Article
Orthopedics
H. Gene Dossett, Jaymeson R. Arthur, Justin L. Makovicka, Kristin C. Mara, Joshua S. Bingham, Henry D. Clarke, Mark J. Spangehl
Summary: The 13-year follow-up results of a randomized controlled trial comparing kinematically aligned and mechanically aligned total knee arthroplasty showed no significant difference between the two alignment methods in terms of reoperations, complications, and patient-reported outcome measures.
JOURNAL OF ARTHROPLASTY
(2023)
Article
Orthopedics
Omer M. Farhan-Alanie, Tareq Altell, Sinead O'Donnell, Pauline May, James Doonan, Philip Rowe, Bryn Jones, Mark J. G. Blyth
Summary: This study compares the ten-year revision rates and patient-reported outcome measures of electromagnetically (EM) navigated and conventional total knee arthroplasty. The results show that there is no difference in revision rates or clinical outcomes between the two methods after ten years of follow-up. Patients who received EM navigated surgery had better outcomes at 3 months post-operatively, but the outcomes were equivalent between the two interventions from 1 to 10 years post-operatively.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2022)
Article
Orthopedics
Dohyung Lim, Dai-Soon Kwak, Minji Kim, Seoyeong Kim, Ho-Jung Cho, Jae Hyuk Choi, In Jun Koh
Summary: KA TKA was found to restore a more native amount and distribution of MCL strain compared to MA TKA. This suggests that KA TKA may lead to better performance and more normal knee sensations for patients.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2022)
Review
Orthopedics
Takanori Miura, Tsuneari Takahashi, Jun Watanabe, Yuki Kataoka, Ryusuke Ae, Hidetomo Saito, Katsushi Takeshita, Naohisa Miyakoshi
Summary: This network meta-analysis compared the clinical and radiological outcomes of mechanically aligned total knee arthroplasty (MATKA), kinematically aligned TKA (KATKA), and restricted KATKA (rKATKA). The study found that while KATKA showed slight improvement in patient-reported outcome measures compared to MATKA, there was little difference in range of motion and revision risk between the three procedures. rKATKA, which focuses on reproducing normal knee anatomy, showed similar outcomes to KATKA.
BMC MUSCULOSKELETAL DISORDERS
(2023)
Article
Medicine, General & Internal
Byung-Woo Cho, Hyoung-Taek Hong, Yong-Gon Koh, Jeehoon Choi, Kwan-Kyu Park, Kyoung-Tak Kang
Summary: This study compared the angle between external rotation references of femoral components in the axial plane by gender and lower limb alignment in Korean osteoarthritis patients, finding significant differences between men and women, but not between varus and valgus knee groups in terms of lower limb alignment. Femoral rotational alignment showed gender differences in elderly Korean OA patients, with less concern for malrotation during kinematically aligned TKA in Koreans compared to Caucasians.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Orthopedics
Katsuya Nagai, Yasuo Niki, Shu Kobayashi, Kengo Harato, Takeo Nagura, Morio Matsumoto, Masaya Nakamura
Summary: KA-TKA shows a significant lateral shift of the patella at 30 degrees knee flexion compared to MA-TKA, but patients with patellar shift were asymptomatic. There was no clear correlation between femoral component positioning and patellar shift/tilt.
JOURNAL OF ORTHOPAEDIC SCIENCE
(2021)
Article
Biophysics
Tomoyuki Kamenaga, Naoki Nakano, Koji Takayama, Masanori Tsubosaka, Yoshinori Takashima, Kenichi Kikuchi, Masahiro Fujita, Yuichi Kuroda, Shingo Hashimoto, Shinya Hayashi, Takahiro Niikura, Ryosuke Kuroda, Tomoyuki Matsumoto
Summary: This study compared plantar pressure distribution and limb alignment between kinematically aligned (KA) and mechanically aligned (MA) total knee arthroplasty (TKA) patients. Results showed that KA-TKA achieved a more neutral weight-bearing alignment through the true mechanical axis and allowed patients to walk with more evenly distributed pressure on the medial and lateral rearfoot. In contrast, MA-TKA exhibited a medial rearfoot loading pattern during walking.
