Radiographic Outcomes of Knees Operated According to the Indications for Cementless Total Knee Arthroplasty: Is There a Difference in Radiolucent Lines?

Radiographic Outcomes of Knees Operated According to the Indications for Cementless Total Knee Arthroplasty - the Indications for Cementless Total Knee Arthroplasty

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000059347

Enrollment

100

Registered

2025-10-09

Start date

2025-10-09

Completion date

Unknown

Last updated

2026-09-14

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

Conditions

Knee Osteoarthritis

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Cementless fixation is selected for knees with a preoperative tibial bone mineral density of 46.7 or higher on CT, while cemented fixation is chosen for knees with a density below 46.7.

Exclusion criteria

Exclusion criteria: Severely valgus knees requiring stem extension, knees requiring augmentation, and knees with more than 11 mm of lateral tibial resection

Design outcomes

Primary

Measure	Time frame
To investigate the incidence of radiolucent lines at one year postoperatively in knees operated according to the proposed indication criteria.	—

Secondary

Measure	Time frame
(1) Clinical outcomes at one year postoperatively, including the 2011 Knee Score, FJS-12, or other PROMs; (2) presence of early loosening, assessed by the rate of subsidence; and (3) the relationship between step count and the incidence of radiolucent lines.	—

Countries

Japan

Contacts

Public ContactYoshinori Mikashima

Takagi Hospital Oume Knee Surgery Center

ymikashima2007@yahoo.co.jp0428315255

Outcome results