An observational study in Treatment Outcome, sponsored by JointResearch. Enrolling by invitation at 1 site in Netherlands. Open to participants aged 5 Years to 105 Years. Per ClinicalTrials.gov, last updated 2026-05-14.
Sponsored by JointResearch · Observational
The research questions this study aims to answer are as follows:
Primary research question:
"Do primary total hip arthroplasties for patients with OA, hip fracture or osteonecrosis with the 150mm Lubinus SPII hip stem have better mortality and stem revision rates than primary total hip arthroplasties with the 130mm hip stem?"
Secondary aims include:
To answer these questions, this study has been allowed use of registered data from the LROI (dutch arthroplasty registry) and the SAR (swedish arthroplasty registry). After exclusion of patients who did not meet inclusion criteria between 2007-2020, approximately 110000 patients remain eligible for analysis.
JointResearch is the lead sponsor of 13 studies on the registry; 7 are open to participants now.
Counted across the registry records on this site, refreshed daily.
All patients incorporated in the LROI and SAR databases between 2007 and 2020 were included, if they satisfied the in- and exclusion criteria.
Listed in registry for primary hip arthroplasty.
Exclusion Criteria:
Patients who have received primary hip replacement therapy with an indication of osteoarhritis, osteonecrosis or fracture.
Procedure: Lubinus SPII hip stem 130mm · Procedure: Lubinus SPII hip stem 150mm
Shorter length of the SPII hip stem
Also known as: 130mm stem
Longer length of the SPII hip stem
Also known as: 150mm stem
Mortality rate
Time from primary hip surgery to patient death, per hip stem length
Time frame: From date of surgery to date of event (death), minimally 2 years up to 16 years (2007-2023)
Revision rate
Time from primary hip surgery to implant failure, per hip stem length
Time frame: From date of surgery to date of event (revision), minimally 2 years up to 16 years (2007-2023)
NRS pain score
pain score for rest and activity, rated 0 - 10 (10 is max pain)
Time frame: before surgery, 3-6 months after surgery, 12 months after surgery
Oxford hip score
Hip functionality and pain intensity score , 0 - 60, 60 is max pain/least functionality
Time frame: before surgery, 3-6 months after surgery, 12 months after surgery
EQ - 5D
Quality of life measurement based on 5 questions with a score of 0 - 100 (how well does patient experience health, 100 is best)
Time frame: before surgery, 3-6 months after surgery, 12 months after surgery
HOOS - PS
Hip functionality, disability and pain test, 5 point liker scale ( 0 - 4), higher score is more functional difficulty
Time frame: before surgery, 3-6 months after surgery, 12 months after surgery
Revision rate
Time from primary hip surgery to implant failure, per cementation type
Time frame: From date of surgery to date of event (death), minimally 2 years up to 16 years (2007-2023)
Mortality rate
Time from primary hip surgery to patient death, per cementation type
Time frame: From date of surgery to date of event (revision), minimally 2 years up to 16 years (2007-2023)
Plan to share: No
No publications or documents are linked to this record.
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JointResearch