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· DOS Abstracts
Muscle-tendon related pain in 100 patients with hip
dysplasia: prevalence and associations with self-re-
ported hip disability and muscle strength
Julie Sandell Jacobsen, Per Hölmich, Kristian Thorborg, Bolvig Lars, Stig Stor-
gaard Jakobsen, Kjeld Soballe, Inger Mechlenburg
Department of Physiotherapy, Faculty of Health Sciences, VIA University Col-
lege Aarhus; Sports Orthopedic Research Center-Copenhagen (SORC-C), De-
partment of Orthopaedic Surgery, Copenhagen University Hospital, Amager and
Hvidovre; Sports Orthopedic Research Center-Copenhagen (SORC-C), Depart-
ment of Orthopaedic Surgery, Copenhagen University Hospital, Amager and
Hvidovre; Department of Radiology, Aarhus University Hospital; Department
of Orthopaedic Surgery, Aarhus University Hospital; Department of Orthopae-
dic Surgery, Aarhus University Hospital; Centre of Research in Rehabilitation
(CORIR), Institute of Clinical Medicine, Aarhus University
Background:
Intra-articular injury has been described as primary cause of pain
in hip dysplasia. At this point, it is unknown whether external muscle-tendon
related pain coexists with intra-articular pathology.
Purpose / Aim of Study:
The primary aim was to identify muscle- tendon
related pain in 100 patients with hip dysplasia. The secondary aim was to test if
muscle-tendon related pain is linearly associated to self-reported hip disability
and muscle strength in patients with hip dysplasia.
Materials and Methods:
One hundred patients (17 men) with a mean age of
29 +/-9 years were included. Clinical entity approach was carried out to iden-
tify muscle-tendon related pain. Muscle strength was assessed with a handheld
dynamometer and self-reported hip disability was recorded with the Copenha-
gen Hip and Groin Outcome Score (HAGOS).
Findings / Results:
Iliopsoas- and abductor-related pain were frequently iden-
tified with prevalences of 56% (CI 46; 66) and 42% (CI 32; 52), respectively.
Adductor-, hamstrings- and rectus abdominis-related pain were less common.
There was a significant inverse linear association between muscle- tendon re-
lated pain and self-reported hip disability ranging from -3.35 to -7.51 points in
the adjusted analysis (p<0.05). Likewise an inverse linear association between
muscle-tendon related pain and muscle strength was found ranging from -0.11
Nm/kg to -0.12 Nm/kg in the adjusted analysis (p<0.05).
Conclusions:
Muscle-tendon related pain seems to exist in about half of pa-
tients with hip dysplasia with a high prevalence of muscle-tendon related pain
in the iliopsoas and the hip abductors and affects patients’ self-reported hip
disability and muscle strength negatively.
No conflicts of interest reported
114.