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Arthroplasty Versus Internal Fixation for the Treatment of Undisplaced Femoral Neck Fractures: A Retrospective Cohort Study.

Abstract：

OBJECTIVE:To compare the 24-month risk of mortality between arthroplasty and internal fixation for undisplaced femoral neck fractures (FNFs). DESIGN:Retrospective cohort study. SETTING:Secondary data analysis of 2 multinational randomized controlled trials. PARTICIPANTS:Patients aged 50 years or older with a FNF. INTERVENTION:Arthroplasty (n = 1441), including total hip arthroplasty and hemiarthroplasty, performed for a displaced FNF versus internal fixation (n = 734), including sliding hip screw or multiple cancellous screws, performed for an undisplaced FNF. MAIN OUTCOME MEASUREMENT:The primary outcome was mortality within 24 months of injury. Secondary outcomes included reoperation and health-related quality of life. RESULTS:The 24-month mortality rate was 15.0% (n = 327). Arthroplasty was associated with a significant reduction in the odds of mortality [adjusted odds ratio (aOR): 0.56, 95% confidence interval (CI): 0.44-0.72, P < 0.01] compared with treatment with internal fixation. 11.4% (n = 248) of the study patients required reoperation within 24 months of injury. The odds of reoperation were 59% lower with arthroplasty treatment than with internal fixation (aOR: 0.41, 95% CI: 0.32-0.55, P < 0.01). The 24-month SF-12 physical component scores were 2.7 points higher in arthroplasty patients compared with internal fixation patients (95% CI: 1.6-3.8, P < 0.01). CONCLUSIONS:Our findings suggest arthroplasty for a FNF may reduce the risk of mortality and reoperation compared with internal fixation of undisplaced fractures. This finding is counter to many current surgical practices but consistent with a mounting body of evidence. Before widespread adoption of arthroplasty for undisplaced fractures, these results should be confirmed in a definitive comparative trial. LEVEL OF EVIDENCE:Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

journal_name

J Orthop Trauma

journal_title

Journal of orthopaedic trauma

authors

Afaq S,OʼHara NN,Schemitsch EH,Bzovsky S,Sprague S,Poolman RW,Frihagen F,Heels-Ansdell D,Bhandari M,Swiontkowski M,Slobogean GP,FAITH Investigators.,HEALTH Investigators.

doi

10.1097/BOT.0000000000001940

subject

Has Abstract

pub_date

2020-11-01 00:00:00

pages

S9-S14

eissn

0890-5339

issn

1531-2291

journal_volume

34 Suppl 3

pub_type

杂志文章

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Arthroplasty Versus Internal Fixation for the Treatment of Undisplaced Femoral Neck Fractures: A Retrospective Cohort Study.