Response to Letter to the Editor on “No Differences Identified in Transverse Plane Biomechanics Between Medial Pivot and Rotating Platform Total Knee Implant Designs.”

Papagiannis, Georgios; Roumpelakis, Ilias M.; Triantafyllou, Athanasios; Makris, Ioannis; Babis, George C.

doi:10.1016/j.arth.2016.03.055

Cited by 9 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the literature strongly indicates that accurate and thorough tracking of gait analysis techniques minimizes any possible influence of errors on data collection when measuring kinetic and kinematic parameters with such equipment [40]. Future studies combining kinematic and kinetic analysis with electromyography data [41] can help evaluate the post-THA gait patterns of OA and DDH patients and optimize specific rehabilitation protocols.…”

Section: Discussionmentioning

confidence: 99%

Post-Arthroplasty Spatiotemporal Gait Parameters in Patients with Hip Osteoarthritis or Developmental Dysplasia of the Hip: An Observational Study

Stasi,

Papagiannis,

Triantafyllou

et al. 2024

Preprint

View full text Add to dashboard Cite

Total hip arthroplasty (THA) is a preferred treatment for primary osteoarthritis (OA) or secondary due to developmental hip dysplasia (DDH). Gait analysis is considered a golden standard for evaluating post-arthroplasty walking patterns. This study compared post-THA spatiotemporal gait parameters (SGPs) between OA and DDH patients and explored correlations with demographic and clinical variables. Thirty patients (15 per group) were recorded during gait, and their SGPs were analyzed. Functionality was evaluated with the Oxford Hip Score (OHS). The OA patients were significantly older than DDH (pr< 0.51, all p< 0.05). The preoperative gait alterations associated with OA or DDH were improved to similar levels in both groups after THA. Post-arthroplasty SGPs and OHS correlations indicate limitations in certain activities. These find-ings must be correlated with kinetic gait analysis data to fully evaluate gait and functionality dif-ferences among patient groups.

show abstract

Section: Discussionmentioning

confidence: 99%

Post-Arthroplasty Spatiotemporal Gait Parameters in Patients with Hip Osteoarthritis or Developmental Dysplasia of the Hip: An Observational Study

Stasi,

Papagiannis,

Triantafyllou

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…The author postulated that 45 seconds of continuous isometric friction, repeated twice a day, four times a week, would have a significant hypoalgesic effect. Strength training with slightly heavy (isotonic) resistance in sets of 4, 6-8 repeated 3-5 times per day, weight loss, walking up stairs, breaking banknotes, running up stairs, or skipping exercises are all good options (Papagiannis GI, 2016). Tendinopathy of the knee can be treated with a six-week program of endurance exercises, including energy-saving cardio, concentric and eccentric strengthening, and plyometrics at a high intensity.…”

Section: Kneelingmentioning

confidence: 99%

KNEE extension lag

Kumar

Arora

2022

ijhs

View full text Add to dashboard Cite

In a study involving 34 patients, researchers looked at how knee extension lag correlated with other measures of injured and healthy limbs. The average flexion force was found to be greater than the average extension force in the injured extremity, and there was no difference between the means of flexion and extension force. This study also found that the extension lag was unrelated to squatting depth, extension force, flexion force, circumference at the joint line, circumference 5 and 15 centimeters cephalad to the patella pole, and active or passive knee flexion. When compared to a control group of patients with healthy rotational movements, these medians showed significant variation. Comparisons between patient groups suggest a connection between quadriceps weakness and knee extension lag, but no other factors have been found to correlate with this finding. Researchers recommend recruiting participants with extension lags greater than 30 in order to increase the likelihood of discovering such links.

show abstract

“…Especially in case of knee prosthesis, the behavior of the joint in transversal plane may represent a crucial factor, because the modern knee prosthesis are focused in stabilizing the knee and allow the most natural movements, such as rotation. 3,4 Thus the measurement of biomechanical parameters in all three planes is equally important to identify the actual behavior of the arthroplasty and contribute to a more precise design of the implant.…”

Section: Introductionmentioning

confidence: 99%

Gait analysis methodology for the measurement of biomechanical parameters in total knee arthroplasties. A literature review

Papagiannis

Triantafyllou

Roumpelakis

et al. 2018

Journal of Orthopaedics

Self Cite

View full text Add to dashboard Cite

Gait analysis using external skin markers provides scope for the study of kinematic and kinetic parameters shown on different total knee arthroplasties (TKA). Thus an appropriate methodology is of great importance for the collection and correlation of valid data. Calibration of equipment is of great importance before measurements, to assure accuracy. Force plates should be calibrated to 1080 Hz and optoelectronic cameras should use 120 Hz frequency, because of the nature of gait activity. Davis model which accurately defines the position of the markers is widely accepted and cited, for the gait analysis of TKA's. To ensure the reproducibility of the measurement, a static trial at the anatomical position must be captured. Following, all acquisitions of dynamic data must be checked for consistency in walking speed, and abnormal gait style because of fatigue or distraction. To establish the repeatability of the measurement, this procedure must be repeated at a pre-defined number of 3-5 gait cycles. Anthropometric measurements should be combined with three-dimensional marker data from the static trial to provide positions of the joint's center and define anatomical axes of total knee arthroplasty. Kinetic data should be normalized to bodyweight (BW) and percentage of BW and height depending on the study. External moments should also be calculated by using inverse dynamics and amplitude-normalized to body mass (Nm/kg). Gait analysis using external skin markers provides scope for the study of biomechanical parameters shown on different TKAs. Thus a standard gait analysis methodology when measuring TKA biomechanical parameters is necessary for the collection and correlation of accurate, adequate, valid and reproducible data. Further research should be done to clarify if the development of a specific kinematic model is appropriate for a more accurate definition of total knee implant joint center in measurements concerning 3D gait analysis.

show abstract

Response to Letter to the Editor on “No Differences Identified in Transverse Plane Biomechanics Between Medial Pivot and Rotating Platform Total Knee Implant Designs.”

Cited by 9 publications

References 0 publications

Post-Arthroplasty Spatiotemporal Gait Parameters in Patients with Hip Osteoarthritis or Developmental Dysplasia of the Hip: An Observational Study

Post-Arthroplasty Spatiotemporal Gait Parameters in Patients with Hip Osteoarthritis or Developmental Dysplasia of the Hip: An Observational Study

KNEE extension lag

Gait analysis methodology for the measurement of biomechanical parameters in total knee arthroplasties. A literature review

Contact Info

Product

Resources

About