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

Not Applicable

Completed

• Conditions: Osteoarthritis of Knee
• Interventions: Procedure: Quadriceps incision < 2 cm; Procedure: Quadriceps incision 2-4 cm; Procedure: Quadriceps incision > 4 cm

• Registration Number: NCT01450904
• Lead Sponsor: Mahidol University

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.

Detailed Description

Not available

Study Timeline

• Study Start: 2011-04
• Status Verified: 2011-10
• Primary Completion: 2011-10
• Study Completion: 2011-10
• Study First Submitted: 2011-10-06
• Study First Submitted QC: 2011-10-10
• Last Update Submitted: 2011-10-10
• Study First Posted: 2011-10-12
• Last Update Posted: 2011-10-12

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 60

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Group A	Quadriceps incision < 2 cm	The length of Quadriceps incision was less than 2 cm.
Group B	Quadriceps incision 2-4 cm	The length of Quadriceps incision was 2 to 4 cm.
Group C	Quadriceps incision > 4 cm	The length of Quadriceps incision was more than 4 cm.

Primary Outcome Measures

Name	Time	Method
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.