Sub-Vastus Versus Mid-Vastus Arthrotomy for Total Knee Arthroplasty: a Randomized Clinical Trial

Sub-Vastus Versus Mid-Vastus Arthrotomy for Total Knee Arthroplasty: a Randomized Clinical Trial With One Year Follow-up

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT00925626

Enrollment

100

Registered

2009-06-22

Start date

2009-06-30

Completion date

2015-08-31

Last updated

2021-07-07

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

Conditions

Tricompartmental Gonarthrosis

Brief summary

Randomized, single-blind trial in which one group of patients will be operated with a Mid-Vastus approach of the knee joint and the other group will undergo knee surgery with a Sub-Vastus approach.

Interventions

PROCEDURESub-Vastus arthrotomy

Sub-vastus arthrotomy

PROCEDUREMid - Vastus arthrotomy

Mid-vastus arthrotomy

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Age

45 Years to No maximum

Healthy volunteers

Inclusion criteria

* patients diagnosed with osteoarthrosis of the knee * patients must be in good general health condition

Exclusion criteria

* patients with morbid obesity (BMI \>45) * patients with history of knee surgery, infection or inflammatory disease of the knee joint or large cartilage lesion

Design outcomes

Primary

Measure	Time frame
VAS, KOOS and HSS scales	at day 1, day 2, day 3, day 4 and day 5 post-operatively
Rehabilitation time; time needed for 90° flexion of the knee joint	post-operatively

Secondary

Measure	Time frame
VAS, HSS, KOOS questionnaires	at 6 weeks, 3 months and 12 months after surgery.
Amount and type of analgesic drugs used.	pre-operatively and post-operatively

Countries

Belgium

Outcome results

None listed

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