Location

Philadelphia, PA

Start Date

9-5-2018 1:00 PM

Description

Introduction: The objective of this study was to evaluate the incidence of bilateral femoroacetabular impingement (FAI) in a consecutive group of patients and to evaluate the fate of the asymptomatic hip with

FAI.

Method: Between 2004 to 2016, 652 patients presented with hip pain arising from underlying FAI. Diagnosis of FAI was made based on clinical symptoms and imaging. 557 patients (646 hips) were included for the final analysis. Of these, 170 patients had bilateral radiological diagnosis of FAI. Of these, 88 patients presented with bilateral hip symptoms. The remaining 82 patients had unilateral hip symptoms. Of these 82 patients, 8 patients decided to have surgery on both hips under the same anesthesia. The

remaining 74 patients decided to have the contralateral asymptomatic hip with FAI observed.

Results: Of the cohort with bilateral FAI and an asymptomatic hip, 60 patients became symptomatic at an average 2.1 years follow-up. Of these 60 patients 43 patients needed surgical intervention. Binary logistic

regression model identified that reduced neck shaft angle, increased lateral CE angle and increased alpha angle, younger age as predictors for developing symptoms in the contralateral hip.

Discussion: Based on this study it appears that the incidence of bilateral FAI is common. The majority of patients with unilateral symptomatic FAI and radiographic evidence of bilateral FAI become symptomatic relatively quickly and require surgical intervention in the contralateral hip.

Embargo Period

5-30-2018

Comments

Presented by Hannah Groff.

COinS
 
May 9th, 1:00 PM

Bilateral Femoroacetabular Impingement: The Fate of the Asymptomatic Hip

Philadelphia, PA

Introduction: The objective of this study was to evaluate the incidence of bilateral femoroacetabular impingement (FAI) in a consecutive group of patients and to evaluate the fate of the asymptomatic hip with

FAI.

Method: Between 2004 to 2016, 652 patients presented with hip pain arising from underlying FAI. Diagnosis of FAI was made based on clinical symptoms and imaging. 557 patients (646 hips) were included for the final analysis. Of these, 170 patients had bilateral radiological diagnosis of FAI. Of these, 88 patients presented with bilateral hip symptoms. The remaining 82 patients had unilateral hip symptoms. Of these 82 patients, 8 patients decided to have surgery on both hips under the same anesthesia. The

remaining 74 patients decided to have the contralateral asymptomatic hip with FAI observed.

Results: Of the cohort with bilateral FAI and an asymptomatic hip, 60 patients became symptomatic at an average 2.1 years follow-up. Of these 60 patients 43 patients needed surgical intervention. Binary logistic

regression model identified that reduced neck shaft angle, increased lateral CE angle and increased alpha angle, younger age as predictors for developing symptoms in the contralateral hip.

Discussion: Based on this study it appears that the incidence of bilateral FAI is common. The majority of patients with unilateral symptomatic FAI and radiographic evidence of bilateral FAI become symptomatic relatively quickly and require surgical intervention in the contralateral hip.