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DOS Kongressen 2017 ·
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Preoperative progressive resistance training in patients
with hip dysplasia - a feasibility study
Louise Mortensen, Jeppe Schultz, Anton Elsner, Stig S. Jakobsen, Kjeld Søballe, Julie S.
Jakobsen, Signe Kierkegaard, Ulrik Dalgas, Inger Mechlenburg
Department of orthopaedic surgery, Aarhus University Hospital; Section of Sport Sci-
ence, Department of Public Health, Aarhus University; Section of Sport Science, Depart-
ment of Public Health, Aarhus University; Department of orthopaedic surgery, Aarhus
University Hospital; Department of orthopaedic surgery, Aarhus University Hospital;
Department of Physiotherapy, Faculty of Health Sciences, VIA University College; De-
partment of orthopaedic surgery, Aarhus University Hospital; Section of Sport Science,
Department of Public Health, Aarhus University ; Department of orthopaedic surgery,
Aarhus University Hospital
Background:
Exercise as treatment for optimizing surgical outcomes of periacetabular
osteotomy (PAO) is sparsely investigated. Nevertheless, improving hip muscle strength
through progressive resistance training (PRT) may optimize function and outcome of
surgery.
Purpose / Aim of Study:
To examine if PRT is feasible in patients with hip dysplasia
(HD). A secondary purpose was to investigate patient reported outcomes, muscle per-
formance and hip muscle strength following PRT.
Materials and Methods:
The patients performed 8-weeks (20 sessions) of supervised
PRT. Feasibility was evaluated as adherence, the number of dropouts and adverse events.
Visual analog scale (VAS) was reported after each exercise and one day after training
sessions. Pre- and post the intervention patients completed the Copenhagen Hip and
Groin Outcome Score (HAGOS), performed two hop-tests and had their hip extensor and
flexor peak torque assessed by isokinetic dynamometry.
Findings / Results:
16 patients, mean age 28 (range 22-40) years, completed the
PRT intervention. No patients dropped out and no adverse events were recorded. Ad-
herence to training was 90.3% ±9.0%. Acceptable pain levels (VAS ≤50) were reported
during 95% of exercise sessions and 92.3% when assessed on the day after a training
session. Four out of six HAGOS subscales improved (p <0.05), as did standing distance
jump (8.3cm 95%CI [1.2, 15.3]) and countermovement jump (1.8cm 95%CI [0.7, 2.9])
on the affected side. Isokinetic concentric hip flexion peak torque showed significant
improvements (15.8 Nm 95%CI [5.9, 25.8]) on the affected side, as did isometric hip
flexion (11.0 NM 95%CI [1.1, 21.0]).
Conclusions:
Supervised preoperative PRT is feasible in patients with HD scheduled for
PAO. Furthermore, PRT may improve pain levels, patient reported outcomes, functional
performance and hip flexion muscle strength.
No conflicts of interest reported
77.