Risk factors for acute nerve injury after total knee arthroplasty

Teena Shetty, Joseph T. Nguyen, Mayu Sasaki, Anita Wu, Eric Bogner, Alissa Burge, Taylor Cogsil, Aashka Dalal, Kristin Halvorsen, Kelianne Cummings, Edwin P. Su, Stephen Lyman

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Introduction: In this we study identified potential risk factors for post−total knee arthroplasty (TKA) nerve injury, a catastrophic complication with a reported incidence of 0.3%−1.3%. Methods: Patients who developed post-TKA nerve injury from 1998 to 2013 were identified, and each was matched with 2 controls. A multivariable logistic regression model was built to calculate odds ratios (ORs). Results: Sixty-five nerve injury cases were identified in 39,990 TKAs (0.16%). Females (OR 3.28, P = 0.003) and patients with history of lumbar pathology (OR 6.12, P = 0.026) were associated with increased risk of nerve injury. Tourniquet pressure < 300 mm Hg and longer duration of anesthesia may also be risk factors. Discussion: Surgical planning for females and patients with lumbar pathology should be modified to mitigate their higher risk of neurologic complications after TKA. Our finding that lower tourniquet pressure was associated with higher risk of nerve injury was unexpected and requires further investigation. Muscle Nerve 57: 946–950, 2018.

ジャーナルMuscle and Nerve
出版物ステータス出版済み - 6 2018

All Science Journal Classification (ASJC) codes

  • Physiology
  • Clinical Neurology
  • Cellular and Molecular Neuroscience
  • Physiology (medical)

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    Shetty, T., Nguyen, J. T., Sasaki, M., Wu, A., Bogner, E., Burge, A., Cogsil, T., Dalal, A., Halvorsen, K., Cummings, K., Su, E. P., & Lyman, S. (2018). Risk factors for acute nerve injury after total knee arthroplasty. Muscle and Nerve, 57(6), 946-950. https://doi.org/10.1002/mus.26045