Article
Orthopedics
Hope S. Thalody, Zachary D. Post, Tiffany N. Bridges, Qudratullah S. Qadiri, Amira Scaramella, Alvin C. Ong, Danielle Y. Ponzio
Summary: This study compared the canal fill ratio and coronal alignment between primary total hip arthroplasty procedures performed with automated impaction and manual mallet impaction. The results showed that automated impaction is a safe and effective technique for femoral preparation in primary THA, which resulted in improved stem coronal alignment, optimized canal fill within the proximal femur, and reduced operative times.
JOURNAL OF ARTHROPLASTY
(2023)
Article
Orthopedics
Xinzhe Lu, Zian Zhang, Wenzhe Wang, Hao Xu, Haining Zhang
Summary: Through a study on cadavers using robot-assisted total hip replacement, the accuracy and safety of a newly constructed robotic arm for the entire process of THA was proven suitable for clinical trials.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2023)
Article
Orthopedics
Bolun Liu, Huizhi Wang, Min Zhang, Junwei Li, Ningze Zhang, Yichao Luan, Chaohua Fang, Cheng-Kung Cheng
Summary: This study demonstrates that femoral stems with an auxetic lattice structure cause less stress shielding after THA compared to traditional solid femoral stems. A femoral stem based on the M-type geometry profile is recommended to minimize stress shielding of surrounding bone.
JOURNAL OF ORTHOPAEDIC TRANSLATION
(2023)
Review
Medicine, General & Internal
Michele Palazzuolo, Alessandro Bensa, Stefan Bauer, William G. G. Blakeney, Giuseppe Filardo, Martin Riegger
Summary: This systematic review and meta-analysis compared resurfacing hip arthroplasty (RHA) and total hip arthroplasty (THA) in terms of complications, revisions, functional outcomes, blood loss, operative time and metal ions levels. The findings showed that RHA had significantly lower blood loss but longer operative time compared to THA. There was no significant difference in complications, revisions, functional outcomes, and metal ion levels between RHA and THA. Both RHA and THA were found to be safe and effective, with RHA being a valid alternative to THA in young and active patients.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Orthopedics
Seth T. Reine, Yin Xi, Avneesh Chhabra, Jenny LaCross, Ajay Kohli, Joel E. Wells
Summary: Inactive patients achieve greater measure improvements following THA; active patients achieve better absolute outcomes than inactive patients; increasing activity levels do not incrementally improve patient-reported outcome measures.
JOURNAL OF ARTHROPLASTY
(2022)
Article
Biology
Zineddine Izri, Armin Bijanzad, Shams Torabnia, Ismail Lazoglu
Summary: Additive manufacturing revolutionizes the fabrication of medical implants and introduces lattice structures in hip implants that alleviate stress shielding issues. This study numerically investigates the impact of different lattice parameters and materials on the implant, and determines the optimum parameters.
COMPUTERS IN BIOLOGY AND MEDICINE
(2022)
Review
Orthopedics
Jacopo Albanese, Pietro Feltri, Angelo Boffa, Brian C. Werner, Francesco Traina, Giuseppe Filardo
Summary: The aim of this study was to evaluate the risk of periprosthetic joint infection (PJI) or other complications after joint arthroplasty in patients who received preoperative corticosteroids injections. The study found a significant association between corticosteroids injections and PJI in total hip arthroplasty (THA) patients, but no association in knee arthroplasty patients. Furthermore, the timing of the injections is important, and corticosteroids should not be administered within 3 months before hip arthroplasty.
JOURNAL OF ARTHROPLASTY
(2023)
Article
Orthopedics
Ristolainen Leena, Kettunen Jyrki, Lohikoski Jouni, Kautiainen Hannu, Manninen Mikko
Summary: This study aimed to assess pain and physical function after one- and five-years post-operatively in patients who underwent unilateral total hip arthroplasty (THA) and bilateral THA simultaneously. The results showed that patients who underwent bilateral THA had slightly better physical function than those who underwent unilateral THA after one year; however, this difference was not clinically significant.
BMC MUSCULOSKELETAL DISORDERS
(2023)
Article
Orthopedics
Nathanael D. Heckmann, JaeWon Yang, Kevin L. Ong, Edmund C. Lau, Brian C. Fuller, Daniel D. Bohl, Craig J. Della Valle
Summary: Revision surgery for instability within the first 3 months postoperatively is associated with higher risk of periprosthetic joint infection compared to later revisions. However, revisions performed within 9 months of the index surgery may have lower rates of subsequent instability than those performed after 12 months, possibly due to differences in acetabular revision and head-liner exchange rates.
