Open Versus Closed Wedge Distal Femoral Varus Osteotomy for the Valgus Knee. Indications, Clinical and Radiological Outcome

University Hospital, Basel, Switzerland22 enrolled

Overview

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.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Valgus Malalignment of the Knee

Interventions

Data collection from routine medical recordsOTHER

Data collection from routine medical records (clinical and radiological data)

Eligibility

Sex: ALL

Medical Language ↔ Plain English

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

Locations (1)

Clinic for Orthopaedics and Traumatology, University Hospital basel

Basel, Canton of Basel-City, Switzerland

Outcomes

Primary Outcomes

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°)

Time frame: at Baseline

Secondary Outcomes

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

Time frame: at Baseline

pain level

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.

Time frame: at Baseline

pain medication intake preoperatively and at the final follow up

Time frame: at Baseline

Data from ClinicalTrials.gov

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