Knee Arthropathy
Conditions
Keywords
ligament tension, knee arthroplasty
Brief summary
1. To develop a new type of knee joint pressure detection device and demonstrate its feasibility 2. To analyze individual differences of knee ligament tension using the new device and explore the influencing factors of ligament tension 3. To explore the correlation between knee ligament tension and postoperative knee function
Interventions
A gap plate can measure knee joint pressure by tension sensor. This is a part of routine medical care.
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients receiving primary knee arthroplasty
Exclusion criteria
* Patients having had a surgery history of the ipsilateral knee
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Ligament tension | During operation | Measure the medial and lateral ligament tension of the operative knee at different flexion angle |
| Pre-operative knee function | 1day before operation | Assess the knee function using AKS (The American knee society, 0\ 200, higher scores mean a better outcome) scale before operation |
| Post-operative knee function | The 3rd day after operation | Assess the knee function using AKS scale at the 3rd day post-operation |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Post-operative infection test | The 1st day after operation | Include CRP |
| Pre-operative infection test | 1day before operation | Include C-reactive protein (CRP) |
Countries
China