Table 2

Descriptive information: Intervention studies of physical impairments and/or activity limitations in people with and without FAI

Intervention studies
Author, YearStudy samplePost-treatment follow-upDrop outsInterventionImpairment and/or activity limitation investigated
Lamontagne, 2011n=10 (Cam FAI)8–32 months postarthroscopynoneArthroscopySquatting ability
7 (70%) males
Mean±SD age=29.9±7.2 years
Recruited from patients with FAI scheduled for surgery
Diagnosis based on:
▸ Radiographs (A/P and Dunn view) (mean α angle >50°)
▸ Positive impingement test
Emara, 2011n=37 (all types FAI)25–28 months from baseline4 drop outs—underwent surgical treatment after conservative treatment failedConservative treatment programme over 24 months including avoidance, physiotherapy and modifications of activities of daily livingROM
27 (73%) males
Mean±SD age=33±5 years
Recruited from hospital
Diagnosis based on:
▸ Radiographs (A/P and frog lateral) (α angle <60°)
▸ Unilateral hip pain secondary to FAI
▸ Positive impingement test
Rylander, 2012n=11 (all types FAI)12 month postarthroscopynoneArthroscopyROM
8 (73%) males
Mean±SD age=33.1±7.8 years
Recruited from patients with FAI scheduled for surgery
Diagnosis based on:
▸ Radiographs and MRI
▸ Positive impingement test and labral stress test
▸ History and clinical examination
Brisson, 2013n=10 (Cam FAI)10–32 months postarthroscopyNoneArthroscopyROM
7 (70%) males
Mean±SD age=29.9±7.2 years
Recruited from NR
Diagnosis based on:
▸ Radiographs (A/P and Dunn view) (mean α angle >50.5°)
▸ Positive impingement test
Rylander, 2013n=17 (all types FAI)12 month postarthroscopyNoneArthroscopyROM
12 (71%) males
Mean±SD age=35.4±8.9 years
Recruited from patients with FAI scheduled for surgery
Diagnosis based on:
▸ Radiographs and MRI
▸ Cam: mean α angle >54°; Pincer: centre edge angle >35°
▸ History and clinical examination (criteria not specified)
  • A/P, anteroposterior; FAI, femoroacetabular impingement; ROM, range of motion.