Impaired hip muscle stregth, function and patient reported outcomes in women with hip abductor tendon tears: a cross sectional study of 62 patients and 24 healthy volunteers

TY - JOUR

T1 - Impaired hip muscle stregth, function and patient reported outcomes in women with hip abductor tendon tears

T2 - a cross sectional study of 62 patients and 24 healthy volunteers

AU - Bohn, Marie Bagger

AU - Kierkegaard-Brøchner, Signe

AU - Spoorendonk, Kasper

AU - Jørgensen, Stian Langgård

AU - Lund, Bent

AU - Lange, Jeppe

PY - 2023

Y1 - 2023

N2 - ObjectiveThe impact of hip abductor tendon tears (HAT) on hip muscle-strength in women is lacking. We investigated maximal isometric hip muscle-strength (MIHS) in women with MRI verified HAT scheduled for surgery and compared with age-matched healthy volunteers (HV), and whether MIHS was correlated with patient-reported outcomes (PRO) and the 30-second sit-to-stand-test (STS).DesignCross-sectional, comparative study.MethodsMIHS was assessed with a handheld dynamometer in 62 patients and 24 HV (100% women) with mean±SD age of 55±12 and 53±6 years. PROs used: Copenhagen Hip and Groin Outcome score (HAGOS) and Oxford Hip Score (OHS). STS assess lower-limb functional capacity.ResultsPatients compared to HV: - had lower MIHS in abduction (mean difference [95%CI], Nm/kg) (-0.41 [-0.52;-0.29]), extension (- 0.36 [-0.47;-0.25]) and external rotation (-0.24 [-0.32;-0.17])) (p<0.001). - reported 53-87 and 26 points lower in all HAGOS subgroups and OHS (p<0.001). - completed fewer repetitions in the STS (12 ±4 vs. 18 ±5 repetitions, (p<0.001)).A significant correlation was observed between STS performance and MIHS in abduction (r=0.47, p<0.001), extension (r=0.41, p=0.005) and external rotation (r=0.49, p<0.001).ConclusionWomen with MRI verified HAT scheduled for surgical repair demonstrated substantial impairments in MIHS, lower limb functional capacity and PRO compared to HV.

AB - ObjectiveThe impact of hip abductor tendon tears (HAT) on hip muscle-strength in women is lacking. We investigated maximal isometric hip muscle-strength (MIHS) in women with MRI verified HAT scheduled for surgery and compared with age-matched healthy volunteers (HV), and whether MIHS was correlated with patient-reported outcomes (PRO) and the 30-second sit-to-stand-test (STS).DesignCross-sectional, comparative study.MethodsMIHS was assessed with a handheld dynamometer in 62 patients and 24 HV (100% women) with mean±SD age of 55±12 and 53±6 years. PROs used: Copenhagen Hip and Groin Outcome score (HAGOS) and Oxford Hip Score (OHS). STS assess lower-limb functional capacity.ResultsPatients compared to HV: - had lower MIHS in abduction (mean difference [95%CI], Nm/kg) (-0.41 [-0.52;-0.29]), extension (- 0.36 [-0.47;-0.25]) and external rotation (-0.24 [-0.32;-0.17])) (p<0.001). - reported 53-87 and 26 points lower in all HAGOS subgroups and OHS (p<0.001). - completed fewer repetitions in the STS (12 ±4 vs. 18 ±5 repetitions, (p<0.001)).A significant correlation was observed between STS performance and MIHS in abduction (r=0.47, p<0.001), extension (r=0.41, p=0.005) and external rotation (r=0.49, p<0.001).ConclusionWomen with MRI verified HAT scheduled for surgical repair demonstrated substantial impairments in MIHS, lower limb functional capacity and PRO compared to HV.

U2 - 10.2519/josptopen.2023.0012

DO - 10.2519/josptopen.2023.0012

M3 - Journal article

VL - 1

SP - 1

EP - 17

JO - Jospt Open

JF - Jospt Open

IS - 1

ER -