Pain sensitization and degenerative changes are associated with aberrant plantar loading in patients with painful knee osteoarthritis

Abstract

This study shows that mean maximum plantar foot force distribution in patients with painful knee OA is associated with specific pain mechanisms, function, radiological findings, and pain intensity.

Identification of Walking Strategies of People With Osteoarthritis of the Knee Using Insole Pressure Sensors

“…The inter-sensor differences are maximized when subtracting times for sensors 3 and 4. This result is aligned with the results in [23] in which the medial forefoot was found to better correlate with knee pain (corresponding to sensors 3 and 4 in Figure 1). In terms of pressure amplitudes, sensors 3 and 4 also show the biggest distance between groups.…”

“…Current evidence suggests that pain in the knee affects walking and that using wearable sensors such as pressure insoles can be beneficial to detect pain [23]. It is also accepted that based on automatically assessed data from sensors, personalized feedback can be generated to help the user in their rehabilitation process [22].…”

“…Previous studies such as [23] have shown that there are correlations between the perceived knee pain and abnormal plantar loadings (where medial forefoot and lateral hindfoot applied plantar forces have shown positive and negative correlations with knee pain). The study presented in this paper focuses on further analyzing the time patterns of the pressure distributions on selected parts of the foot and is aimed at complementing the results found in previous studies for mild knee pain in clinically diagnose OA patients in order to pave the way for building self-managed rehabilitation tools based on automatic computed feedback.…”

“…The authors show that the plantar loading force distribution of the foot was determined and correlated to degenerative knee changes, function, pain intensity, and pain sensitization. The study constitutes a relevant reference for the research we have conducted in this paper in which we have extended the analysis to other pressure related features apart from maximum forces as presented in [23]. The authors in [24] presented a systematic review aimed to identify pertinent methodologies and characteristics measured using plantar pressure devices, and to summarise their associations with running-related injury (RRI).…”

“…The authors in [22] presented a proof of concept study using augmented auditory feedback from a pressure detecting insole to reduce the knee adduction moment. The work in [23] presents a study focused on the biomechanical implications of knee osteoarthritis (OA) and the association with pain. The authors show that the plantar loading force distribution of the foot was determined and correlated to degenerative knee changes, function, pain intensity, and pain sensitization.…”