Article
Orthopedics
Miho J. Tanaka, Zachary L. LaPorte, Nicholas P. J. Perry, Maria Velasquez V. Hammerle, Varun Nukala, Fang Liu
Summary: This study aimed to describe measurements of trochlear length on magnetic resonance imaging in patients with and without patellar instability and correlate trochlear length with measurements of trochlear dysplasia. The results showed that in knees with patellar instability, the central trochlea extended more proximally than in control knees, and this increase in length correlated with severity of trochlear dysplasia.
ORTHOPAEDIC JOURNAL OF SPORTS MEDICINE
(2023)
Article
Orthopedics
Filippo Migliorini, Marco Pilone, Jorg Eschweiler, Emanuela Marsilio, Frank Hildebrand, Nicola Maffulli
Summary: This study analyzed 175 patients who underwent MRI after acute primary patellar dislocation and found that 92% of patients experienced MPFL damage, with chondral damage at the patellar crest being the most common.
ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY
(2022)
Article
Chemistry, Multidisciplinary
Elisa Giacomina Pandini, Pierluigi Pironti, Davide Maria Maggioni, Lorenzo Impieri, Cristiana Balbino, Nicola Manta, Marco Vigano, Laura Mangiavini, Roberto D'Anchise
Summary: The study evaluates the reliability and reproducibility of the CDI in patellar height assessment, showing it to be reliable and reproducible. It demonstrates the valuable role of CDI in pre-surgical planning for patellar stabilization surgery.
APPLIED SCIENCES-BASEL
(2022)
Article
Critical Care Medicine
Lei Zheng, Xiao-lin Si, Meng Zhang, Guang-ying Zhang
Summary: For patients with acute first-time lateral patellar dislocation (LPD), normal femoral trochlea, normal TT-TG distance, and skeletal maturity are independent risk factors for the incidence of acute articular cartilage lesions of the patella, while normal femoral trochlea is an independent risk factor for the incidence of acute articular cartilage lesions of the lateral femoral condyle.
INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED
(2022)
Article
Orthopedics
Xiaobo Chen, Kehan Li, Luqi Wang, Fei Wang
Summary: This study compared the effectiveness of femoral anteversion angle and femoral trochlear axial orientation in predicting patellar instability, and found that femoral trochlear axial orientation performed better in predicting patellar instability.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2023)
Article
Orthopedics
Guido Wierer, Nicole Krabb, Peter Kaiser, Reinhold Ortmaier, Sebastian Schutzenberger, Michael Schlumberger, Bernd Hiller, Florian Ingruber, Vinzenz Smekal, Rene Attal, Gerd Seitlinger
Summary: This study investigates a multivariate model to predict the risk of recurrent lateral patellar dislocation (LPD). It identifies young age and trochlear dysplasia as major risk factors for early recurrence and proposes a patellar instability probability calculator based on these findings.
AMERICAN JOURNAL OF SPORTS MEDICINE
(2022)
Article
Orthopedics
Nadim Kheir, Giuseppe Salvatore, Alessandra Berton, Alexander Orsi, Jonathan Egan, Amin Mohamadi, Joseph P. DeAngelis, Arun J. Ramappa, Umile Giuseppe Longo, Vincenzo Denaro, Ara Nazarian
Summary: This study used a finite element model to analyze the effect of lateral retinaculum release following MPFL reconstruction on the patellofemoral joint. The results showed that concomitant lateral retinaculum release resulted in decreased contact pressure and area, as well as increased lateral patellar displacement, which may increase the risk of patellar instability.
BMC MUSCULOSKELETAL DISORDERS
(2022)
Article
Orthopedics
Ahmad Essa, Dror Lindner, Salah Khatib, Ron Gilat, Nogah Shabshin, Eran Tamir, Gabriel Agar, Yiftah Beer
Summary: The study evaluated the reliability of patellar instability ratios compared to TT-TG distance alone for assessing patellar instability. The results showed that patellar instability ratios are more reliable than TT-TG distance alone. Patellar instability ratios have higher diagnostic reliability, sensitivity, specificity, and also show good reliability between raters.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2022)
Article
Critical Care Medicine
Lei Zheng, Hong-yu Ding, Yan Feng, Bai-sheng Sun, Ling-ling Zhu, Guang-ying Zhang
Summary: The study revealed that males are more likely to experience complete MPFL tear and articular cartilage lesion of patella after acute lateral patellar dislocation. Additionally, male adults are predisposed to VMO injury compared to female adults.
INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED
(2021)
Article
Orthopedics
Xufeng Jiao, Guanglei Cao, Jiangpeng Wu, Zheng Li, Shuai An, Jiang Huang
Summary: This study compared the accuracy and screening value of valgus stress radiograph and MRI in evaluating the quality of lateral cartilage and selecting suitable patients for medial unicompartmental knee arthroplasty (UKA). The results showed that MRI had higher sensitivity, specificity, accuracy, positive predictive value, and negative predictive value in diagnosing lateral weight-bearing cartilage injuries compared to valgus stress radiograph. Therefore, MRI can be considered as a reliable tool for selecting suitable UKA patients.
BMC MUSCULOSKELETAL DISORDERS
(2023)
Article
Orthopedics
John J. Elias, Sayed C. Rezvanifar, Jason L. Koh
Summary: Groove-deepening trochleoplasty significantly decreases lateral patellar tracking, reducing the risk of patellar dislocations, but can also increase patellofemoral contact pressures. Postoperatively, there is a decrease in contact area and an increase in contact pressures at various flexion angles of the knee, indicating altered patellofemoral congruity.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2022)
Article
Orthopedics
Maozheng Wei, Huijun Kang, Kuo Hao, Chongyi Fan, Shilun Li, Xingkai Wang, Fei Wang
Summary: This study aimed to explore the changes in the T/F ratio in patients with patellar instability and its correlation with the morphology of the patellofemoral joint and extensor moment arm. The results showed that patients with patellar instability had a larger lower limb length ratio, and the change in lower limb length ratio was correlated with patellar height.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2023)
Article
Orthopedics
Daphne Ling, Jacqueline M. Brady, Elizabeth Arendt, Marc Tompkins, Julie Agel, Marie Askenberger, Peter Balcarek, Shital Parikh, Beth E. Shubin Stein
Summary: The study developed a multivariable model to identify patients at higher risk for recurrent patellar dislocation, with factors such as age, contralateral dislocation history, skeletal immaturity, lateral patellar tilt, TT-TG distance, Insall-Salvati ratio, and trochlear dysplasia being important predictors. The model had an overall AUC of 71% and could potentially guide early operative treatment for high-risk patients. Further validation in prospective cohorts is needed before clinical use.
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME
(2021)
Article
Veterinary Sciences
A. M. Abu-Seida, A. A. Shamaa
Summary: This report describes the surgical treatment of congenital lateral patellar luxation in a 6-month-old female donkey foal. The foal was treated surgically using recession trochleoplasty and imbrication of the medial joint capsule, resulting in a successful improvement of lameness.
EQUINE VETERINARY EDUCATION
(2022)
Article
Orthopedics
Ke Li, Xiaoqing Zheng, Jia Li, Rebecca A. Seeley, Vincent Marot, Jerome Murgier, Xi Liang, Wei Huang, Etienne Cavaignac
Summary: Increased LFCR was found to be associated with a greater risk of ALC injury in non-contact ACL ruptured patients, and the correlation between increased LFCR and ACL injury risk was confirmed in an Asian population. The study suggests that patients undergoing ACL reconstruction with increased LFCR may benefit from additional extra-articular tenodesis.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2021)
