Abstract
To investigate the clinical efficacy of open wedge high tibial osteotomy (OWHTO) in the treatment of medial compartment osteoarthritis of the knee. The authors used open OWHTO combined with TomoFix internal fixation to treat 46 cases (52 knees) with knee osteoarthritis with patella varus deformity from 2015.01 to 2017.10. HSS score and VAS score of Knee joint were used to evaluate the improvement of knee function and pain before and after surgery. The femorotibial angle (FTA), medial proximal tibial angle (MPTA), kneecap varus angle (KVA), and Weight-bearing line ratio of lower limbs (WBL) were measured by videography, which can evaluate the correction effect of postoperative knee varus. There were no happenings of internal fixation failure, delayed bone healing or non-union in these follow-up patients. At the follow-up of 3 months, 6 months, and 12 months, the HSS scores of the patients were significantly higher than those before the operation, and the difference was statistically significant (P 0.05). Imaging examination indexes showed that FTA, MPTA, KVA and WBL were improved after surgery and the varus deformity was corrected. Moreover, the difference was statistically significant (P 0.05). In general, OWHTO can relieve joint pain and improve joint function by correcting lower limb line, showing good effect on medial compartment osteoarthritis of knee joint with varus.
Highlights
As early as 1958, Jackson et al [1] reported that the osteotomy and correction of upper tibia can be used to treat knee osteoarthritis with varus
This method was improved by Coventry in 1965 and he reported that wedge osteotomy above the level of the tibial tuberosity can treat medial single compartment osteoarthritis with a certain degree of knee varus to a certain extent
The author used open wedge high tibial osteotomy (OWHTO) combined with TomoFix internal fixation to treat the medial compartment osteoarthritis of the knee joint Journal of Surgery 2019; 7(3): 57-62 and patella varus
Summary
As early as 1958, Jackson et al [1] reported that the osteotomy and correction of upper tibia can be used to treat knee osteoarthritis with varus This method was improved by Coventry in 1965 and he reported that wedge osteotomy above the level of the tibial tuberosity can treat medial single compartment osteoarthritis with a certain degree of knee varus to a certain extent. This method had achieved good long-term efficacy, so it was named High tibia osteotomy (HTO) and gradually promoted. The author used OWHTO combined with TomoFix internal fixation to treat the medial compartment osteoarthritis of the knee joint
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