Quantification of knee vibroarthrographic signal irregularity associated with patellofemoral joint cartilage pathology based on entropy and envelope amplitude measures

2016 ◽  
Vol 130 ◽  
pp. 1-12 ◽  
Author(s):  
Yunfeng Wu ◽  
Pinnan Chen ◽  
Xin Luo ◽  
Hui Huang ◽  
Lifang Liao ◽  
...  
Keyword(s):  
Patellofemoral Joint ◽  
Joint Cartilage ◽  
Envelope Amplitude

scholarly journals Associations between patellofemoral joint cartilage T 1ρ and T 2 and knee flexion moment and impulse during gait in individuals with and without patellofemoral joint osteoarthritis

2016 ◽  
Vol 24 (9) ◽  
pp. 1554-1564 ◽  
Author(s):  
H.-L. Teng ◽  
N.E. Calixto ◽  
T.D. MacLeod ◽  
L. Nardo ◽  
T.M. Link ◽  
...  
Keyword(s):  
Knee Flexion ◽  
Patellofemoral Joint ◽  
Joint Cartilage ◽  
Flexion Moment

Kneeling as a risk factor of patellofemoral joint cartilage damage worsening: an exploratory analysis on the Osteoarthritis Initiative

2020 ◽  
Author(s):  
Arya Haj-Mirzaian ◽  
Bahram Mohajer ◽  
Ali Guermazi ◽  
Frank W. Roemer ◽  
Bashir Zikria ◽  
...  
Keyword(s):  
Risk Factor ◽  
Patellofemoral Joint ◽  
Cartilage Damage ◽  
Exploratory Analysis ◽  
Joint Cartilage ◽  
Osteoarthritis Initiative

A Modeling Framework to Estimate Patellofemoral Joint Cartilage Stress In Vivo

2005 ◽  
Vol 37 (11) ◽  
pp. 1924-1930 ◽  
Author(s):  
Thor F. Besier ◽  
Garry E. Gold ◽  
Gary S. Beaupr?? ◽  
Scott L. Delp
Keyword(s):  
Patellofemoral Joint ◽  
Joint Cartilage ◽  
Modeling Framework

scholarly journals Dynamic and static mechanical compression affects akt phosphorylation in porcine patellofemoral joint cartilage

2008 ◽  
Vol 26 (5) ◽  
pp. 616-623 ◽  
Author(s):  
Anja Niehoff ◽  
Michael Offermann ◽  
Jens Dargel ◽  
Annette Schmidt ◽  
Gert-Peter Brüggemann ◽  
...  
Keyword(s):  
Patellofemoral Joint ◽  
Mechanical Compression ◽  
Joint Cartilage ◽  
Akt Phosphorylation ◽  
Static Mechanical

Patellofemoral joint cartilage restoration with particulated juvenile allograft in patients under 21 years old

The Knee ◽  
2021 ◽  
Author(s):  
Brody J. Dawkins ◽  
Beth E. Shubin Stein ◽  
Douglas N. Mintz ◽  
Peter D. Fabricant ◽  
Andreas H. Gomoll ◽  
...  
Keyword(s):  
Patellofemoral Joint ◽  
Joint Cartilage ◽  
Cartilage Restoration

scholarly journals The association between hamstring strength and hamstring-quadriceps strength ratio with patellofemoral joint cartilage damage: the MOST study

2012 ◽  
Vol 20 ◽  
pp. S156-S157
Author(s):  
J. Stefanik ◽  
J. Niu ◽  
N. Segal ◽  
C. Lewis ◽  
M. Nevitt ◽  
...  
Keyword(s):  
Patellofemoral Joint ◽  
Cartilage Damage ◽  
Quadriceps Strength ◽  
Strength Ratio ◽  
Joint Cartilage

scholarly journals PATELLOFEMORAL JOINT CARTILAGE RESTORATION WITH PARTICULATED JUVENILE ALLOGRAFT IN PATIENTS UNDER 21 YEARS OLD: POSTOPERATIVE MRI ANALYSIS AND RETURN TO SPORT RATES

2021 ◽  
Vol 9 (7_suppl3) ◽  
pp. 2325967121S0013
Author(s):  
Brody J. Dawkins ◽  
Beth E. Shubin Stein ◽  
Douglas N. Mintz ◽  
Peter D. Fabricant ◽  
Andreas H. Gomoll ◽  
...  
Keyword(s):  
Patellofemoral Joint ◽  
Tertiary Care ◽  
Sport Activity ◽  
Return To Sport ◽  
Cartilage Defects ◽  
Joint Cartilage ◽  
Postoperative Mri ◽  
Chondral Defects ◽  
Cartilage Restoration

Background: Patellofemoral joint cartilage defects are difficult to treat due to their unique thickness and topography. Numerous cartilage restoration techniques are available to surgeons treating articular cartilage defects. However, patellofemoral joint restoration historically produces worse outcomes than tibiofemoral joint restoration. One cell-based option is particulated juvenile allograft cartilage (PJAC), though literature regarding the efficacy of this treatment is sparse, especially in patients under the age of 21 years. Hypothesis/ Purpose: The aim of this study is to investigate postoperative outcomes of PJAC for patellofemoral chondral defects using MRI and return to sport rates in this active, high-demand patient population. Methods: Patients at an urban tertiary care musculoskeletal institution who underwent PJAC for patellofemoral joint cartilage restoration were identified through records review. Patients 21 years old or younger with minimum clinical follow-up of 1 year and postoperative MRI at a minimum of 6 months after surgery were included. Cartilage restoration was assessed by MRI using the International Cartilage Repair Society’s standardized system. Sport activity was collected from medical records. Results: Thirty-six knees in 34 patients with a mean age of 16.1 ± 3.1 years old (range 10—21 years old) were analyzed. Mean follow-up was 32.1 months. Defects were located on the patella in 25 knees, and trochlea in 11 knees (Figure 1). There were no bipolar lesions in the cohort. Mean defect size was 2.47 cm2. Twenty-four knees (66.7%) were graded either ‘normal’ or ‘nearly normal’, and 28 knees (77.8%) had greater than 50% of the defect filled on follow-up imaging. Return to sport rates among patients who participated in a sport preoperatively was 100%. Conclusion: Restoration of patellofemoral chondral defects in young patients with particulated juvenile allograft can be performed with satisfactory short-term efficacy, excellent postoperative MRI appearance, and very high rates of return to sport. Tables/Figures: [Figure: see text]

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