Article
Multidisciplinary Sciences
Hiroyuki Seki, Naomichi Ogihara, Tetsuro Kokubo, Takeo Nagura
Summary: The study quantified and visualized degenerative patterns of distal tibia and fibula in ankle osteoarthritis using CT images of 33 patients. Surface depression and elevation were observed in OA patients, correlating with similar degenerative changes on the opposite side of the ankle joint. These findings provide valuable insight into the development and treatment of ankle OA.
SCIENTIFIC REPORTS
(2021)
Article
Orthopedics
Megan L. Campbell, Amy L. Lenz, Andrew C. Peterson, Graham J. DeKeyser, Justin M. Haller, Dillon C. O'Neill
Summary: This study evaluates the access to the talar dome through dual approaches, mPM and ATL. The results show that these approaches provide access to over 70% of the talar dome surface, and the order of approach does not significantly affect the exposure. This method may promote soft tissue-only treatment strategies for talar body fractures.
FOOT & ANKLE INTERNATIONAL
(2022)
Article
Orthopedics
Kurtis D. Carlock, Eli W. Bunzel, L. Henry Goodnough, Michael F. Githens
Summary: Posteromedial talar body fractures, a rare type of talus fracture, require surgical fixation to minimize the risk of instability and post-traumatic osteoarthritis. This video presents the technique and methods of operative fixation, and summarizes the outcomes of surgical and nonoperative treatments.
JOURNAL OF ORTHOPAEDIC TRAUMA
(2022)
Article
Orthopedics
Yongqing Yan, Hao Lu, Jingyu Zhang, Xiao Yu, Yubo Liu, Guangxiang Chen, Hailin Xu, Renjie Xu
Summary: This study investigated the relationship between the tibia and talus in anterior ankle impingement and found that the tibial coverage is higher in patients with anterior ankle impingement. This result provides valuable information for the diagnosis of anterior ankle impingement.
INTERNATIONAL ORTHOPAEDICS
(2023)
Article
Orthopedics
M. Ruehling, S. M. Kirschbaum, C. Perka, F. Graef
Summary: About 25% of patients developed ankle pain after TKA. Standing radiographs of the ankle and a gait analysis could help detect malaligned TT or pathological gait in patients complaining about ankle symptoms after TKA.
BONE & JOINT JOURNAL
(2023)
Article
Multidisciplinary Sciences
Kohei Nishitani, Shinichi Kuriyama, Shinichiro Nakamura, Young Dong Song, Yugo Morita, Hiromu Ito, Shuichi Matsuda
Summary: This study investigates the biomechanical effect of excessive flexion of the femoral component in total knee arthroplasty (TKA). The results show that excessive flexion leads to abnormal kinematics and increased contact/ligament forces. Avoiding excessive flexion and maintaining mild flexion of the femoral component would provide better kinematics and biomechanical effects in TKA.
SCIENTIFIC REPORTS
(2023)
Article
Orthopedics
David J. Ciufo, Erin A. Baker, Corinn K. Gehrke, Zachary M. Vaupel, Paul T. Fortin
Summary: This study evaluates the rotational profile of the distal tibia in arthritic ankles and its relationship with talus morphology, radiographic foot-type, and tibiotalar tilt. The findings reveal significant correlations between tibial torsion and various anatomical factors, providing important information on the development of foot and ankle deformity and pathology.
FOOT AND ANKLE SURGERY
(2022)
Article
Biophysics
Paige Paulus, Tom Gale, Joshua Setliff, Tetsuya Yamamoto, Shumeng Yang, Jessica Brown, Maria Munsch, Macalus Hogan, William Anderst
Summary: The goal of this study was to investigate the impact of foot type and activity level on ankle and hindfoot motion. The results showed that activity and phase of gait had significant effects on the motion and position of the ankle and hindfoot. This has important implications for the design of total ankle replacements and musculoskeletal models.
