A Comparative Study of Femoral Extramedullary and Intramedullary Alignment Systems in Total Knee Arthroplasty
Overview
- Phase
- N/A
- Intervention
- Not specified
- Conditions
- Knee Osteoarthritis
- Sponsor
- The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
- Enrollment
- 100
- Locations
- 1
- Primary Endpoint
- Imaging tests
- Last Updated
- 8 years ago
Overview
Brief Summary
A prospective study will be performed to compare the clinical outcome after total knee arthroplasty (TKA) using two different alignment systems: an extramedullary system versus an intramedullary system. The extramedullary femoral alignment system is newly designed. These two systems are used to make the distal femoral resection in 100 patients in a random order.
Investigators
Qing Jiang
Prof.
The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School
Eligibility Criteria
Inclusion Criteria
- •Varus knee; degrees of extra articular deformity \< 15°; Knee Osteoarthritis; Straight limited \< 30°; range of knee flexion \> 90°; No hip abnormalities
Exclusion Criteria
- •Valgus knee; degrees of extra articular deformity \> 15°; Knee infection; Rheumatic arthritis; Ankylosing Spondylitis; Prior femoral surgery
Outcomes
Primary Outcomes
Imaging tests
Time Frame: pre surgery and 3, 12 months post surgery
Evaluate the X-ray changes. Measuring the hip-knee-ankle (HKA) angle by x-ray films
Assess the changes of KSS scores
Time Frame: pre surgery and 3, 12 months post surgery
KSS scores will be recorded.
Assess the changes of SF-36 scores
Time Frame: pre surgery and 3, 12 months post surgery
SF-36 scores will be recorded
Assess the changes of WOMAC scores
Time Frame: pre surgery and 3, 12 months post surgery
WOMAC scores will be recorded.
Secondary Outcomes
- deep vein thrombosis (DVT)(pre surgery and 3, 12 months post surgery)
- Range of knee motion(pre surgery and 3, 12 months post surgery)