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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| OWDFO: Open Wedge Distal Femoral Varus osteotomy |
| ||
| CWDFO: Closed Wedge Distal Femoral Varus osteotomy |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Data collection from routine medical records | Other | Data collection from routine medical records (clinical and radiological data) |
|
| Measure | Description | Time Frame |
|---|---|---|
| Accuracy of the correction of the deformity | 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°) | at Baseline |
| Measure | Description | Time Frame |
|---|---|---|
| incidence of disruptive hardware | 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 | at Baseline |
| pain level |
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Inclusion Criteria:
Exclusion Criteria:
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All patients who received a DFO for valgus knee arthritis at the Clinic of Orthopaedics and Traumatology at the University Hospital Basel between 1.1.2013 and 31.12.2017 will be included in this study.
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| Name | Affiliation | Role |
|---|---|---|
| Annegret Muendermann, Prof. Dr. med. | Department of Orthopaedics and Traumatology, University Hospital Basel | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Clinic for Orthopaedics and Traumatology, University Hospital basel | Basel | Canton of Basel-City | 4031 | Switzerland |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 37278744 | Derived | Ismailidis P, Schmid C, Werner J, Nuesch C, Mundermann A, Pagenstert G, Egloff C. Distal femoral osteotomy for the valgus knee: indications, complications, clinical and radiological outcome. Arch Orthop Trauma Surg. 2023 Oct;143(10):6147-6157. doi: 10.1007/s00402-023-04923-w. Epub 2023 Jun 6. |
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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. |
| at Baseline |
| pain medication intake preoperatively and at the final follow up | pain medication intake preoperatively and at the final follow up | at Baseline |