Study purpose is to evaluate perioperative usefulness of Platelet-rich Plasma (PRP) in total hip arthroplasty (THA) surgery. The study is designed as a randomized double blinded study using saline as placebo. The measurement outcomes includes objective variables (MRI, dynamometer) as well as subjective measurements (Oxford Hip Score, Harris Hip Score). Patients are assigned to two different groups, according to a randomization list. PRP (approximately 9ml from which 1ml is delivered to in-house laboratory for the measurement of platelet count) is obtained from venous blood and applied to m. gluteus medius during the closure of modified lateral approach (Hardinge). Study participants are evaluated preoperatively by trained physiotherapist. After surgery, participants undergo clinical evaluation and imaged (MRI) at 3 and 12 months post-operative. In the same time points, strength, Harris Hip Score and Oxford Hip Score. At the end of the study, the nature of the injected substance is revealed to the patients.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
80
Satakunta Central Hospital
Pori, Finland
RECRUITINGThe decrease of T2 weighted signaling between PRP and placebo group
Quantitative method of tissue healing
Time frame: Change from 3 months at 12 months
Differences in Harris Hip Score points between PRP and placebo group
Quality method of post-operative healing
Time frame: Change from 3 months at 12 months
Comparison of hip abduction strengths between PRP and placebo group using dynamometer
Quantitive method of abduction strengths
Time frame: Change from 3 months at 12 months
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