Prevalence and clinical significance of chondromalacia isolated to the anterior margin of the lateral femoral condyle as a component of patellofemoral disease: observations at MR imaging

Chan, Victor; Moran, Dermot; Mwangi, Irene; Eustace, Stephen

doi:10.1007/s00256-013-1640-5

Cited by 12 publications

(10 citation statements)

References 42 publications

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“…According to Chan et al. (19), a small percentage of patients with anterior knee pain have chondromalacia isolated to the anterior margin of the lateral femoral condyle. This was associated with a shallower femoral sulcus angle.…”

Section: Discussionmentioning

confidence: 99%

The relationship between early-onset chondromalacia and the position of the patella

Özel

2019

Acta Radiol

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Background There are many underlying accelerator factors for chondromalacia and one of the well-known factors is patellar malalignment. Purpose To evaluate the relationship between early-onset chondromalacia and patellar position; and, second, to evaluate the value of patellar malalignment criteria. Material and Methods Patients aged 18–40 years with advanced chondromalacia were included. For comparison, a control group was defined with the same number of individuals of the same mean age. The magnetic resonance imaging (MRI) sagittal view with the greatest patellar length was used to obtain the patellar height measurement with the Insall-Salvati index. For the remaining three indices—modified Insall-Salvati, Caton-Deschamps, and Blackburne-Pell—a sagittal view with the greatest patellar articular surface was used. Discordance was defined as contradiction with the measured index and the other three indices. Results Both patella alta and baja were found to be predisposing factors for chondromalacia. Modified Insall-Salvati index was the most concordant measurement to define patella alta. Conclusion Both patella alta and patella baja were found to predispose to chondromalacia. Patella baja is rare, which may explain why it is not often mentioned as a predisposing factor. The modified Insall-Salvati index ratio was the best patella alta indicator that showed chondral status, more than patellar placement, and was more concordant with the other indices. Blackburne-Pell had the second highest number and ratio of discordance. BP cannot be optimally calculated because deciding the location of the tibial plateau seems to be problematic since it is a three-dimensional and complicated structure.

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Section: Discussionmentioning

confidence: 99%

The relationship between early-onset chondromalacia and the position of the patella

Özel

2019

Acta Radiol

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“…CP is the consequence of multiple factors including trauma to the knee, vascular insufficiency within the subchondral bone (5, 7), and misalignment of the extensor mechanism of the knee which could be caused by patella alta and infera, genu valgum, external tibial torsion, increased quadriceps (Q) angle, and deformities of the femoral condyle (8, 9). In order to investigate the etiology of CP and provide the theory basics for the early diagnosis and treatment of CP, some studies have evaluated the association of morphological features of the patellofemoral joint, such as lateral patellar tilt angle (LPTA), sulcus angle, trochlear depth, patella angle, lateral and medial patellar facet lengths, lateral-to-medial facet length ratio, interfacet angle, and anterior margin of the lateral femoral condyle, with CP (5, 10, 11). Also, in patients with patellofemoral joint osteoarthritis, patellar alignment, such as patellar height, sulcus angle and depth, lateral patellar displacement, and LPTA, was associated with cartilage lesions (12, 13).…”

Section: Introductionmentioning

confidence: 99%

Abnormal Patella Height Based on Insall-Salvati Ratio and its Correlation with Patellar Cartilage Lesions: An Extremity-Dedicated Low-Field Magnetic Resonance Imaging Analysis of 1703 Chinese Cases

Yang

Chen

et al. 2016

Scand J Surg

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“…For example, Endo et al [12] reported, there was not a statistically significant correlation between patellar chondromalacia and different measurements of patellar facet length and the inter-facet angle. Conversely, Thakkar et al [13] and Chan et al [14] concluded quantitative trochlear parameters could be reliably calculated on MRI. The literature on quantitative imaging is usually related to the patellar malalignment [15][16][17][18] .…”

Section: Discussionmentioning

confidence: 99%

Evaluation of correlation between clinical and magnetic resonance imaging findings of patellar chondromalacia

Özel¹

2020

Haydarpasa Numune Med J

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Introduction: To evaluate the correlation between clinical appearance and magnetic resonance imaging features of chondromalacia that can determine the knee magnetic resonance indication and to define a novel chondral status indicator. Methods: This study was performed between May 2017 and February 2019. If the knee pain was suggestive for the presence of chondromalacia clinically, then VAS and Kujala AKPS were noted. For MRI evaluation, a patellar cartilage score (PCS) was defined to evaluate the mean patellar thickness (MPT) and MRI grading together. Results: Advanced chondromalacia was more common among females (p<0.01). There was a positive correlation between age and MRI grading and the correlation coefficient was calculated to be 0.56. The highest correlation coefficient obtained with PCS in comparing PCS, MCT (mean cartilage thickness) and MRI grading for the clinical relationship. To define advanced chondromalacia with VAS and AKPS cutoff values calculated to be 3 and 80 in ROC analysis. AKPS was a superior clinical indicator for advanced chondromalacia compared with VAS. The other demographic findings, such as age and gender relations, were concordant with the literature. Discussion and Conclusion: A potentially better method was defined to combine VAS with functional measurements, such as AKPS, to determine a knee status may be indicative of MRI evaluation. As a novel perspective, PCS was the best indicator of the chondral clinical status that consists of both the mean patellar thickness and magnetic resonance grading.

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Prevalence and clinical significance of chondromalacia isolated to the anterior margin of the lateral femoral condyle as a component of patellofemoral disease: observations at MR imaging

Abstract: A small percentage of patients with anterior knee pain have chondromalacia isolated to the anterior margin of the lateral femoral condyle. This was associated with a shallower femoral sulcus angle.

Cited by 12 publications

References 42 publications

The relationship between early-onset chondromalacia and the position of the patella

The relationship between early-onset chondromalacia and the position of the patella

Abnormal Patella Height Based on Insall-Salvati Ratio and its Correlation with Patellar Cartilage Lesions: An Extremity-Dedicated Low-Field Magnetic Resonance Imaging Analysis of 1703 Chinese Cases

Evaluation of correlation between clinical and magnetic resonance imaging findings of patellar chondromalacia

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