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Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
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Risk Factors for Nerve Injury After Total Hip Arthroplasty: A Case-Control Study.

Teena Shetty1, Joseph T Nguyen2, Anita Wu1

  • 1Department of Neurology, Hospital for Special Surgery, New York, NY.

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Summary
This summary is machine-generated.

Nerve injury after total hip arthroplasty (THA) is rare, occurring in 0.21% of cases. Younger age, smoking, spinal disease, and longer surgery increase risk, while morning scheduling may decrease it.

Keywords:
agenerve injuryrisk factorsspine diseasetobaccototal hip arthroplasty

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Area of Science:

  • Orthopedic Surgery
  • Neurosurgery
  • Medical Complications

Background:

  • Postsurgical acute nerve injury is a rare but serious complication following total hip arthroplasty (THA).
  • Previous literature reports a wide incidence range (0.1%–7.6%), with confirmed risk factors remaining unclear.

Purpose of the Study:

  • To systematically identify nerve injuries following THA.
  • To determine confirmed risk factors associated with nerve injury after THA.

Main Methods:

  • A retrospective review of THA patients from January 1, 1998, to December 31, 2013, was conducted.
  • Patients who developed nerve injury were matched with two control subjects.
  • Conditional logistic regression was used to identify risk factors and calculate odds ratios (OR).

Main Results:

  • The incidence of nerve injury was 0.21% (93 of 43,761 THAs).
  • Increased risk was associated with younger age (<45 years; OR, 7.17), tobacco use (OR, 1.90), spinal disease/surgery (OR, 10.06), and longer surgical time (OR, 1.48 per 30 minutes).
  • Assignment as the first operative case of the morning was associated with decreased risk (OR, 0.37).

Conclusions:

  • Nerve injury is a rare complication of THA.
  • Identified risk factors include younger age, tobacco use, spinal disease, and surgical duration.
  • Potentially modifiable factors like smoking, spinal disease, and surgical scheduling warrant further investigation.