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Partial Synovectomy in Articular Side of Quadriceps Tendon Verified to Reduce Crepitus in Retrospective Study

Partial Synovectomy in Articular Side of Quadriceps Tendon Reduces Crepitus After Posterior Stabilized Total Knee Arthroplasty : a Randomized, Controlled Trial

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06129214
Enrollment
78
Registered
2023-11-13
Start date
2023-10-16
Completion date
2025-10-06
Last updated
2025-02-21

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

Conditions

Osteoarthritis, Knee, Rheumatoid Arthritis, Knee, Spontaneous Osteonecrosis of Knee

Brief summary

Crepitus causing unsatisfied result to patients after posterior stabilized total knee arthroplasty. Recent retrospective study demonstrated removal of hyperplastic synovium in distal quadriceps caused reduce of crepitus. However, this study has limitation of time gap exist between arms, different in observation time and bias caused by retrospective review. Thus aim of this study is that by randomized trial, verified hyperplastic synovium in distal quadriceps causing crepitus. Target enrolled patients in this study are scheduled to perform both total knee arthroplasty. Experimental group is randomized side (right or left) of knee, and control group is other side of knee. Both arms decided by randomized number table. Crepitus measured after 3mo, 6mo, 1year after surgical treatment

Detailed description

Surgical treatment of TKA with synovium removal in distal quadriceps tendon performed classifed as experimental arm and TKA wiout synovium removal classified as control arm. Before surgical treatment, radiologic and physiological evaluation performed to check too much variance shown in either arm. Radiologic parameter include Hip knee ankle angle, Femoral tibial angle, Level of joint line, Insall-Salvati ratio, Posterior tibial slope, Posterior femoral condylar offset, Patellar thickness, Patellar tilt, Patellar displacement. During surgical treatment patella resurfacing in either group excluded this study. Indication of patella resufacing is ICRS grade IV in lateral surface of patella. After surgical procedure done check grade of crepitus (0-no crepitation, 1-fine crepitation, 2-coarse crepitation) with WOMAC, Knee Society Score, Eq-5D (European quality of life -5 Dimensions), Forgotten joint score after 3month, 6month and 1year after surgical procedure. Other collecting variance Age, Gender, BMI, Range of motion of knee, Fmoeral/Tibial component size, PE thickness

Interventions

PROCEDUREPrepectoral

Remove all visible synovium in suprapatellar area under distal quadriceps tendon. All other procedures (Total Knee arthroplasty) are same with no intervention arm.

PROCEDURESubpectoral

No remove any synovium in suparapatellar area under distal quadriceps tendon. All other preocedures are same with experimental arm.

Sponsors

Gangnam Severance Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender
ALL
Age
19 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1.Patients who scheduled to perform both total knee arthroplasty(TKA) using posteiror crucitate sustain type (PS)

Exclusion criteria

1. Lost follow up (Including death of patient) 2. Unexpected complication (e.g) Infection, periprosthetic fracture) 3. Patella resurfacing 4. Canceled surgical treatment 5. Refused to enrolled study 6. Too much radiological or physicological variance shown between either knee

Design outcomes

Primary

MeasureTime frameDescription
Crepitus grade3month, 6month, 1year after surgical treatmentCrepitus grade divided 3 categories ; 0-no crepitus, 1-asymptomatic crepitus, 2-Painful crepitus

Secondary

MeasureTime frameDescription
Insall-Salvati ratio3month, 6month, 1year after surgical treatmentMeasured in true lateral position in 30' knee flextion, measureing patellar position in lateral plain radiograph of knee.
Patellar displacement3month, 6month, 1year after surgical treatmentMeasuring patellar position in merchant view of plain radiograph.
Patellar tilt angle3month, 6month, 1year after surgical treatmentMeasuring patellar position in merchant view of plain radiograph.
Hip knee ankle angle3month, 6month, 1year after surgical treatmentIdentify postop alignment of lower extrimities, which is mechanical axis between femur and tibia in scanogram of low extremity.
Knee society score3month, 6month, 1year after surgical treatmentClinical score evaluate functional ability of patients after surgery (0-100; high value represent better outcome)
WOMAC score3month, 6month, 1year after surgical treatmentClinical score evaluate pain, stiffness, function of knee after surgery (0-96; low value represent better outcome)
Forgotten joint score3month, 6month, 1year after surgical treatmentClinical score evaluate functional outcome after surgery (0-100; low value represent better outcome)
Tibia offset3month, 6month, 1year after surgical treatmentEstimate tibial component position in lateral plain radiograph.

Countries

South Korea

Contacts

Primary ContactWoo Suk Lee
gsirb@yuhs.ac82-2-2019-4601

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026