Comparison of periprosthetic bone remodeling following, bone morphology, and stem fixation of the fully hydroxyapatite coated stem in primary total hip arthroplasty. -A randomized controlled trial-

Comparison of periprosthetic bone remodeling following, bone morphology, and stem fixation of the fully hydroxyapatite coated stem in primary total hip arthroplasty. -A randomized controlled trial- - Comparison of periprosthetic bone remodeling following, bone morphology, and stem fixation of the fully hydroxyapatite coated stem in primary total hip arthroplasty. -A randomized controlled trial-

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000040374

Enrollment

100

Registered

2020-07-01

Start date

2020-07-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

osteoarthritis of the hip osteonecrosis of the femoral head

Interventions

fully hydroxyapatite coated stem (Polar stem) fully hydroxyapatite coated stem (Avenir stm)

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: osteoarthritis of the hip osteonecrosis of the hip

Exclusion criteria

Exclusion criteria: revision surgery severe osteoporosis pregnant woman lactating woman

Design outcomes

Primary

Measure	Time frame
periprosthetic bone remodeling following	—

Secondary

Measure	Time frame
X-Ray examination clinical results	—

Countries

Japan

Contacts

Public ContactMasahiko Mihara

Shonan Kamakura Joint Reconstruction Center Orthopaedic surgery

mail@skjrc.jp0467472377

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026