Correspondence  |   October 2017
Effect of Peripheral Nerve Block on Length of Stay after Total Knee Arthroplasty
Author Notes
  • Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea (Y.-T.J). ytjeon@snubh.org
  • (Accepted for publication June 7, 2017.)
    (Accepted for publication June 7, 2017.)×
Article Information
Correspondence
Correspondence   |   October 2017
Effect of Peripheral Nerve Block on Length of Stay after Total Knee Arthroplasty
Anesthesiology 10 2017, Vol.127, 718-719. doi:10.1097/ALN.0000000000001785
Anesthesiology 10 2017, Vol.127, 718-719. doi:10.1097/ALN.0000000000001785
We read the article by McIsaac et al.1  with great interest. The authors should be commended for attempting to estimate the effects of peripheral nerve blocks (PNBs) on healthcare resource use. These efforts could decrease the cost of health care without compromising patient health. However, we have a few points that we wish to pose to the authors, which may confound interpretation of the results.
First, PNBs are widely used to reduce pain after total knee arthroplasty (TKA). However, these techniques have shortcomings, such as inadequate pain control due to technical difficulty and inexperience. Multimodal analgesia has been introduced to overcome these shortcomings.2  The pain score is important to determine whether a nerve block is successful, but this retrospective design made it impossible to include pain scores.
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