Valgus Malalignment of the Knee
Conditions
Keywords
Closed Wedge Distal Femoral Varus Osteotomy (CWDFO), Open Wedge Distal Femoral Varus Osteotomy (OWDFO)
Brief summary
This study is to analyze the indications of the two most popular techniques of distal femoral osteotomy (DFO) performed in patients with valgus malalignment and symptomatic degenerative changes in the lateral compartment of the knee and to evaluate the clinical and radiological outcome of a case series of patients who have received this operation at the Department of Orthopaedics and Traumatology and the Department of Surgery of the University Hospital Basel.
Interventions
Data collection from routine medical records (clinical and radiological data)
Sponsors
University Hospital, Basel, Switzerland
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* patients who received a distal femoral osteotomy (DFO) for valgus knee osteoarthritis between 1.1.2013 and 31.12.2017
Exclusion criteria
* Absence of informed consent * Absence of X-Rays documenting the preoperative deformity or postoperative result
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Accuracy of the correction of the deformity | at Baseline | The mechanical axis of the femur and the tibia and hence the mechanical tibiofemoral angle (MFTA) will be measured pre- and postoperatively. (the goal of the operation is a neutral alignment, MFTA angle of 0°) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| incidence of disruptive hardware | at Baseline | Information regarding the incidence of disruptive hardware and of hardware removal operations because of this, time needed until bony union is achieved, complications, delayed and non-union rates and need of conversion to arthroplasty |
| pain level | at Baseline | Information regarding pain levels measured with visual analog scale score (VAS). The visual analogue scale (VAS) is a scale used to determine the pain intensity experienced by individuals. It consists of a line, approximately 10-15 cm in length, with the left side signifying no pain with a smiling face image and the right side signifying the worst pain. |
| pain medication intake preoperatively and at the final follow up | at Baseline | pain medication intake preoperatively and at the final follow up |
Countries
Switzerland
Outcome results
None listed