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Tibial Slope Variation After Opening Wedge High Tibial Osteotomy While No Change in Closing Wedge Technique

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Tibial Slope Variation After Opening Wedge High Tibial Osteotomy While No Change in Closing Wedge Technique

Robert Ferrer-Rivero, MD, SPAIN Oriol Pujol, MD, SPAIN Josep Ferrer-Rivero, MD, SPAIN Gabriel Oliver, MD, PhD, SPAIN

Hospital Universitari de Bellvitge, Barcelona, SPAIN

2025 Congress ePoster Presentation 2025 Congress Not yet rated

Anatomic Location

Knee Tibio - Fibular

Diagnosis / Condition

Osteoarthritis

Treatment / Technique

Osteotomy

Diagnosis Method

X-ray

Summary: Tibial Slope increase after opening wedge high tibial osteotomy while no variation in sagintal plante after closing wedge technique.

Purpose

High tibial osteotomy (HTO) is a common surgical approach for knee valgus correction, with opening wedge (OW-HTO) and closing wedge (CW-HTO) techniques being widely used. This study aimed to evaluate the difference in tibial slope variation between these two techniques.

Methods

A retrospective cohort study was conducted, including patients who underwent OW-HTO or CW-HTO between 2018 and 2020. Functional outcomes (KOOS-12, Tegner activity scale, pain, and satisfaction) and radiological parameters (HKA, MPTA, tibial slope, and patellar height) were analysed.

Results

Fifty-one patients were included (27 OW-HTO, 24 CW-HTO). Tibial slope remained unchanged following CW-HTO, while OW-HTO resulted in a significant increase in mean tibial slope by 1.5º (p<0.001). Both groups demonstrated good to excellent functional outcomes, substantial pain reduction (>6 points), and high patient satisfaction (>9/10). Radiologically, both techniques achieved excellent coronal plane alignment.

Conclusion

Both techniques are good option for performing a HTO, but it is important to remain vigilant in the sagittal plane when performing these techniques, specially the OW-HTO, to avoid undesired changes in the tibial slope.

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Tibial Slope Variation After Opening Wedge High Tibial Osteotomy While No Change in Closing Wedge Technique

Tibial Slope Variation After Opening Wedge High Tibial Osteotomy While No Change in Closing Wedge Technique

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Tibial Slope Variation After Opening Wedge High Tibial Osteotomy While No Change in Closing Wedge Technique

Tibial Slope Variation After Opening Wedge High Tibial Osteotomy While No Change in Closing Wedge Technique

Purpose

Methods

Results

Conclusion