The Effect of Social Isolation on 1-Year Outcomes After Surgical Repair of Low-Energy Hip Fracture

Overview

Journal J Orthop Trauma

Specialties Emergency Medicine
Orthopedics

Date 2024 Jan 12

PMID 38212973

Authors

Lisa A Mandl

Mangala Rajan

Robyn A Lipschultz

Serena Lian

Dina Sheira

Marianna B Frey

Yvonne M Shea

Joseph M Lane

Affiliations

Soon will be listed here.

Abstract

Objectives: To evaluate whether social isolation or loneliness is associated with outcomes 1 year after low-energy hip fracture.

Methods:

Design: Prospective inception cohort study.

Setting: Academic level I trauma center.

Patient Selection Criteria: Participants were 65 years or older and enrolled 2-4 days after surgery for a first low-energy hip fracture. Exclusion criteria were bilateral or periprosthetic hip fracture, previous hip fracture, non-English speaking, international address, active cancer, stage 4 cancer in the past 5 years, radiation to the hip region, and cognitive impairment. Participants were followed longitudinally for 1 year.

Outcome Measures And Comparisons: The patient-reported outcomes measurement information system (PROMIS)-29 was elicited 2-4 days postoperatively and 1 year later. Patient-reported risk factors included the Lubben Social Networks Scale and the University of California, Los Angeles Loneliness Scale, which were compared with the lower extremity activity scale and PROMIS-29 domains.

Results: Three hundred and twenty-five patients were enrolled. Participants had a median age of 81.7 years, were 70.9% female, and were 85.9% White. In total, 31.6% of patients were socially isolated at the time of fracture. At 1 year, 222 of the 291 subjects who were confirmed alive at 1 year provided data. Multivariable linear models were performed separately for each outcome, including lower extremity activity scale and PROMIS-29 domains. Controlling for age, sex, education, and body mass index, those who were socially isolated at the time of fracture had worse PROMIS-29 function (β = -3.83; P = 0.02) and ability to participate in social roles (β = -4.17; P = 0.01) at 1 year. Secondary analyses found that prefracture loneliness was associated with clinically meaningfully worse function, anxiety, depression, fatigue, sleep, pain, and ability to participate in social roles at 1 year (all P < 0.01).

Conclusions: Prefracture social isolation was associated with worse outcomes 1 year after surgical repair of low-energy hip fracture. These data suggest loneliness may be more strongly associated with important patient-centric metrics than prefracture social isolation. Given the dearth of modifiable risk factors in this population, future studies are needed to evaluate whether improving social connections could affect outcomes in this rapidly growing demographic.

Level Of Evidence: Prognostic Level I. See Instructions for Authors for a complete description of levels of evidence.

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