While options for operative treatment of leg axis varus malalignment in patients with medial gonarthrosis include several established procedures, such as unicompartmental knee arthroplasty (UKA), total knee arthroplasty (TKA), or high tibial osteotomy (HTO), so far there has been little focus on a less invasive option introduced more recently: the UniSpacer™ implant, a modern, self-centering, m...

Background and purpose - The long-term effects of computer-assisted surgery in total knee replacement (CAS) compared to conventionally operated knee replacement (CON) are still not clear. We compared survivorship and relative risk of revision in CAS and CON based on data from the Norwegian Arthroplasty Register. Patients and methods - We assessed primary total knee replacements without patellar...

Knee pain and dysfunction have been often associated with an ineffective pull of the patella by the vastus medialis (VM) relative to the vastus lateralis (VL), particularly in individuals with knee joint malalignment. Such changes in muscular behavior may be attributed to muscle inhibition and/or atrophy that precedes the onset of symptoms. The aim of this study was to investigate possible effe...

BACKGROUND AND PURPOSE Although discomfort during walking is a common complaint in individuals with knee osteoarthritis (OA), how an acute bout of walking affects femoral cartilage remains unclear. Current literature has suggested that frontal plane knee malalignment (ie, varus and valgus) is associated with the initiation and/or progression of knee OA. However, the association between knee ali...

We reviewed 100 cemented Endo-model rotating-hinge (Waldemar Link GMBH & Co, Hamburg, Germany) total knee replacements in 80 patients with a mean age of 70 years (56 to 85) at a mean post-operative follow-up of 11 years (7 to 15). Good or excellent results were seen in 91% of knees and survival at 15 years was 96.1%. There were two deep infections, one dislocation and one supracondylar fracture...

The number of total knee replacements is going to increase in coming decades. Hence there is a need for proper and accurate method of surgical techniques to avoid the complications such as instability and malalignment which leads to a secondary procedure. Use of Computer Navigation provides a more reliable source of intra operative measurement and corrections of deformity. Robotic and hand held...

Background Although excellent long-term clinical results have been reported for the total knee arthroplasty (TKA), 37% of patients have limited functional improvement one year after the surgery [1]. Patients with a clinical presentation of anterior knee pain could be diagnosed with patellofemoral pain syndrome (PFPS). Modified clinical classification of PFPS patients includes two main groups: w...

Total knee arthroplasty (TKA) is a satisfactory procedure regarding functional outcome and pain relief. The ever increasing number of total knee arthroplasties and expanding indications have led to a high number of revisions. The principles of revision arthroplasty are to understand the cause of failure, adequate surgical exposure, restoration of limb alignment, achieving appropriate soft tissu...

Knee osteoarthritis (OA) is the most common form of arthritis, and affects approximately one-third of the elderly population. The medial tibiofemoral compartment is most commonly involved. This is due, in part, to the ground reaction force vector passing medial to the knee joint center during gait. This distance increases with genu varus malalignment, resulting in an increased external adductio...