JOURNAL OF ARTHROPLASTY
(2021)
Article
Orthopedics
Nathanael D. Heckmann, Haley L. Nakata, Brian C. Chung, Jackson R. Baker, Donald B. Longjohn, Alexander B. Christ, Daniel A. Oakes
Summary: The study assessed the outcomes of proximal femoral replacement (PFR) for nononcologic indications in revision total hip arthroplasty (THA) and found excellent short-term survivorship and high patient satisfaction with the use of modern techniques. Despite some patients experiencing postoperative complications, overall results were satisfactory.
JOURNAL OF ARTHROPLASTY
(2022)
Article
Orthopedics
Matthew L. Hadley, Matthew B. Shirley, Luis F. Pulido, David G. Lewallen
Summary: This study retrospectively reviewed 46 cases of proximal femoral telescoping allograft prosthetic composites (APCs) in revision total hip arthroplasty (THA). The results showed that the overall patient survival rate at 10 years was 58%, reoperation-free survival rate was 76%, and construct survival rate was 95%. Radiographic analysis revealed good union at the APC-host interface, minimal allograft resorption, and satisfactory clinical outcomes.
JOURNAL OF ARTHROPLASTY
(2023)
Article
Orthopedics
Henrik C. Baecker, Chia H. Wu, Arne Kienzle, Carsten Perka, Clemens Gwinner
Summary: This study aimed to identify mechanical failures in total hip arthroplasties performed at a major academic center and their associated risk factors. The results showed that there were different types of mechanical failures in 13 patients, and they were not related to participation in sports or BMI. Therefore, it is important to assess and screen patients for risk factors before surgery.
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
(2023)
Article
Orthopedics
Yuan Liu, Wen-Xing Wei, Yi Zeng, Jun Ma, Jing Yang, Bin Shen
Summary: This study compared the periprosthetic bone mineral density (BMD) changes of Tri-Lock Bone Preserving Stem with two other commonly used stems (Corail and Summit) after total hip arthroplasty (THA). The results showed that there were no significant differences in the periprosthetic BMD changes between the three groups after 5 years. However, there were some differences in BMD loss and clinical outcomes among different subgroups.
ORTHOPAEDIC SURGERY
(2022)
Article
Orthopedics
Olivia B. de Araujo, Chinmay S. Paranjape, Daniel N. Bracey, Anna D. Vergun
Summary: The combination of in situ pinning (ISP) followed by reorienting intertrochanteric osteotomy (ITO) and subsequent conversion total hip arthroplasty (THA) is a more cost-effective treatment strategy for severe slipped capital femoral epiphysis (SCFE) patients, despite higher costs. ISP alone (ISPa) with earlier THA is less costly but achieves poorer outcomes. The cost-effectiveness of the two strategies should be considered based on the individual's life expectancy and implant survivorship.
JOURNAL OF ARTHROPLASTY
(2023)
Article
Orthopedics
Bjoern Michel, Peter Augat, Markus T. Berninger, Lena Keppler, Gerhard Simon, Christian von Rueden, Christof Birkenmaier, Rolf Schipp, Johannes Becker
Summary: The purpose of this study was to evaluate the osseointegration and radiological outcomes in patients after total hip arthroplasty using different load patterns and CCD angles for a cementless stem design. Results showed no significant difference in clinical (Harris Hip Score) and radiological outcomes between the two groups at final follow-up, indicating that the choice of CCD angle did not affect osseointegration and load transfer. However, there were significant bone density loss and radiolucency in specific zones for each group.
INTERNATIONAL ORTHOPAEDICS
(2023)
Article
Clinical Neurology
Tetsuhiko Inoue, Takayuki Higashi, Naomi Kobayashi, Manabu Ide, Kengo Harigane, Yuichi Mochida, Yutaka Inaba
Summary: This retrospective cohort study examined factors related to severe aggravation of preexisting cervical lesions in patients with rheumatoid arthritis (RA) under current pharmacologic treatments with biologics. Results showed that preexisting subaxial subluxation (SAS) lesions were associated with aggravation, while biologics may be effective at preventing aggravation.
