoulder arthroplasty: Typically indicated when there are rotator cuff tears, allowing the deltoid muscle to compensate for cuff deficiency.
Elbow Replacement
Indications:
Elbow replacement surgery is less common than hip or knee replacement but is particularly effective in cases of:
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Rheumatoid arthritis
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Severe fractures
It is especially beneficial for restoring function and relieving pain in patients with significant joint damage due to rheumatic diseases.
Wrist Replacement
Indications:
Wrist replacement surgery is performed in cases of:
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Advanced wrist osteoarthritis
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Rheumatic diseases affecting the wrist
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Post-traumatic loss of motion and pain
Prosthetic procedures for the smaller hand joints are less common and are generally reserved for selected cases.