Article
Orthopedics
Hyun-Soo Moon, Sung-Hwan Kim, Dae-Kyung Kwak, Seung-Hun Lee, Yung-Hong Lee, Je-Hyun Yoo
Summary: Body mass index and advanced osteoarthritis affect the discrepancy in the coronal alignment of the lower limb between standing and supine radiographs.
BMC MUSCULOSKELETAL DISORDERS
(2022)
Article
Orthopedics
A. Bhanushali, M. Chimutengwende-Gordon, M. Beck, S. A. Callary, K. Costi, D. W. Howie, L. B. Solomon
Summary: This study aimed to compare clinically relevant measurements of hip dysplasia on radiographs taken in the supine and standing position, and to compare Hip2Norm software and Picture Archiving and Communication System (PACS)-derived digital radiological measurements. The results showed significant variation in pelvic tilt and anterior coverage between supine and standing radiographs, suggesting the benefit of having both radiographs when planning surgical correction of hip dysplasia. It was also recommended to use PACS-derived measurements of acetabular inclination and sharp angle due to poor interobserver error on Hip2Norm.
BONE & JOINT JOURNAL
(2021)
Article
Orthopedics
Steffen Brodt, Marcel Schulze, Benjamin Jacob, Georgi Wassilew, Dimitri Nowack, Sebastian Rohe, Georg Matziolis
Summary: The correct adjustment of leg length is crucial in total hip replacement surgeries. This study compared the measurement of leg length in the supine and standing positions before and after surgery and found that both methods were equally valid and accurate compared to radiological measurement.
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
(2023)
Article
Surgery
Tariq Alkhatatbeh, Jia Lin Wang, Wei Jia Zhang, Yong Wei Li, Yong Xia, Wei Wang
Summary: This study proposes a feature-based automated method for stitching together full-length lower limb x-ray images, which demonstrates higher precision and speed compared to manual stitching and previously published methods.
FRONTIERS IN SURGERY
(2022)
Article
Clinical Neurology
Jingye Wu, Feng Wei, Lin Ma, Jianing Li, Ning Zhang, Wei Tian, Yuqing Sun
Summary: This study aimed to assess the accuracy and reliability of standing lateral lumbar radiographs for measuring spinopelvic parameters, compared with whole-spine EOS (R) images. The results showed good measurement agreement between the two imaging methods and excellent reliability for observer's measurements.
Article
Orthopedics
Matthew J. Miller, Jennifer M. Blankenship, Paul W. Kline, Edward L. Melanson, Cory L. Christiansen
Summary: The study found that individuals with lower limb amputation spent most of their time sitting, followed by standing and stepping. The majority of sitting time was accumulated in bouts of over 90 minutes, while standing and stepping activities were mostly accrued in bouts of less than 1 minute. Differences in sitting and standing time were observed between individuals with dysvascular and traumatic lower limb amputations.
Article
Orthopedics
Nuno Marques Luis, Ricardo Varatojo
Summary: Full-length standing radiograph in an anteroposterior projection is crucial for defining limb alignment and angles. Correct surgical planning and execution are essential for patients with torsional malalignment, with preoperative assessment typically done using computerized tomography scans.
EFORT OPEN REVIEWS
(2021)
Article
Neurosciences
Courtney M. Butowicz, Adam J. Yoder, Shawn Farrokhi, Brittney Mazzone, Brad D. Hendershot
Summary: In individuals with lower limb loss, hip, knee, and ankle joint motions influence postural sway during standing balance. Specifically, increasing intact-side hip flexion, knee extension, and ankle plantarflexion motion increases postural sway. With vision removed, a re-weighting of lower limb joint sensory mechanisms may control postural sway, indicating a potential increase in fall risk.
Article
Medicine, General & Internal
Felix Erne, Priyanka Grover, Marcel Dreischarf, Marie K. Reumann, Dominik Saul, Tina Histing, Andreas K. Nuessler, Fabian Springer, Carolin Scholl
Summary: This study aims to develop and validate a novel AI-based algorithm for automated assessment of lower limb alignment, which showed excellent reliability for human measurements in pre- and postoperative full-leg radiographs, allowing for efficient analysis of large datasets in daily routine.
Article
Orthopedics
Na-Kyoung Lee, Tae Woo Kim, Sanghoon Lee, Yun Seong Choi, Seung-Baik Kang, Chong Bum Chang
Summary: The KJLO after TKA is strongly influenced by the distance between the feet, with KJLO changing by 3.7 degrees per 100 mm. Standardization of the distance between the feet is necessary for reproducible assessment of KJLO after TKA.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2022)
Article
Orthopedics
Tianlang Xie, Xufeng Jiao, Xiaomei Yao, Zheng Li, Shuai An, Guanglei Cao
Summary: This study aimed to clarify the leg length change after medial mobile-bearing unicompartmental knee arthroplasty (MOUKA) using a novel double calibration method. The results showed that the majority of patients only experienced a slight increase in leg length after MOUKA, and this increase did not affect patients' perception and short-term function.
BMC MUSCULOSKELETAL DISORDERS
(2023)
Article
Clinical Neurology
Marc Khalife, Claudio Vergari, Guillaume Rebeyrat, Emmanuelle Ferrero, Pierre Guigui, Ayman Assi, Wafa Skalli
Summary: This multicentric study used biplanar X-rays to investigate the variation of femoral neck version according to spinopelvic and lower limb 3D alignment. The results showed that patients with lower lumbar lordosis had a higher femoral neck version, which could be helpful for implant positioning in total hip replacement procedures. Additionally, higher pelvic shift, older age, male gender, and increased femoral torsion were also correlated with higher femoral neck version.
EUROPEAN SPINE JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Jianyu Wang, Xiangbo Xu, Jinhao Liu
Summary: This study improves the precision of pedestrian positioning by constructing a lower limb constraint model and using dual MIMUs to form a pedestrian inertial navigation system. The proposed constraint methods effectively suppress position drift.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Orthopedics
Matthew C. Gallo, Brian C. Chung, Douglass W. Tucker, Amit S. Piple, Alexander B. Christ, Jay R. Lieberman, Nathanael D. Heckmann
Summary: In a cohort of 100 patients, it was found that approximately 1 in 6 patients had a limb length discrepancy of >10 mm when measured from different knee joint reference points. Female gender was significantly associated with increased femoral length asymmetry.
JOURNAL OF ARTHROPLASTY
(2021)
Article
Orthopedics
Claudio Glowalla, Severin Langer, Ulrich Lenze, Igor Lazic, Michael T. T. Hirschmann, Florian Hinterwimmer, Rudiger von Eisenhart-Rothe, Florian Pohlig
Summary: Robotic arm-assisted total knee arthroplasty (raTKA) aims to improve accuracy in implant positioning and limb alignment, but the correlation between manual radiographic and navigation measurements using the MAKO (TM) system is unclear. High agreement is crucial for achieving reliable limb alignment.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2023)