Perioperative factors associated with increased length of stay after revision of metal-on-metal total hip arthroplasty

Jonathan H Garfinkel; Brian P Gladnick; Cole S Pachter; Niall H Cochrane; David W Romness

doi:10.1016/j.jor.2019.01.003

Perioperative factors associated with increased length of stay after revision of metal-on-metal total hip arthroplasty

J Orthop. 2019 Jan 17;16(2):109-112. doi: 10.1016/j.jor.2019.01.003. eCollection 2019 Mar-Apr.

Authors

Jonathan H Garfinkel¹, Brian P Gladnick², Cole S Pachter³, Niall H Cochrane¹, David W Romness^{1

3}

Affiliations

¹ Georgetown University School of Medicine, 3900 Reservoir Road NW, Washington, DC, 20007, USA.
² W.B. Carrell Memorial Clinic, Adult Hip and Knee Reconstruction, 9301 N. Central Expressway, Suite 500, Dallas, TX, 75231, USA.
³ OrthoVirginia, Adult Hip and Knee Reconstruction, 1635 N. George Mason Drive, Suite 310, Arlington, VA, 22205, USA.

Abstract

Objective: To investigate patient factors influencing length-of-stay (LOS) after revision metal-on-metal (MoM) total hip arthroplasty (THA).

Methods: We reviewed 23 hips undergoing revision of a MoM THA with minimum 2-year follow-up. A multiple linear regression was calculated to predict LOS using multiple variables.

Results: Average length of stay (LOS) was 2.1 days. Multiple linear regression analysis identified a significant correlation between presence of an abductor injury (beta = 0.8886; p < 0.0001), patient age (beta = -0.4452, p = 0.0083), and pre-revision head size (beta = 0.4082; p = 0.0172) with LOS (R² = 0.6351, p = 0.0002).

Conclusion: Patients with abductor injury, larger femoral heads, and younger age are at risk for longer LOS.

Keywords: Arthroplasty; Hip; Length of stay; Metal-on-metal; Revision.