Article
Orthopedics
Sakkadech Limmahakhun, Anuchit Chaiamporn, Kasisin Klunklin, Warakorn Jingjit
Summary: This study compared the outcomes of gradual reducing radius (GR) femoral component and multi-radius (MR) in total knee arthroplasty. The results showed that GR was noninferior to MR in terms of knee functions and performance after surgery, but it provided greater range of motion for the knee joint.
BMC MUSCULOSKELETAL DISORDERS
(2023)
Article
Orthopedics
Mingjiang He, Hongmei Zhang, Peiyan Hu, Lin Jing, Pengcheng Shan
Summary: A MEMS system based on spatial alignment and navigation technology was developed to assist with femoral extramedullary alignment osteotomy (FEAO) in total knee arthroplasty (TKA). The system can locate and adjust the femoral distal condylar osteotomy (FDCO) to achieve optimal femoral prosthesis placement. This portable navigation device provides a novel approach for FDCO.
ORTHOPAEDIC SURGERY
(2023)
Article
Orthopedics
Ji Hoon Bae, Ja-Woon Lee, Soo-Hyun Kim, Sang-Gyun Kim, Young-Sik Jeon, Jeong Seok Choi
Summary: The study aimed to investigate the effects of the tibiofemoral synchronization technique on tibial torsion and lower limb rotation after primary total knee arthroplasty. The results showed that this technique had minimal impact on tibial torsion but resulted in changes in femoral anteversion and femoral neck-malleolar angle.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2022)
Article
Orthopedics
Jing-yang Sun, Guo-qiang Zhang, Jun-min Shen, Yin-qiao Du, Tie-jian Li, Zong-jie Geng, Yong-gang Zhou, Yan Wang
Summary: Combining corrective osteotomy with total knee arthroplasty in a single-stage procedure was effective for knee osteoarthritis with femoral supracondylar deformity, leading to improved mechanical alignment, joint line congruence, clinical symptoms, and range of motion.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2021)
Review
Medicine, General & Internal
Marco Maestri, Francesco Castagnini, Federico Giardina, Giuseppe Tella, Enrico Tassinari, Francesco Traina
Summary: This systematic review assessed the clinical and radiographic outcomes of isolated femoral or tibial component revisions compared to total knee revisions. The study found no differences in clinical outcomes between partial and total revisions, but partial revisions had less bleeding and shorter operative times. However, the poor quality of the studies limited the reliability of the conclusions.
MEDICAL PRINCIPLES AND PRACTICE
(2023)
Article
Orthopedics
Sammy Abdullah ALShammari, Keun Young Choi, In Jun Koh, Man Soo Kim, Yong In
Summary: This study compared the use of patient-specific instrumentation (PSI) and conventional intermedullary (IM) guides for primary total knee arthroplasty (TKA) in patients with severe femoral bowing. The results showed that PSI did not significantly differ from conventional guides in terms of postoperative alignment and rotational alignment of components.
BMC MUSCULOSKELETAL DISORDERS
(2021)
Article
Orthopedics
Stefan Gaukel, Raphael N. Vuille-dit-Bille, Michel Schlappi, Peter P. Koch
Summary: Efforts in total knee arthroplasty are made to improve accuracy for a correct leg axis and reduce component malpositioning using patient-specific instruments. The study showed high accuracy of CT-based patient-specific instrumentation and single-use instruments in achieving postoperative knee angles and mechanical leg axes, with fewer outliers compared to standard instruments.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2022)
Article
Orthopedics
Chaturong Pornrattanamaneewong, Akraporn Sitthitheerarut, Pakpoom Ruangsomboon, Keerati Chareancholvanich, Rapeepat Narkbunnam
Summary: Age is an independent risk factor for early periprosthetic femoral fracture (PFF) after primary total knee arthroplasty (TKA). More well-controlled studies with larger sample sizes are needed to further explore this issue.
