Knee replacement surgery involves replacing some or all the components of the knee joint with a synthetic implant, to repair the damaged weight-bearing surfaces that are causing pain.
A total knee replacement surgeryreplaces all three compartments of the diseased knee joint.
A partial knee replacement involves an implant in just one or two compartments of the knee, retaining any undamaged parts. While there are non-surgicaland surgical interventions short of knee replacement which will often provide temporary relief, the long-term resolution to most knee degeneration will be joint replacement. There are several different implant designs ( total implants- partial implants) but each will offer renewed stability and movement. there are two main benefits to be gained from knee replacement surgery:
(1) elimination of pain and
(2) improved range of motion.
Of all possible surgical interventions, total knee replacement offers the greatest quality of life improvement. The procedure has a high rate of success.
● most commonly performed in people with advanced osteoarthritis. It should be considered when conservative treatments have been exhausted. espetially in patients over 65 years .
● Total knee replacement is also an option to
correct significant knee joint or bone trauma.
● Similarly, total knee replacement can be performed to correct mild valgus or varus deformity. Serious valgus or varus deformity should be corrected
by osteotomy. Physical therapy has been shown to improve function and may delay or prevent the need for knee replacement
● extreme pain when performing physical activities requiring a wide range of motion in the knee joint.
● Rheumatoid arthritis causing severe destruction.
➢ Absolute contraindications
• knee sepsis including previous osteomyelitis .
• a remote source of ongoing infection .
• extensor mechanism dysfunction .
• severe vascular disease .
• recurvatum deformity secondary to muscular weakness, and the presence of a well functioning knee arthrodesis.
➢ Relative contraindications include
• medical conditions that preclude safe anesthesia,the demands of surgery and rehabilitation.
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• skin conditions within the field of surgery e.g psoriasis, a neuropathic joint and obesity.
Surgical approach
• anterior longitudinal incision allows full exposure of the proximal tibia;
• this incision allows exposure of both medial & lateral aspects of joint w/o the necessity for large skin flaps
• this incsion has advantage that it leaves strong cuff of fibrous tissue attached to vastus medialis obliquus muscle
• this strong cuff facilitates suture placement and secure closure at the end of the case
• - straight incisions are less disruptive to the blood supply to knee than curved incisions;
- a gentle medially curved incision is an alternative which may
I think total knee replacement surgery is easy than partial knee surgery because in total knee surgery complete knee is replaced but in partial only a join is replaced.
ردحذفKnee Replacement Surgery
yeas you are right
ردحذفPartial knee replacement surgery is more difficult and painful than total knee replacement surgery because in TKR whole joint is replaced but in PKR only a part of joint is replaced.
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