JOURNAL OF BIOMECHANICS
(2023)
Article
Optics
K. Pande, J. J. Donatelli, D. Y. Parkinson, H. Yan, J. A. Sethian
Summary: In this paper, an algorithm for marker-free, fully automated, and accurately aligned and reconstructed X-ray tomography data is proposed. The algorithm solves the tomographic reconstruction jointly with projection data alignment using a rigid-body deformation model. The method is demonstrated to be robust and efficient in recovering relatively large alignment errors without prior knowledge of low resolution approximation of the 3D structure or alignment parameters.
Article
Orthopedics
Lars-Rene Tuecking, Peter Savov, Mats Zander, Dragan Jeremic, Henning Windhagen, Max Ettinger
Summary: The purpose of this study was to evaluate the differences in alignment parameters between kinematic alignment (KA) and functional alignment (FA) techniques, with a focus on the femoral joint line. The results showed that both techniques had similar accuracy in reconstructing the femoral joint line, but FA techniques were more effective in correcting the medial proximal tibial angle and the lateral femoral joint line.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2023)
Article
Orthopedics
Gavin W. Clark, Richard A. Steer, Ramzan N. Khan, Dermot M. Collopy, David Wood
Summary: This study compared the outcomes of functional alignment in total knee arthroplasty (TKA) using mechanical alignment plan (FA(m)) and kinematic alignment plan (FA(k)) over a minimum of two years. The results showed that patients in the FA(k) group had better patient reported outcomes and range of motion at two years postoperatively. Utilizing an individualized alignment plan (FA(k)) led to improved outcomes without changing the overall limb alignment, especially for patients with constitutional varus.
JOURNAL OF ARTHROPLASTY
(2023)
Article
Environmental Sciences
Kaori Tsutsumi, Utayo Nakaya, Yuta Koshino, Mari Tateno, Kazuhisa Matsumoto, Mai Tanaka, Mika Yokoyama, Tatsunori Horie, Mina Samukawa, Tamotsu Kamishima, Harukazu Tohyama
Summary: This study measured talar displacement using ultrasound during an anterior drawer test with a Telos device. The results showed that talar displacement was lower in the group with a history of ankle sprain compared to the control group. The ultrasound-based quantitative anterior drawer test using a Telos device was found to be more accurate in detecting reduced ankle joint mobility than the conventional stress X-ray.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Orthopedics
Arne Burssens, Roman Susdorf, Nicola Krahenbuhl, Ursina Peterhans, Roxa Ruiz, Alexej Barg, Beat Hintermann
Summary: This study quantified the 3-dimensional ankle, hindfoot, and subtalar joint alignment after a solitary supramalleolar osteotomy. Alterations in the subtalar joint alignment, which occurred by 2 to 3 degrees in each anatomic plane, were found. Further studies on the variation of subtalar joint alignment change are needed before recommendations can be given related to inframalleolar procedures in conjunction to supramalleolar osteotomies.
FOOT & ANKLE INTERNATIONAL
(2022)
Article
Orthopedics
Francesco Zambianchi, Andrea Giorgini, Andrea Ensini, Vincenzo Lombari, Valerio Daffara, Fabio Catani
Summary: The study investigated femoral component alignment in patients undergoing soft tissue-guided, navigated TKA. Results showed that with a mechanically aligned tibial component and tensioned soft tissues, the femoral component was placed at an average of 1.7 degrees varus in the coronal plane, aligning with the preoperative distal femoral joint line. Satisfactory knee function and excellent pain relief were demonstrated postoperatively based on KOOS and KSS scores.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2021)
Article
Orthopedics
Francois Lintz, Alessio Bernasconi, Kristian Buedts, Matthew Welck, Scott Ellis, Cesar de Cesar Netto
Summary: This study evaluated the spatial distribution of bone mineral density in the ankle joint and found that the stress distribution in the joint affects the distribution of bone density. Varus hindfeet were associated with greater medial bone density, while valgus hindfeet were associated with greater lateral bone density.
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME
(2023)