TY - JOUR PY - 2018// TI - Risk factors for acute nerve injury after total knee arthroplasty JO - Muscle and nerve A1 - Shetty, Teena A1 - Nguyen, Joseph T. A1 - Sasaki, Mayu A1 - Wu, Anita A1 - Bogner, Eric A1 - Burge, Alissa A1 - Cogsil, Taylor A1 - Dalal, Aashka A1 - Halvorsen, Kristin A1 - Cummings, Kelianne A1 - Su, Edwin P. A1 - Lyman, Stephen SP - 946 EP - 950 VL - 57 IS - 6 N2 - INTRODUCTION: This study identifies potential risk factors for post-total knee arthroplasty (TKA) nerve injury, a catastrophic complication with a reported incidence of 0.3% to 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 (OR).

RESULTS: 65 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 mmHg 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. This article is protected by copyright. All rights reserved.

© 2017 Wiley Periodicals, Inc.

Language: en

LA - en SN - 0148-639X UR - http://dx.doi.org/10.1002/mus.26045 ID - ref1 ER -