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Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association

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https://read.qxmd.com/read/30738700/spino-pelvic-lower-extremity-balance-during-walking-in-elderly-patients-with-spinal-kyphosis
#1
Kumi Kamata, Hiroshi Ozawa, Yusuke Sekiguchi, Toshimi Aizawa, Shinichi Izumi, Eiji Itoi
BACK GROUND: Patients with spinal kyphosis were radiographically evaluated while standing. However, the spino-pelvic alignment during walking is different. This study examined the spino-pelvic-lower extremity alignment during walking by a three-dimensional (3D) motion analysis. METHODS: Twenty-six patients with a sagittal vertical axis of ≥4 cm (male: female, 5:21; average age, 66 years) were evaluated. Using a 3D motion capture system, the trunk and pelvic anterior inclination angles, hip and knee joint angles were measured during a 3-min walk...
February 6, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30737067/stride-length-of-elderly-patients-with-lumbar-spinal-stenosis-multi-center-study-using-the-two-step-test
#2
Nobuyuki Fujita, Aiko Sakurai, Azusa Miyamoto, Takehiro Michikawa, Yohei Otaka, Satoshi Suzuki, Osahiko Tsuji, Narihito Nagoshi, Eijiro Okada, Mitsuru Yagi, Takashi Tsuji, Hitoshi Kono, Ken Ishii, Masaya Nakamura, Morio Matsumoto, Kota Watanabe
BACKGROUND: Short stride length is one of clinical symptoms associated with lumbar spinal stenosis (LSS). Short stride is a risk factor for falls; therefore, identification of factors associated with short stride is critical for fall prevention in LSS patients. Although the Two-Step test can conveniently assess maximal stride length, it has not become widely used; therefore, its data are limited. We identified the potential factors associated with short stride of elderly LSS patients using Two-Step test...
February 5, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30733130/association-between-speed-of-sound-of-calcaneal-bone-assessed-by-quantitative-ultrasound-and-sarcopenia-in-a-general-older-adult-population-a-cross-sectional-study
#3
Hiromi Matsumoto, Chika Tanimura, Shinji Tanishima, Hiroshi Hagino
BACKGROUND: Lower calcaneal speed of sound may be related to sarcopenia because sarcopenia and osteopenia/osteoporosis show a linked relationship in older adults. The purpose of this study is to clarify whether the speed of sound of calcaneal bone assessed by quantitative ultrasound is associated with sarcopenia in a community-dwelling older adult population. METHODS: This was a cross-sectional observational study. The participants in the study were recruited from a group of individuals who had registered for an annual town-sponsored medical check-up...
February 4, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30718042/bone-ongrowth-of-a-cementless-silver-oxide-containing-hydroxyapatite-coated-antibacterial-acetabular-socket
#4
Shunsuke Kawano, Motoki Sonohata, Shuichi Eto, Masaru Kitajima, Masaaki Mawatari
BACKGROUND: The silver oxide-containing hydroxyapatite-coated socket (KYOCERA, Osaka, Japan) is a cementless antibacterial implant that has both the osteoconductivity of the HA and the antibacterial activity of silver. The silver oxide-containing hydroxyapatite coating was shown to have good osteoconductivity and new bone formation in vitro and in vivo. However, the histological bone ongrowth of this implant has not been proven in a clinical study. METHODS: We analyzed bone ongrowth using two silver oxide-containing hydroxyapatite-coated sockets that were removed in revision total hip arthroplasty for recurrent dislocation...
February 1, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30718041/sub-deltoid-approach-for-removal-of-large-lipoma-around-the-proximal-humerus-a-report-of-three-cases
#5
Joe Hasei, Toshiyuki Kunisada, Eiji Nakata, Toshifumi Ozaki
No abstract text is available yet for this article.