Article
Orthopedics
Daigo Kobayashi, Hyonmin Choe, Naomi Kobayashi, Shintaro Watanabe, Yutaka Inaba
Summary: This study aimed to investigate the effect of changes in whole-body alignment on ipsilateral knee pain in patients after total hip arthroplasty. The results showed that half of the patients experienced a reduction in ipsilateral knee pain following the surgery, but some patients still had residual knee pain. Postoperative knee pain was associated with K-L grade, preoperative knee pain visual analog scale, and preoperative sagittal vertical axis.
JOURNAL OF ORTHOPAEDIC SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Hyonmin Choe, Naomi Kobayashi, Yohei Ito, Hiroyuki Ike, Taro Tezuka, Masanobu Takeyama, Yusuke Kawabata, Yutaka Inaba
Summary: This study investigated the clinical utility of real-time polymerase chain reaction (PCR) targeting the mecA gene and the 16S rRNA gene for the detection of iliopsoas abscess (IPA). The results showed that PCR targeting bacterial DNA can detect bacterial DNA in culture-negative cases and improve the detectability of Methicillin-resistant Staphylococci infection in IPA patients.
BIOMED RESEARCH INTERNATIONAL
(2022)
Article
Orthopedics
Junpei Fujii, Shotaro Aoyama, Taro Tezuka, Naomi Kobayashi, Eiryo Kawakami, Yutaka Inaba
Summary: This study utilized artificial intelligence to predict changes in pelvic flexion after total hip arthroplasty. By integrating preoperative and postoperative patient information, a machine learning model was developed to provide guidance for preoperative planning of THA.
JOURNAL OF ARTHROPLASTY
(2023)
Article
Orthopedics
Hyonmin Choe, Naomi Kobayashi, Koki Abe, Yuta Hieda, Taro Tezuka, Yutaka Inaba
Summary: This study aimed to investigate whether serum immune markers can improve the diagnostic accuracy of periprosthetic joint infection (PJI). The results showed that albumin, globulin, albumin-globulin ratio (AGR), and combination indices with CRP have potential value in improving preoperative serum diagnosis for PJI.
JOURNAL OF ARTHROPLASTY
(2023)
Article
Orthopedics
Naomi Kobayashi, Yohei Yukizawa, Shu Takagawa, Hideki Honda, Kensuke Kameda, Yutaka Inaba
Summary: This article presents a detailed technical discussion on the complete capsular repair using knotless barbed sutures for mini-direct lateral approach THA. The results show a successful complete capsular repair in 93.3% of cases, with an average operative time of 106 +/- 20 minutes and an average intraoperative bleeding of 369 +/- 241 mL. No major complications occurred both intra and postoperatively.
TECHNIQUES IN ORTHOPAEDICS
(2023)
Article
Orthopedics
Olufemi R. Ayeni, Rintje Agricola, A. J. (Tony) Andrade, Oladimeji Ranti Babalola, Seung-Hoon Baek, Filiep Bataillie, Etienne L. Belzile, Nicolas Bonin, Matthew J. Brick, Jordan Buchko, Josip Cakic, Sasha Carsen, Yi-Sheng Chan, Ryan M. Degen, Guillaume D. Dumont, Andrew Duong, Tim Dwyer, Leandro Ejnisman, Joshua D. Harris, Bandar Hetaimish, Kelly Johnston, Vickas Khanduja, Vickas Khanna, Naomi Kobayashi, Baris Kocaoglu, Jason L. Koh, Jovan Laskovski, Marie-Claude Leblanc, Dror Lindner, Sverre Loken, Bent Lund, T. Sean Lynch, Travis G. Maak, Ajay Malviya, Oliver Marin-Pena, Mark O. McConkey, Omer Mei-Dan, Travis Menge, Marie-Lyne Nault, Carlomagno Cardenas Nylander, Derek Ochiai, John O'Donnell, Athanasios Papavasiliou, Thierry Pauyo, Marcelo C. Queiroz, Filippo Randelli, Chris Raynor, Paulo Rego, Marc Safran, Hatem Galal Said, Mikael Sansone, Andre Sarmento, Matti Seppanen, Paul Shim, Nicole Simunovic, Vehniah K. Tjong, Soshi Uchida, Maria-Roxana Viamont-Guerra, Daniel Whelan, Ivan Wong, Gavin Wood, Thomas H. Wuerz, Yi-Meng Yen, Qing-Feng Yin
Summary: A study was conducted to evaluate the surgical correction of femoroacetabular impingement syndrome (FAIS) as well as the postoperative complications. The results suggest that intraoperative fluoroscopy and dynamic hip assessment are important, and postoperative evaluation should include Dunn lateral and anteroposterior radiographs. The study also identified clinical assessment and treatment recommendations for different types of cases.
ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY
(2023)
Editorial Material
Orthopedics
Naomi Kobayashi
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME
(2023)
Article
Medicine, General & Internal
Hyonmin Choe, Naomi Kobayashi, Koki Abe, Yuta Hieda, Hiroyuki Ike, Ken Kumagai, Kazuma Miyatake, Takahiro Fujisawa, Yutaka Inaba
Summary: This study evaluated the accuracy of ultrasonography in detecting postoperative complications in HRA patients using a screening protocol that targets periprosthetic muscles. The results showed that ultrasonography can detect postoperative complications in HRA patients as effectively as MRI, with superior visibility in periprosthetic muscles compared to MRI.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Surgery
Keiju Saito, Yusuke Kawabata, Naomi Kobayashi, Hiromichi Iwashita, Ikuma Kato, Masako Otani, Kenta Hayashida, Shintaro Fujita, Tomotaka Yoshida, Hyonmin Choe, Masanobu Takeyama, Yutaka Inaba
Summary: Although synovial sarcoma is a common soft tissue sarcoma, primary intra-articular cases are extremely rare. We report a case of synovial sarcoma arising from the hip joint, treated with hip arthroscopy. Histological findings confirmed the diagnosis, and adjuvant chemotherapy and radiotherapy were performed. This is the first case of intra-articular synovial sarcoma of the hip joint excised via hip arthroscopy.
JOURNAL OF SURGICAL CASE REPORTS
(2023)
Article
Orthopedics
Shunsuke Miyajima, Naomi Kobayashi, Yohei Yukizawa, Emi Kamono, Hyonmin Choe, Hiroyuki Ike, Ken Kumagai, Yutaka Inaba
Summary: This study aimed to determine the appropriate position of the shelf in shelf acetabuloplasty to avoid range of motion loss. Through both actual surgery and virtual analysis, it was found that anterior position and center-edge angle are major factors limiting internal rotation range of motion.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2023)
Review
Orthopedics
Keiji Imanishi, Naomi Kobayashi, Emi Kamono, Yohei Yukizawa, Shu Takagawa, Hyonmin Choe, Ken Kumagai, Yutaka Inaba
Summary: TXA administration significantly reduces the incidence of overall infection, including periprosthetic joint infection and surgical site infection. It is especially effective in patients undergoing total hip and total knee arthroplasty, and intravenous administration is more effective than topical administration.
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
(2023)
Article
Orthopedics
Eiryo Kawakami, Naomi Kobayashi, Yuichiro Ichihara, Tetsuo Ishikawa, Hyonmin Choe, Akito Tomoyama, Yutaka Inaba
Summary: This study aimed to compare the changes in blood biochemical markers between infected and non-infected patients after joint replacement surgery to understand the characteristics of infection. By analyzing the preoperative and postoperative blood biochemical markers at 3, 6, and 12 months, it was possible to differentiate between infected and non-infected patients. Infected patients in the high-risk group were more likely to experience postoperative recurrence.
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
(2023)
Article
Orthopedics
Akira Morita, Naomi Kobayashi, Hyonmin Choe, Taro Tezuka, Toshihiro Misumi, Yutaka Inaba
Summary: This study compared the changes in periprosthetic bone mineral density (BMD) after total hip arthroplasty (THA) using proximal fixation concept stems made of different titanium alloys. The results showed that the alpha + beta titanium alloys stem resulted in a significantly higher rate of BMD loss in zones 6 and 7 compared with the beta titanium alloys stem.
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
(2023)
Review
Orthopedics
Naomi Kobayashi, Emi Kamono, Kensuke Kameda, Yohei Yukizawa, Shu Takagawa, Hideki Honda, Yutaka Inaba
Summary: This study found that capsular repair after total hip arthroplasty can lead to lower dislocation rates and better Harris Hip Scores.
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
(2022)
