The Recovery Time of Quadriceps Strength After Total Knee Arthroplasty (TKA): The Effect of Quadriceps Incision Length

The Recovery Time of Quadriceps Strength After Total Knee Arthroplasty: The Effect of Quadriceps Incision Length

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01450904

Enrollment

Registered

2011-10-12

Start date

2011-04-30

Completion date

2011-10-31

Last updated

2011-10-12

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

Conditions

Osteoarthritis of Knee

Brief summary

Minimally invasive total knee arthroplasty (MIS-TKA) became the popular technique. It had the less postoperative pain and shorter recovery time compared to the conventional technique. With using MIS technique, less cut of quadriceps tendon was the key. It related to keep more quadriceps strength and improve functional performance after TKA. However, there was no previous studies about the effect of quadriceps incision length in the recovery time of the quadriceps strength. The investigators hypothesized that longer quadriceps incision affected the longer recovery time of quadriceps strength in MIS-TKA.

Interventions

PROCEDUREQuadriceps incision < 2 cm

MIS-TKA was performed with less than 2 cm Quadriceps incision length

PROCEDUREQuadriceps incision 2-4 cm

MIS-TKA was performed with 2 to 4 cm Quadriceps incision length

PROCEDUREQuadriceps incision > 4 cm

MIS-TKA was performed with more than 4 cm Quadriceps incision length

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

TRIPLE (Subject, Caregiver, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

40 Years to 85 Years

Healthy volunteers

Inclusion criteria

* The patients who diagnosed primary osteoarthritis of knee with 1. varus or valgus deformity \< 20 degrees 2. preoperative range of motion \> 90 degrees 3. extension lag \< 10 degrees 4. Flexion contracture \< 30 degrees

Exclusion criteria

* Bilateral simultaneous total knee arthroplasty * Previous knee surgery * Inadequate exposure during the surgery

Design outcomes

Primary

Measure	Time frame	Description
The recovery time of Quadriceps strength	Upto 6 months	Quadriceps strength was tested every month postoperatively, Recovery time was the amount of months which the Quadriceps strength returned to preoperative level.

Outcome results

None listed

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