New hip stem put to the test in 95 patients

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients undergoing elective primary total hip arthroplasty for primary osteoarthritis, who are suitable for implantation of a cementless femoral stem according to the MFinity femoral stem Instructions for Use * Skeletally mature adult aged 18 years and older at the time of enrollment. * Ability to give informed consent. * Patient is informed of the conditions of the study and is willing to participate for the length of the prescribed follow-up period. Exclusion Criteria: * Not meeting the inclusion criteria. * Active infection within the affected hip joint. * Previous total hip replacement or hip fusion of the affected hip joint. * Neuromuscular or neurosensory deficiency limiting the ability to evaluate the safety and effectiveness of the device. * Bone condition that may compromise the stability of the implant * Known allergy or hypersensitivity to the implant material * Immunologically suppressed, or receiving steroids in excess of physiologic dose requirements. * For women of childbearing potential\*: a positive pregnancy test * Patients with severe osteoarthritis in the contralateral hip or other joints that may interfere with the assessment of study outcomes. * Patients who have previously participated in this clinical trial. * a woman is considered of childbearing potential, i.e. fertile, following menarche and until becoming post-menopausal unless permanently sterile. A postmenopausal state is defined as no menses for 12 months without an alternative medical cause. Women using one of the following birth control methods are not considered of childbearing potential: combined (estrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation (oral, intravaginal, or transdermal), progestogen-only hormonal contraception associated with inhibition of ovulation (oral, injectable, or implantable),intrauterine device (IUD), intrauterine hormone-releasing system (IUS), bilateral tubal occlusion, vasectomised partner, and sexual abstinence.