Osteoarthritis of the patella, lateral femoral condyle and posterior medial femoral condyle correlate with range of motion

Abstract

For clinical relevance, soft tissue release and osteophyte resection around the patella, lateral femoral condyle and posterior medial femoral condyle might be indicated to obtain a higher degree of knee flexion angle.

Clinical Phenotype Classifications Based on Static Varus Alignment and Varus Thrust in Japanese Patients With Medial Knee Osteoarthritis

“…In previous studies, more than 80% of the included patients were overweight or obese . In addition, female patients in our study were less likely to have knee pain during walking (Table ), which conflicts with the observations in a previous study in a large Japanese cohort . Therefore, the results of the present study might be community specific; other data sets will be needed to replicate our findings.…”

“…Fourth, we could not evaluate the disease severity of the tibiofemoral joints in the contralateral (unaffected) limb; whether bilateral knee OA affects the relative impact of static varus alignment and varus thrust on the clinical outcomes, particularly knee pain during gait, could not be determined. We found that restricted knee flexion ROM of the unaffected knee in the static 1 dynamic varus group possibly indicated the presence of knee OA in the unaffected knee in this group, due to the association between osteophyte reaction and restriction of knee flexion ROM (43). Muraki et al showed that bilateral knee OA is common in the Japanese population (44), accounting for ;50% of cases of knee OA with a K/L grade of $2.…”

Coexisting lateral tibiofemoral osteoarthritis is associated with worse knee pain in patients with mild medial osteoarthritis

“…Osteophyte in the lateral compartment and other knee joint compartments is suggested to be an indicator of lower knee flexion ROM 30,31 . However, knee ROM did not significantly differ between knees with and without lateral OA, after adjustment for age, sex, BMI, and presence of PFOA.…”

Joint Motion Quality in Chondromalacia Progression Assessed by Vibroacoustic Signal Analysis

“…Unfortunately, no patient with stage IV CMP was included in our study. Recruited patients are not able to perform a flexion/extension task with specified velocity, probably as a result of functional disturbances related to presence of both CMP with subchondral bone disclosure (stage IV) and knee osteoarthritis (with articular cartilage ulcerations, bone exposure and presence of osteophytes), which together lead to narrowing of the joint space and biomechanical changes [2,27]. This phenomenon is especially observed for PFJ, which is the most likely to be affected by chondral pathology.…”