Cognitive Function in Patients Undergoing Arthroplasty: The Implications for Informed Consent
2011

Cognitive Function in Patients Undergoing Arthroplasty

Sample size: 59 publication Evidence: moderate

Author Information

Author(s): Demosthenous N., St Mart J. P., Jenkins P., Chappel A., Cheng Kenneth

Primary Institution: Glasgow Royal Infirmary

Hypothesis

How well do patients undergoing arthroplasty remember information about their planned procedure?

Conclusion

Patients recalled a median of three complications out of ten, indicating that memory retention is influenced by age and education level.

Supporting Evidence

  • Patients recalled a median of three complications out of ten.
  • Younger patients performed better on memory tests.
  • Education level correlated with the ability to recall complications.
  • Neuropsychological tests provided objective measures of memory.
  • Patients showed the ability to learn new material.

Takeaway

Older patients and those with less education have a harder time remembering important information about their surgery.

Methodology

Patients underwent neuropsychological tests to assess their ability to learn and recall information about their surgery.

Potential Biases

Patients may have varying levels of understanding based on their individual circumstances, which could bias recall accuracy.

Limitations

The testing environment may not fully replicate a typical clinical setting, and patient fatigue could affect results.

Participant Demographics

Mean age of 68.6 years; 33.9% males and 76.1% females; education levels varied.

Statistical Information

P-Value

0.007

Confidence Interval

95% CI 0.5 to 1.8

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.4061/2011/346161

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