JOURNAL OF BIOMECHANICS
(2021)
Article
Orthopedics
Abigail E. Niesen, Anna L. Garverick, Stephen M. Howell, Maury L. Hull
Summary: Low and non-progressive tibial baseplate migration 1 year after unrestricted kinematically aligned total knee arthroplasty should allay any concern that unrestricted kinematically aligned total knee arthroplasty increases risk of baseplate loosening due to varus alignment of the baseplate and limb.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2023)
Article
Orthopedics
V. N. Sadekar, S. Datir, V Allgar, H. Sharma
Summary: The study aims to compare the effects of mechanical and kinematic alignment methods for total knee arthroplasty on function and range of motion. Using a randomized controlled trial, 96 patients will be recruited to participate in the study and undergo preoperative and postoperative assessments.
Article
Orthopedics
Tomoyuki Matsumoto, Naoki Nakano, Kazunari Ishida, Yuichi Kuroda, Shinya Hayashi, Hirotsugu Muratsu, Ryosuke Kuroda
Summary: This study aimed to compare kinematically aligned total knee arthroplasty (KA-TKA) targeting the neutral ground mechanical axis (MA) with tibia-restricted modified KA-TKA. The study found that the ground KA-TKA group achieved a significantly deeper postoperative flexion angle compared to the modified KA-TKA group.
INTERNATIONAL ORTHOPAEDICS
(2023)
Article
Orthopedics
Stefan M. Zimmermann, Yves Scherrer, Martin Zaleski, Thorsten Jentzsch, Sandro F. Fucentese
Summary: This study investigated potential changes in tibial tuberosity trochlear groove distance (TTTG) following total knee arthroplasty (TKA). The results showed that mechanically aligned TKA significantly decreased TTTG distance in neutral, valgus, and varus knees. Further research is needed to evaluate the clinical relevance of this finding.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2022)
Article
Orthopedics
Filippo Migliorini, Nicola Maffulli, Luise Schaefer, Jens Schneider, Andrea Maria Nobili, Daniel Kaemmer, Milosch Michalak, Andreas Bell
Summary: This study is a protocol for a single-blind clinical trial comparing robotic-assisted TKA and traditional freehand TKA. The primary outcome is to compare patient-reported outcome measures, length of hospitalisation, blood values, blood transfusion units, and range of motion between the two surgical methods. The secondary outcome is to evaluate the accuracy of component positioning between robotic-assisted TKA and traditional freehand TKA.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2023)
Article
Medicine, General & Internal
Takuma Hayashi, Takafumi Hiranaka, Takaaki Fujishiro, Koji Okamoto, Motoki Koide
Summary: This report describes the revision of a failed Oxford unicompartmental knee arthroplasty to kinematically aligned total knee arthroplasty (TKA). The method allows for maintenance of the native joint line and avoidance of supplemental parts, and is suitable for patients with well-preserved medial tibial cortex.
CUREUS JOURNAL OF MEDICAL SCIENCE
(2023)
Article
Medicine, General & Internal
Jesper Bie Larsen, Ewa Roos, Mogens Laursen, Sinead Holden, Martin Nygaard Johansen, Michael Skovdal Rathleff, Lars Arendt-Nielsen, Sten Rasmussen, Soren T. Skou
Summary: This study aimed to investigate the effects of non-surgical treatment and written advice on patients with knee osteoarthritis over a period of five years. The results showed that there were no significant differences in outcomes between the two treatment groups. Most patients experienced clinically important improvements regardless of the initial treatment strategy or knee replacement surgery.
Article
Orthopedics
Payam Tarassoli, Jil A. Wood, Darren B. Chen, Will Griffiths-Jones, Johan Bellemans, Samuel J. MacDessi
Summary: This study compared the arithmetic HKA and stressed HKA measurements using radiographs and computer-assisted navigation, and found no significant difference between the two methods. These findings further support the use of the preoperative arithmetic method and the intraoperative stressed HKA technique in restoring constitutional lower limb alignment in KA TKA.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2022)