BMC MUSCULOSKELETAL DISORDERS
(2021)
Article
Surgery
Yiming Yang, Xianli Zeng, Yan Jin, Zhemin Zhu, Tsung-Yuan Tsai, Jiarong Chen, Hongyuan Shen, Pingyue Li
Summary: This study assessed the difference between PCA and mLDFA in the osseous and cartilaginous contours in a non-arthritic Chinese population. The results showed that PCA significantly differed with and without cartilage in females, while mLDFA did not show significant differences in all groups. Therefore, cartilage thickness should be considered in preoperative femoral rotational resection planning.
FRONTIERS IN SURGERY
(2022)
Article
Medicine, General & Internal
Jun Young Park, Hyuck Min Kwon, Byung Woo Cho, Woo-Suk Lee, Ick Hwan Yang, Kwan Kyu Park
Summary: The study compared the accuracy of 2D-CT methods and 3D reconstruction in measuring rotational alignment of the femoral component during total knee arthroplasty. It was found that there was no significant difference in the values measured using different methods on 2D-CT compared to those obtained from the 3D model, but the values measured on 2D-CT were approximately 1 degree smaller than the 3D values.
YONSEI MEDICAL JOURNAL
(2021)
Article
Orthopedics
Young Dong Song, Shinichiro Nakamura, Shinichi Kuriyama, Kohei Nishitani, Yugo Morita, Yusuke Yamawaki, Takahiro Maeda, Sayako Sakai, Shuichi Matsuda
Summary: This study used a musculoskeletal computer model to simulate knee kinematics and kinetics between single-radius and multi-radius models. The results showed that the multi-radius model exhibited paradoxical anterior translation during squatting, while the single-radius model had a smaller anterior translation. During gait activity, the single-radius model was positioned more posteriorly than the multi-radius model. These findings suggest that changes in medial collateral ligament force can influence anterior sliding of the femur, and that the single-radius design is a reasonable choice for preventing mid-flexion instability.
Article
Geriatrics & Gerontology
Kevin T. Pritchard, Ickpyo Hong, James S. Goodwin, Jordan R. Westra, Yong-Fang Kuo, Kenneth J. Ottenbacher
Summary: The study found that obesity, smoking, and history of substance use disorder were associated with lower odds of community discharge after total hip and knee joint arthroplasty.
JOURNAL OF THE AMERICAN MEDICAL DIRECTORS ASSOCIATION
(2021)
Article
Orthopedics
Rajesh N. Maniar, Adit R. Maniar, Abhinav Mishra, Nishant M. Sanghavi
Summary: This study investigated the association between preimplantation and postimplantation femoral trochlear length measurement and anterior knee pain (AKP) and patello-femoral crepitus (PFCr). The results showed that patients with shorter native femoral trochlea and greater difference in length between implanted and native trochlea had a higher occurrence of AKP.
JOURNAL OF ARTHROPLASTY
(2023)
Article
Health Care Sciences & Services
Matteo Innocenti, Luigi Zanna, Mustafa Akkaya, Kim Huber, Bernhard Christen, Tilman Calliess
Summary: Accurate positioning of prosthetic components is crucial for successful medial unicompartmental knee arthroplasty (mUKA). This study evaluated the use of femoral CT-based landmarks for setting tibial rotation in image-based robotic-assisted mUKA and found that it reliably achieved congruent knee kinematics with minimal deviations. The mean tibia component rotation relative to the femoral landmark was +0.24 degrees.
JOURNAL OF PERSONALIZED MEDICINE
(2023)
Article
Medicine, General & Internal
Matthias Schlechter, Christoph Theil, Georg Gosheger, Burkhard Moellenbeck, Jan Schwarze, Jan Puetzler, Sebastian Bockholt
Summary: This study investigates a novel design for rotating-hinge knee (RHK) implants for knee arthroplasty. The results show that using this single-design RHK implant for revision and complex primary TKA can result in good implant survival at mid-term follow-up, with infection remaining a major concern.
JOURNAL OF CLINICAL MEDICINE
(2023)