February 1, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30711377/the-onset-of-deep-abdominal-muscles-activity-during-tasks-with-different-trunk-rotational-torques-in-subjects-with-non-specific-chronic-low-back-pain
#6
Satoshi Osuka, Yuta Koshino, Masanori Yamanaka, Takuya Miura, Yuki Saito, Ryo Ueno, Tomoya Ishida, Mina Samukawa, Harukazu Tohyama
BACKGROUND: Although delayed onset of the deep abdominal muscles activity in subjects with non-specific chronic low back pain (CLBP) has been suggested to be related to trunk rotational torque, no study has examined the onsets associated with non-specific CLBP during a variety of tasks with different trunk rotational torque. The aim of this study is to compare the onsets of deep abdominal muscles activity among tasks with different trunk rotational torques in subjects with and without non-specific CLBP...
January 30, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30709789/the-management-of-degloving-injuries-of-the-limb-with-full-thickness-skin-grafting-using-vacuum-sealing-drainage-or-traditional-compression-dressing-a-comparative-cohort-study
#7
Kaizong Yuan, Bin Zhao, Tokai Cooper, Zeyuan Jin, Xijie Zhou, Xinglong Chen, Zhijie Li, Weiyang Gao, Hede Yan
BACKGROUND: Degloving injuries of the limb are severe and frequently underrated. Few researches are available comparing the results of reattachment of the degloved skin grafts with the vacuum sealing drainage technique and the traditional compression dressing method. In this study, we aimed to compare the treatment outcomes of these two approaches. METHODS: Eighty-three consecutive patients were treated for degloving injury of the limb. Based on the treatment approach, the patients were divided into vacuum sealing drainage group (VSD group, n = 55) and traditional compression dressing group (TCD group, n = 28)...
January 29, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30709788/the-influence-of-pre-operative-antiplatelet-and-anticoagulant-agents-on-the-outcomes-in-elderly-patients-undergoing-early-surgery-for-hip-fracture
#8
Ken Ueoka, Takeshi Sawaguchi, Kenichi Goshima, Kenji Shigemoto, Shintaro Iwai, Akira Nakanishi
BACKGROUND: Early surgery improves the prognosis of elderly patients with hip fractures. However, many patients take antiplatelet and anticoagulant therapies for comorbidities. This study compared perioperative outcomes and 1-year mortality rates with early surgery in elderly patients with hip fractures taking or not taking these agents preoperatively. METHODS: Among 418 patients undergoing surgery for hip fractures at our institution from 2014 to 2016, 266 patients over 65 years who had surgery within 48 hours of admission were enrolled...
January 29, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30709787/tibial-tunnel-enlargement-after-anatomic-anterior-cruciate-ligament-reconstruction-with-a-bone-patellar-tendon-bone-graft-part-1-morphological-change-in-the-tibial-tunnel
#9
Tomoki Ohori, Tatsuo Mae, Konsei Shino, Yuta Tachibana, Hideki Yoshikawa, Ken Nakata
BACKGROUND: Three-dimensional (3D) computed tomography (CT) is reliable and accurate imaging modality for evaluating tunnel enlargement after anterior cruciate ligament (ACL) reconstruction. The purpose of this study was to evaluate the tibial tunnel enlargement including the morphological change after anatomic ACL reconstruction with a bone-patellar tendon-bone (BTB) graft using 3D CT models. METHODS: Eighteen patients with unilateral ACL rupture were included...
January 29, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30686689/acute-elbow-trauma-similar-to-osborne-cotterill-lesion-capitellar-impaction-fracture-associated-with-posterolateral-rotatory-instability-a-case-report-and-literature-review
#10
Koichi Yano, Yasunori Kaneshiro, Hideki Sakanaka
No abstract text is available yet for this article.
January 25, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30686690/video-examination-via-the-smartphone-a-reliable-tool-for-shoulder-function-assessment-using-the-constant-score
#11
Yariv Goldstein, Haggai Schermann, Oleg Dolkart, Efi Kazum, Alon Rabin, Eran Maman, Ofir Chechik
BACKGROUND: The use of video examinations (VE) may improve patient care by offering them a low-cost and easy access to physicians, save traveling expenses and shorten waiting time. The aim of this study was to validate the use of Smartphones for distant assessment of shoulder function by comparing the Constant scores (CS) of patients obtained by both VE and conventional face-to-face (FTF) examination. METHODS: Fifty-one subjects (age 19-80 years; women:men 18:33) who presented to a shoulder clinic with a variety of complaints were prospectively recruited and underwent FTF and VE in alternating order...
