Background: High tibial osteotomy (HTO) is an established joint-preserving treatment for medial knee osteoarthritis, but total knee arthroplasty (TKA) may be required if the disease progresses. This pilot study evaluates the radiological and functional outcomes of simultaneous limb axis correction using reverse HTO (rHTO) during TKA compared to a primary TKA control group without previous HTO. Methods: In this retrospective matched-pair study, nine patients with previous valgus HTO underwent varus correction via rHTO combined with TKA using cruciate-retaining implants. Outcomes were compared to a primary TKA control group. Radiographic parameters (MPTA, mLDFA, aHKA, JLO) and clinical scores (Oxford Knee Score, LEFS, KOOS, TAS, FIPS) were assessed pre- and postoperatively. Statistical significance was set at p 0.05). Conclusions: This pilot study demonstrates the technical feasibility of single-stage rHTO and TKA, showing encouraging descriptive clinical and radiographic profiles in this small, highly specific cohort. Given the exploratory nature of this study, larger trials are required to definitively evaluate potential clinical differences.
Jörgens et al. (Wed,) studied this question.
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