Correction to: Patella–patellar tendon angle and lateral patella-tilt angle decrease patients with chondromalacia patella

Damgacı, Lale; Özer, Hamza; Duran, Semra

doi:10.1007/s00167-020-06086-2

Cited by 2 publications

(5 citation statements)

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“…The difference between the two genders was statistically significant (P=0.002), which was consistent with the studies of Lu (10) and Duran (13), that is, the positive rate of women was significantly higher than that of men. Previous researches (12)(13)(14) believe that this is closely related to the particularity of the anatomical structure of female patients. The female pelvis is generally wide, so the space between the anterior superior iliac spine is relatively large.…”

Section: Discussionmentioning

confidence: 97%

“…At present, the etiological study of CP is not clear. Most researchers tend relate the biomechanical function disorder of patellofemoral joint due to various factors, such as knee joint trauma, patellofemoral instability, cartilage dystrophy, and so on ( 6 , 12 , 14 ). The abnormal morphology of the patellofemoral joint can destroy the stability of the patellofemoral joint, so that the pressure distribution on the cartilage surface of the patellofemoral joint is not uniform, and the wear and softening of the patellar cartilage are aggravated.…”

Section: Discussionmentioning

confidence: 99%

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A study on the correlation between patellofemoral joint morphology and early patella malacia in young adults: quantitative analysis based on magnetic resonance

Kong¹,

Yu²

2023

Ann Transl Med

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Background The aim of this study was to quantitatively measure the morphology of the patellofemoral joint by magnetic resonance imaging (MRI) in young adults, to investigate the relationship between the morphology of the patellofemoral joint and chondromalacia patellae (CP), and to provide an imaging reference for early clinical diagnosis of CP. Methods A total of 57 cases of CP and 138 cases of normal knees were retrospectively collected and assigned to the CP group and control group, respectively. The morphological parameters of the patellofemoral joint were measured systematically. The statistical software SPSS 22.0 was used in correlation analysis. Logistic regression was used for univariate analysis. A P value <0.05 was defined as statistically significant. Results Wiberg index, patellar depth, and the lateral angle of the patella in the CP group were significantly lower than those in the control group (P=0.043, 0.001, 0.040, respectively). The width of the medial side of the trochlea, the ratio of the internal and external articular surfaces of the trochlea, the depth of the trochlea, and the inclination angle of the lateral trochlea in the CP group were significantly lower than those in the control group (P=0.003, 0.020, 0.000, 0.040, respectively), whereas the angle of the trochlea in the CP group was significantly higher than that in the control group (P=0.010). The lateral patellofemoral angle (LPA) and lateral patellofemoral contact width in the CP group were significantly lower than those in the control group (P=0.010, 0.010, respectively). In the CP group, with gender as a covariate, there were significant statistical differences between male and female in patellar depth, lateral patellar inclination angle, lateral trochlear inclination (LTI) angle, and lateral patellar contact surface width (P<0.05), whereas in the control group, there were significant differences in Wiberg index, patellar depth, medial trochlear width, and lateral patellofemoral contact surface width between male and female gender (P<0.05). Conclusions The prevalence of CP in women was significantly higher than that in men and the reduction of trochlea width and the patella depth is an important factor for the incidence of female CP. Morphological characteristics of the patellofemoral joint are significantly correlated with the occurrence of CP in young adults.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

A study on the correlation between patellofemoral joint morphology and early patella malacia in young adults: quantitative analysis based on magnetic resonance

Kong¹,

Yu²

2023

Ann Transl Med

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“…The value of the sTT‐TG measurement rests in both its diagnostic, and potential therapeutic uses. This is as compared to patella‐patella tendon angles which have been shown to be more acute in patients with PF chondral lesions than controls[1, 11, 18], but such an angle does not provide any target for surgical management. Additionally, this angle may change with patella height, limiting its generalizability [24].…”

Section: Discussionmentioning

confidence: 99%

“…Third, PF cartilage lesions were categorized by MRI grade, rather than arthroscopic evaluation. While MRI has been used to differentiate patients in similar studies [11], it is important to note that arthroscopic evaluation continues to represent the gold standard for cartilage pathology assessment.…”

Section: Discussionmentioning

confidence: 99%

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Posterior tibial tubercle measured by the sagittal TT-TG distance correlates with increased risk for patellofemoral chondral lesions

Kaplan

Mojica

Ortega

et al. 2022

Knee Surg Sports Traumatol Arthrosc

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Purpose To evaluate the variation in tibial tubercle sagittal alignment in patients with and without patellofemoral (PF) cartilage wear. Methods This was a single-centre, retrospective review of patients that underwent a cartilage restoration procedure for isolated PF cartilage wear from 2014 to 2020. Patients were matched in a 1:2 ratio for age, sex and BMI to partial meniscectomy patients as controls. The sagittal TT-TG (sTT-TG) distance was measured on preoperative axial T2 magnetic resonance imaging (MRI) and was deined as the distance between a point at the nadir of the trochlear cartilage and the most anterior point of the tibial tubercle. Results One hundred and forty patients (47 cartilage restoration, 94 meniscectomy) were included. Mean age, BMI, and height for the total cohort were 34.01 ± 8.7, 26.6 ± 6.4, and 173.0 ± 17.7 respectively, with 78 males (55%) and 63 females (45%). There were no signiicant diferences between groups for age, BMI or sex (n.s). The cartilage restoration group (− 2.5 mm ± 5.9) was found to have a signiicantly more posterior (negative) sTT-TG compared to the meniscectomy group (1.72 mm ± 6.7) (p < 0.001). Interrater reliability was excellent (ICC = 0.931, p < 0.001). Patients with less than − 3.4 mm sTT-TG were 2.74 times more likely to have a cartilage restoration procedure compared to those with greater than − 3.4 mm (OR 2.7, 95% CI 1.3-5.85). Patients with < − 10 mm posterior translation were 13.7× (CI 1.6-111.1) more likely to have a cartilage restoration procedure. Conclusion Patients that underwent isolated cartilage restoration procedures had a signiicantly more posterior tibial tubercle than partial meniscectomy controls based on the sagittal TT-TG. The more posterior the tubercle, the more likely the patient had a cartilage restoration procedure. Surgeons should consider the sTT-TG measurement in patients presenting with anterior knee pain, particularly patellofemoral lesions. Level of evidence III.

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Correction to: Patella–patellar tendon angle and lateral patella-tilt angle decrease patients with chondromalacia patella

Abstract: The original article can be found online.

Cited by 2 publications

References 0 publications

A study on the correlation between patellofemoral joint morphology and early patella malacia in young adults: quantitative analysis based on magnetic resonance

A study on the correlation between patellofemoral joint morphology and early patella malacia in young adults: quantitative analysis based on magnetic resonance

Posterior tibial tubercle measured by the sagittal TT-TG distance correlates with increased risk for patellofemoral chondral lesions

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