Article
Orthopedics
Leonid Solomin, Konstantin Ukhanov, Alexander Kirienko, John E. Herzenberg
Summary: This study aimed to test a novel planning method for simultaneous midfoot and hindfoot deformity correction using reference lines and angles. The results of the study demonstrated the efficacy of the new method in three case examples, suggesting its potential for complex deformity correction.
JOURNAL OF FOOT & ANKLE SURGERY
(2021)
Article
Medicine, General & Internal
Mateo Lopez-Moral, Raul J. Molines-Barroso, Irene Sanz-Corbalan, Aroa Tardaguila-Garcia, Marta Garcia-Madrid, Jose Luis Lazaro-Martinez
Summary: Weight-bearing lateral X-ray can be used to predict the probability of ulceration in patients with midfoot Charcot neuroarthropathy (CN), with differences observed based on lateral and medial column deformities.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Clinical Neurology
Venu M. Nemani, Philip K. Louie, Caroline E. Drolet, John M. Rhee
Summary: It is unclear whether cervical sagittal deformity (CSD) should be defined based on radiographic parameters alone or a combination of clinical and radiographic factors. Additionally, it remains uncertain whether patients with radiographic malalignment alone should undergo corrective surgery for CSD when they primarily present with neurologic symptoms.
Article
Orthopedics
Sancar Bakircioglu, Murat Danisman, Ozan Tuncay, Ulas Can Kolac, Muhammed Abdulkadir Bulut, Guney Yilmaz
Summary: This study retrospectively analyzed 13 cases of complex rigid foot deformities treated with the Smart Correction fixator system from 2016 to 2020. The results showed that the system was effective in treating complex foot deformities, achieving plantigrade foot and improving soft tissue balance.
INTERNATIONAL ORTHOPAEDICS
(2023)
Article
Orthopedics
Talal B. Abalkhail, Philip K. McClure
Summary: Evaluate the validity of using SMAA and SJLA methods to calculate knee flexion or extension contracture, and discuss their clinical applications. The results of the study show that the SJLA method is practical for quantifying soft tissue contribution and degree of contracture.
STRATEGIES IN TRAUMA AND LIMB RECONSTRUCTION
(2022)
Review
Orthopedics
Todd F. Ritzman, Lorena Floccari
Summary: Sagittal balance is crucial in achieving optimal outcomes in adolescent idiopathic scoliosis. Restoring sagittal alignment during posterior spinal fusion is important for avoiding complications and long-term sequelae. Objective criteria and technical considerations can guide sagittal plane correction, while other surgical techniques can optimize restoration of thoracic kyphosis.
JOURNAL OF THE AMERICAN ACADEMY OF ORTHOPAEDIC SURGEONS
(2022)
Article
Orthopedics
Victor A. Vilenskiy, Leonid Nikolaevich Solomin, Alexander Igorevitch Utekhin
Summary: The study proposed a method for planning femur deformity correction in the sagittal plane based on mechanical axes, improving the quality of correction by measuring angular relationships and developing correction methods.
JOURNAL OF LIMB LENGTHENING & RECONSTRUCTION
(2021)
Article
Pediatrics
Matthew A. Halanski, Rewais Hanna, James Bernatz, Max Twedt, Sarah Sund, Karen Patterson, Kenneth J. Noonan, Meredith Schultz, Mary K. Schroth, Mark Sharafinski, Brian P. Hasley
Summary: This study retrospectively reviewed post-operative sagittal plane deformities in patients with Spinal Muscular Atrophy type 2 treated with posterior spinal instrumentation. It found that 40% of patients developed obvious tucked chin, tipped trunk, or both, indicating that sagittal plane deformities commonly occur outside the instrumented levels. Additionally, a decrease in thoracic kyphosis over time was associated with subsequent sagittal deformities in the cervical or pelvic regions.
