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A Prospective Randomized Study of A New Minimally Invasive Total Knee Arthroplasty System Compared with Conventional Surgery

A Prospective Randomized Study of A New Minimally Invasive Total Knee Arthroplasty System Compared with Conventional Surgery

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR-TRC-11001278
Enrollment
Unknown
Registered
2011-04-18
Start date
2011-06-01
Completion date
Unknown
Last updated
2017-04-18

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

Conditions

Knee osteoarthritis

Interventions

Group A:Minimally invasive total knee arthroplasty
Group B:Minimally invasive total knee arthroplasty

Sponsors

Sun Yat-Sen University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
55 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Patients that are scheduled for a primary total knee arthroplasty; 2. NYHA functional class II or lower; 3. Grade 5 strength ( Lovett scale) of all muscles; 4. Good self-care ability such as bathing and daily diet, walking without assist or walking aid; 5. Vargus deformity <15 degree valgus deformity <20 degree flexion contracture <15 degree, range of motion larger than 0°-90 degree; 6. Volunteered to join, good compliance, have already signed informed consent form.

Exclusion criteria

Exclusion criteria: 1. Obesity Body mass index >30; 2. Need do other surgery procedures around knee, such as removal of internal fixator; 3. Sever osteoporosis; 4. Revision total knee arthroplasty; 5. Have previously been received knee surgery which was not arthroscopy; 6. Ankylosis of knee; 7. Patella baja diagnosed by any one of the criteria: Blumensaat's line, Insall-Salvati ratio, Modified Insall-Salvati ratio, Blackburne-Peel, Caton-Deschamps; 8. With other chronic disease, hepatic or renal insufficiency; 9. Bed compliance.

Design outcomes

Primary

MeasureTime frame
KSS score;Total Knee Arthroplasty Radiographic Evaluation and Scoring System;WOMAC score;Visual Analogue Scale;

Countries

China

Contacts

Public ContactDongliang Xu
dddrxu@163.com+86 13609779398

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026