January 24, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30686688/does-the-hepatitis-c-virus-affect-the-outcomes-of-total-joint-arthroplasty-a-meta-analysis-of-ten-studies
#12
Wuzeng Wei, Tianshen Liu, Jie Zhao, Bing Li, Shuai Li, Jun Liu
BACKGROUND: It is estimated that 3%-8% of orthopedic patients, many of whom may undergo lower extremity total joint arthroplasty (TJA), are infected with hepatitis C virus. However, the impact of this virus on total joint arthroplasty is still undefined. METHODS: Eligible studies were searched from electronic databases including PubMed, Web of Science, CNKI and OVID. Two researchers performed data extraction from eligible independently. Quality parameters and risk of bias in the included studies were assessed according to Cochrane's guidelines...
January 24, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30685093/scheuermann-s-disease-in-patients-15-40-years-old-a-study-to-determine-its-prevalence-and-its-relationship-with-age-and-sex-using-chest-radiographs-as-screening-tool
#13
Julio Urrutia, Felipe Narvaez, Pablo Besa, Arturo Meissner-Haecker, Clemente Rios, Cristobal Piza
BACKGROUND: There is insufficient knowledge of the epidemiology of Scheuermann's disease. The data available comes from estimations from young adults with obvious deformity, from studies evaluating children who may not have developed the deformity yet, or from older populations who can develop vertebral wedging secondary to other causes. We aimed to determine the prevalence of Scheuermann's disease in patients 15-40 years old using plain chest radiographs as a screening tool. METHODS: We evaluated 454 patients aged 15-40 years old studied using standing plain chest radiographs...
January 23, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30683452/differential-rod-contouring-on-thoracolumbar-lumbar-curvature-in-patients-with-adolescent-idiopathic-scoliosis-an-analysis-with-intraoperative-acquisition-of-three-dimensional-imaging
#14
Shoji Seki, Yasuhito Yahara, Hiroto Makino, Kenji Kobayashi, Masato Nakano, Norikazu Hirano, Kei Watanabe, Jun Takahashi, Yoshiharu Kawaguchi, Tomoatsu Kimura
BACKGROUND: Differential rod contouring (DRC) is useful for periapical vertebral derotation and decreasing rib hump in patients with thoracic adolescent idiopathic scoliosis (AIS). However, it is unknown whether DRC in the thoracolumbar/lumbar spine also contributes to derotation. We assessed the contributions of rod contouring and of DRC to the reduction of apical axial vertebral body rotation in patients with AIS with thoracolumbar/lumbar curvatures. METHODS: Forty-five (Lenke type 3 or 4, 17; Lenke type 5 or 6, 28) were analyzed for the contribution of DRC to thoracolumbar/lumbar spinal derotation...
January 22, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30679080/spinal-fractures-in-patients-with-diffuse-idiopathic-skeletal-hyperostosis-a-nationwide-multi-institution-survey
#15
Eijiro Okada, Toshitaka Yoshii, Tsuyoshi Yamada, Kei Watanabe, Keiichi Katsumi, Akihiko Hiyama, Masahiko Watanabe, Yukihiro Nakagawa, Motohiro Okada, Teruaki Endo, Yasuyuki Shiraishi, Kazuhiro Takeuchi, Shunji Matsunaga, Keishi Maruo, Kenichiro Sakai, Sho Kobayashi, Tetsuro Ohba, Kanichiro Wada, Junichi Ohya, Kanji Mori, Mikito Tsushima, Hirosuke Nishimura, Takashi Tsuji, Atsushi Okawa, Morio Matsumoto, Kota Watanabe
BACKGROUND: Diffuse idiopathic skeletal hyperostosis (DISH) increases the spine's susceptibility to unstable fractures that can cause neurological deterioration. However, the detail of injury is still unclear. A nationwide multicenter retrospective study was conducted to assess the clinical characteristics and radiographic features of spinal fractures in patients with DISH. METHODS: Patients were eligible for this study if they 1) had DISH, defined as flowing ossification along the anterolateral aspect of at least four contiguous vertebral bodies, and 2) had an injury in the ankylosing spine...