Article
Multidisciplinary Sciences
Takuma Inai, Tomoya Takabayashi
Summary: This study estimates the lower-limb sagittal joint angles during gait from the norms of foot acceleration and angular velocity using machine learning and validates the accuracy of the estimated joint angles with those obtained using a motion capture system.
Article
Clinical Neurology
Wesley M. Durand, Renaud Lafage, D. Kojo Hamilton, Peter G. Passias, Han Jo Kim, Themistocles Protopsaltis, Virginie Lafage, Justin S. Smith, Christopher Shaffrey, Munish Gupta, Michael P. Kelly, Eric O. Klineberg, Frank Schwab, Jeffrey L. Gum, Gregory Mundis, Robert Eastlack, Khaled Kebaish, Alex Soroceanu, Richard A. Hostin, Doug Burton, Shay Bess, Christopher Ames, Robert A. Hart, Alan H. Daniels
Summary: This study utilized AI algorithms to cluster preoperative lateral radiographs of adult spinal deformity patients, identifying distinct spinal morphology characteristics and their associations with sagittal alignment parameters, surgical features, and outcomes. Patients in different clusters exhibited significant differences in characteristics and surgical outcomes.
EUROPEAN SPINE JOURNAL
(2021)
Article
Automation & Control Systems
Shiping Zuo, Jianfeng Li, Mingjie Dong, Ran Jiao, Shuang Wang, Jie Ju, Yu Wang
Summary: This article proposes a novel correction requirement-dominated design approach for composite parallel external fixator (PEF) to overcome the problems of existing PEFs in adapting to various deformity types. The approach introduces multisite frame mounting modes and multitype struts to form required PEF configurations. Clinical cases, composite PEF assembly simulations, and experiments on the mechanical prototype are conducted to verify the feasibility and effectiveness of the approach.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2023)
Article
Engineering, Multidisciplinary
Shiping Zuo, Jianfeng Li, Mingjie Dong, Chunjing Tao, Ran Jiao, Guotong Li
Summary: A novel analytical detection approach is proposed in this paper to predict the risk of bone cross-section and soft tissue collisions in the gradual correction process. The method involves modeling and calculation, and provides adjustment strategies to resolve issues.
APPLIED MATHEMATICAL MODELLING
(2022)
Article
Orthopedics
Tonya An, Edward Haupt, Max Michalski, Jari Salo, Glenn Pfeffer
Summary: This study is the first to examine the rotational deformity in the midfoot of Charcot-Marie-Tooth (CMT) patients, identifying abnormalities in axial plane adduction and coronal plane rotation at the talonavicular joint. These findings provide important insights for the successful correction of CMT cavovarus foot.
FOOT & ANKLE INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
Chang Liu, Sungwoo Park, James Finley
Summary: This study investigated the influence of different reference points on dynamic balance control in the sagittal plane during perturbed walking. The results showed that choosing different reference points did not alter the relationship between peak angular momentum and perturbation amplitude. Using the center of mass as the reference point allowed for easier determination of how momentum from contralateral limbs offset each other to regulate whole-body angular momentum, while analysis of coordination patterns referenced to the leading edge of the base of support may provide more insight into the inverted-pendulum dynamics of walking during responses to sudden losses of balance.
Article
Engineering, Biomedical
Jeff T. Wight, Jordon E. J. Garman, David R. Hooper, Christopher T. Robertson, Reed Ferber, Michelle C. Boling
Summary: Recent research suggests that distance running stride-to-stride variability is related to performance and injury. This study examined the sagittal plane joint angles to assess stride-to-stride variability among lower body joints. The results showed significant differences among the joints, with knee swing being the most variable condition. Strong correlations were found between stance and swing variability for all three joints, and moderate to strong correlations were observed among the joints. This study contributes to a better understanding of the joints and phases that contribute most to variability in the overall stride, and suggests that runners have a similar overall stride-to-stride variability pattern across joints and phases.
SPORTS BIOMECHANICS
(2022)