A study to track the relationship between knee bending motion and fear of movement in patients after total knee replacement surgery, and to investigate the rehabilitative effects on fear of movement.

A longitudinal follow-up and intervention effect study of the association between kinematic data and fear of movement of knee flexion in the loaded position in post-TKA patients. - A longitudinal follow-up and intervention effect study of the association between kinematic data and fear of movement of knee flexion in the loaded position in post-TKA patients.

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000058775

Enrollment

130

Registered

2025-08-13

Start date

2025-05-15

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 knee (after total knee arthroplasty)

Interventions

Pain neuroscience education plus graded exposure in addition to usual postoperative rehabilitation.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who have undergone total knee arthroplasty (TKA) with the same implant model performed by the same surgeon at Toshiyama-kai Kiba Hospital.

Exclusion criteria

Exclusion criteria: 1. Patients with difficulty understanding tasks due to severe cognitive decline, 2. Patients with a history of central nervous system disease, 3. Patients with a history of surgery on other parts of the body within the past 3 months, 4. Patients with other lower limb diseases (hip osteoarthritis, rheumatism, etc.), 5. Patients with chronic pain from before surgery.

Design outcomes

Primary

Measure	Time frame
Correlation coefficients between kinematic data (maximum angle, maximum angular velocity, turnaround time, and start delay) and fear of movement (FearVAS and TSK-11) at 1, 3, and 6 months postoperatively. Baseline is 1 month postoperatively; changes in FearVAS, TSK-11, and PainVAS will be assessed at 3 and 6 months postoperatively.	—

Secondary

Measure	Time frame
Changes in FearVAS (during task execution), PainVAS (during task execution), Pain Catastrophizing Scale (PCS) score, maximum flexion angle, maximum flexion angular velocity, maximum extension angular velocity, and start delay of knee flexion movement under load ,Changes in knee joint extensor muscle strength (kgf/kg) Changes in knee joint extension muscle strength (kgf/kg), changes in range of motion of the flexion of the knee joint for transverse motion, changes in the Timed Up and Go test, changes in the 10-meter walk test, and changes in KOOS pain and ADL scores. ,hanges in adverse events (exacerbation of pain, falls, etc.) in the intervention study	—

Measure

Time frame

Changes in FearVAS (during task execution), PainVAS (during task execution), Pain Catastrophizing Scale (PCS) score, maximum flexion angle, maximum flexion angular velocity, maximum extension angular velocity, and start delay of knee flexion movement under load ,Changes in knee joint extensor muscle strength (kgf/kg) Changes in knee joint extension muscle strength (kgf/kg), changes in range of motion of the flexion of the knee joint for transverse motion, changes in the Timed Up and Go test, changes in the 10-meter walk test, and changes in KOOS pain and ADL scores. ,hanges in adverse events (exacerbation of pain, falls, etc.) in the intervention study

—

Countries

Japan

Contacts

Public ContactYuki Kawasaki

Juzankai Medical Corporation, Kiba Hospital Rehabilitation Center

kawasakiyuuki1123@yahoo.co.jp080-6156-0291

Outcome results

None listed

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