![]() Jung WH, Takeuchi R, Chun CW, Lee JS, Ha JH, Kim JH et al (2014) Second-look arthroscopic assessment of cartilage regeneration after medial opening-wedge high tibial osteotomy. Knee Surg Sports Traumatol Arthrosc 21(1):170–180Īkamatsu Y, Koshino T, Saito T, Wada J (1997) Changes in osteosclerosis of the osteoarthritic knee after high tibial osteotomy. Joints 4(01):006–011įloerkemeier S, Staubli AE, Schroeter S, Goldhahn S, Lobenhoffer P (2013) Outcome after high tibial open-wedge osteotomy: a retrospective evaluation of 533 patients. ![]() Pipino G, Indelli PF, Tigani D, Maffei G, Vaccarisi D (2016) Opening-wedge high tibial osteotomy: a seven-to twelve-year study. Pfahler M, Lutz C, Anetzberger H, Maier M, Hausdorf J, Pellengahr C et al (2003) Long-term results of high tibial osteotomy for medial osteoarthritis of the knee. However, in patients with PFOA, and when attempting higher degree of correction through AMHTO, the possibility of worsening of symptoms due to change in PH must be considered. There is no significant difference in the functional outcomes between the groups. The study confirmed our hypothesis that descending HTO caused less alteration in the patella height compared to ascending HTO. There was no significant difference between the functional outcomes of the two groups at 9-month follow-up. There was a significant improvement in functional outcomes between baseline and 9-month follow-up in both groups. In the AMHTO group, a statistically significant decrease in PH from preoperative 1.03 ± 0.77 to 0.84 ± 0.12 was noted ( P = 0.003). A significant difference in preoperative and postoperative CDI of 0.93 ± 0.45 and 0.83 ± 0.27, respectively, was noted ( P = 0.023). There was no baseline difference in the demographic variables or functional scores between the two groups. Thirty-four (58%) patients received AMHTO, and 24 (42%) received DMHTO. Resultsįifty-eight patients were included in the study. The osteotomy union was checked with serial X-rays every 6 weeks till a satisfactory union was achieved. The functional outcomes were measured using the Oxford Knee Score (OKS), Lysholm Knee Score (LKS), and Tegner Activity Scale (TAS). Pre- and postoperative radiological measurements include the Caton–Deschamps index (CDI), the mechanical axis deviation (MAD), and the posterior tibial slope. Patients with medial compartment osteoarthritis, varus alignment, and complete pre- and postoperative lateral and full-length anteroposterior radiographs were included. Material and methodsĪ retrospective study was conducted between February 2018 and July 2021. This study aims to compare the effect of ascending (AMHTO) and descending medial opening wedge HTO (DMHTO) on patella height, posterior tibial slope and functional outcomes. However, this is associated with alterations in the patellar height (PH) and tibial slope (TS). High tibial osteotomy (HTO) is a popular joint-preserving option for medial compartmental osteoarthritis.
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