The Short-term Follow-up Results of Open Wedge High Tibial Osteotomy with Using an Aescula Open Wedge Plate and an Allogenic Bone Graft: The Minimum 1-Year Follow-up Results

Abstract

BackgroundThis study examined the results of open wedge high tibial osteotomy with using an Aescula open wedge plate and an allogenic bone graft as a surgical technique for the patients who suffer from osteoarthritis of the knee with a genu varum deformity.MethodsFrom March 2007 to August 2007, 33 patients (37 cases) with osteoarthritis of the knee and a genu varum deformity underwent a high tibial osteotomy with using an Aescula open wedge plate and an allogenic bone graft. The patients were followed up for more than 1 year. Before and after surgery, the correction angle of the genu varum was measured by the lower extremity scannogram and the posterior tibial slope, the joint space distance and the time to bone union were evaluated. The functional factors were evaluated using the Knee Society Score.ResultsThe average knee score and function score improved from 52.19 ± 11.82 to 92.49 ± 5.10 and 52.84 ± 6.23 to 89.05 ± 5.53, respectively (p < 0.001). According to the lower extremity scannogram, the mean preoperative varus angle was -1.86 ± 2.76°, and the average correction angle at the last follow-up was 10.93 ± 2.50° (p < 0.001). The tibial posterior slope before surgery and at the last follow-up were 8.20 ± 1.80° and 8.04 ± 1.30°, respectively (p = 0.437). The joint space distance increased from 4.05 ± 1.30 mm to 4.83 ± 1.33 mm (p < 0.001). The average time to complete bone union was 12.69 ± 1.5 weeks.ConclusionsAn open wedge high tibial osteotomy using an Aescula open wedge plate and an allogeneic bone graft to treat osteoarthritis of the knee with a genu varum deformity showed good results for the precision of the correction angle, the time to bone union and the functional improvement.

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“…[19] However, in open wedge method, performed in the study of Lee et al [20] and Mobarakeh et al, [21] there is a significant difference in Insall-Salvati index before and after the surgery, and the open wedge osteotomy method had a significant impact on patellar position, which is different from this study and numerous studies mentioned before.…”

“…The dome-shaped proximal tibial osteotomy is a conventional and traditional method for the treatment of osteoarthritis and genu varum deformity. [5,7] Dome-shaped osteotomy is performed when a large degree of correction is needed (18)(19)(20) mm open or closed, or more than 20° of angular correction). In severe varus deformity cases or Blount's disease, this method is used.…”

High Tibial Osteotomy in the Treatment of Patients With Stage Ii–iii of Knee Osteoarthritis. Immediate Results and Factors Influencing the Outcome

“…Так, Su Chan Lee и соавт. [16] выпол-нили ОУ ВТО 37 КС у 33 пациентов и через год получили улучшение объективного счета КС с 52,19±11,82 до 92,49±5,10 балла, а функционального счета -с 52,84±6,23 до 89,05±5,53 балла. А M. Asik и соавт.…”

Utilizzo di un nanocomposto costituito da Mg-idrossiapatite e matrice ossea demineralizzata nelle osteotomie tibiali: studio prospettico randomizzato

“…1, 2). La correzione minima è di 10 mm [21]. La stabilizzazione dell'osteotomia viene effettuata con una placca in titanio, fissata con due viti prossimali e due viti distali all'area dell'innesto.…”