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Sub-vastus versus Medial parapatellar Arthrotomy for total Knee replacement

Sub-vastus versus Medial parapatellar Arthrotomy for total Knee replacement

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN44544446
Enrollment
231
Registered
2005-11-22
Start date
2001-02-01
Completion date
Unknown
Last updated
2022-11-07

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

Conditions

Total knee replacement Surgery Total knee replacement

Interventions

Standard medial parapatellar approach or sub-vastus approach for primary bi- or tri- compartmental total knee replacement.

Sponsors

University Hospital of North Staffordshire NHS Trust (UK)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. They require a bi- or tri- compartmental knee replacement 2. They require a unilateral knee replacement 3. They have given their informed consent 4. The surgeon has no clear preference for either of the approaches

Exclusion criteria

Exclusion criteria: 1. They need a revision knee replacement 2. They have had, or will require a major arthrotomy in the other knee in a 12 month period 3. They have had previous open surgery in or around the knee in the previous 12 months e.g. high tibial osteotomy, femoal osteotmy, open reduction internal fixation (ORIF) for fracture, patellar realignment, patellectomy and open menisectomy 4. They require a bi-lateral knee replacement at a single visit 5. They have a valgus angle of degrees or more

Design outcomes

Primary

MeasureTime frame
Knee Society Score at 52 weeks.

Secondary

MeasureTime frame
1. EuroQol-5D 2. Western Ontario and McMaster Universities (WOMAC) osteoarthritis index 3. 36-item short form health survey (SF-36) 4. Time to normal activities/return to function 5. Pain 6. Complications 7. Surgeon's ease of exposure 8. Length of hospital stay

Countries

England, United Kingdom

Outcome results

None listed

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