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[Total knee replacement following high tibial osteotomy].
1Ortopedická klinika MU, FN u sv. Anny, Brno.
Summary
High tibial osteotomy before total knee arthroplasty did not significantly impact overall knee function, despite causing mild patella infera. Functional outcomes were comparable between patients with and without prior osteotomy.
Area of Science:
- Orthopedic surgery
- Biomechanical engineering
Context:
- Total knee arthroplasty (TKA) is a common procedure for end-stage knee osteoarthritis.
- High tibial osteotomy (HTO) is sometimes performed prior to TKA to correct deformities.
- The impact of HTO on TKA outcomes requires further investigation.
Purpose:
- To evaluate the effect of anatomical changes from high tibial osteotomy (HTO) on knee function after total knee arthroplasty (TKA).
Summary:
- This study compared functional outcomes and patellar height in 50 TKA patients with prior HTO (Group II) and 50 TKA patients without prior HTO (Group I).
- Knee function was assessed using the Knee Society Clinical Rating System (KSS) and Functional System (FS) scores.
- Patellar height was measured using the Insall-Salvati index; patella infera was noted in 42% of Group II patients.
Impact:
- Findings indicate that HTO does not significantly alter TKA functional outcomes, as evidenced by similar KSS and FS scores between groups.
- A mild degree of patella infera was observed in patients with prior HTO, suggesting a minor anatomical consequence.
- This research provides valuable insights for orthopedic surgeons regarding the functional implications of performing TKA after HTO.