Total Knee Replacement vs Partial Knee Replacement

What is the difference in bone resection of a PARTIAL KNEE vs TOTAL KNEE?

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What is the difference in XRAY appearance of a TOTAL KNEE vs PARTIAL KNEE?

Total Knee Replacement

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Partial Knee Replacement

Why would you want to perform a PARTIAL KNEE instead of TOTAL KNEE?

  • In the correctly selected patients partial knees have
  • Much quicker recovery than TOTAL KNEE
  • Better patient function
  • Better range of motion
  • Higher patient satisfaction scores
  • Much lower rate of medical complictions than TOTAL KNEE

PARTIAL KNEE and TOTAL KNEE medical postop complications

PARTIAL KNEE

Overall risk of complications 4.3%
Risk of hospital readmission 2.7%
DVT/PE rate is half that of TKA  
Average range of motion is more than 10 digress better  
Rate of blood transfusion 0.2%
TOTAL KNEE

Overall risk of complications 11.3%
Risk of hospital readmission 4.2%
2X DVT rate  
Inferior range of motion  
Transfusion rates 4-46%!!

 

Other benefits of UKA over TKA in appropriate patients

  • Less blood loss, better ROM, kinematics
  • UKA preferred over TKA by patients
  • Significantly lower risk of infection and other medical complications
  • Improved function and return to higher level activities with UKA vs TKA
  • UKA is currently underused procedure worldwide (could be as high as 20-50%!!!)

Partial knee vs total knee and high level sports

  • Partial knee patients return to higher level activities with more frequency than total knee patients

Why does this patient need a TOTAL KNEE REPLACEMENT?

As you can see this patient has arthritis only on the “inside” part of the knee (also known as the medial

compartment)

Partial Knee Replacement

 

Why would you want to perform a PARTIAL KNEE instead of TOTAL KNEE?

  • In the correctly selected patients partial knees have
  • Much quicker recovery than TOTAL KNEE
  • Better patient function
  • Better range of motion
  • Higher patient satisfaction scores
  • Much lower rate of medical complictions than total knee

In patients with one of each

  • Partial knee side is consistently preferred over the total knee side for motion, function, pain

Partial Knee Replacement