January 21, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30642727/patient-reported-outcomes-after-high-tibial-osteotomy-show-comparable-results-at-different-ages-in-the-mid-term-to-long-term-follow-up
#16
Umito Kuwashima, Ken Okazaki, Kenyu Iwasaki, Yukio Akasaki, Hideya Kawamura, Hideki Mizu-Uchi, Satoshi Hamai, Yasuharu Nakashima
BACKGROUND: Few studies have evaluated the impact of age on patient-reported outcomes in the long-term follow-up after high tibial valgus osteotomy (HTO). The purpose of this study is to assess the association between age at surgery and patient-reported clinical outcomes in the mid-term to long-term follow-up of HTO. MATERIALS AND METHODS: We mailed the 2011 Knee Society score (KSS) questionnaires to 234 consecutive patients (295 knees) who had undergone closing-wedge HTO, and 158 patients (202 knees, 68...
January 11, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30642726/modic-changes-in-the-cervical-spine-prospective-20-year-follow-up-study-in-asymptomatic-subjects
#17
Takashi Tsuji, Hirokazu Fujiwara, Yuji Nishiwaki, Kenshi Daimon, Eijiro Okada, Kenya Nojiri, Masahiko Watanabe, Hiroyuki Katoh, Kentaro Shimizu, Hiroko Ishihama, Nobuyuki Fujita, Masaya Nakamura, Morio Matsumoto, Kota Watanabe
BACKGROUND: Few studies have characterized the development of Modic changes in the cervical spine over time. We evaluated Modic changes of the cervical spine that developed over a 20-year period in a healthy cohort, and sought to clarify the relationship between Modic changes and the development of clinical symptoms. METHODS: For this multicenter prospective cohort study, we recruited 193 subjects from an original cohort of asymptomatic volunteers who underwent MRI of the cervical spine between 1993 and 1996...
January 11, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30638970/changes-in-postoperative-extension-angle-after-total-knee-arthroplasty-effect-of-polyethylene-insert-thickness
#18
Yuichi Kishimura, Yoshio Matsui, Masanori Matsuura, Noriaki Hidaka
BACKGROUND: Flexion contracture is a serious complication after total knee arthroplasty (TKA). Polyethylene insert (PE) thicker than the extension gap during surgery causes flexion contracture. The purpose of this study was to identify the changes over time in postoperative extension angle and the correlation between extension gap and PE thickness. METHODS: Overall, 127 knees were analyzed to evaluate the changes in extension angle over time. "Gap difference" was defined as the distance obtained by subtracting the extension gap from the PE thickness...
January 10, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30638969/representative-survey-of-frozen-shoulder-questionnaire-responses-from-the-japan-shoulder-society-what-are-the-appropriate-diagnostic-terms-for-primary-idiopathic-frozen-shoulder-stiff-shoulder-or-frozen-shoulder
#19
Tsutomu Kobayashi, Hiroshi Karasuno, Hirotaka Sano, Junichiro Hamada, Katsumi Takase, Kazuya Tamai, Kenji Kashiwagi, Kenji Hayashida, Masafumi Gotoh, Nobuyuki Yamamoto, Toru Morihara, Yukihiko Hata, Yutaka Morisawa
BACKGROUND: Primary frozen shoulder has unknown etiology and significant restriction of active and passive motion. The distinction between frozen shoulder and stiff shoulder has been unclear. Therefore, the purposes of this study were to perform a survey regarding definition and classification of frozen shoulder proposed by the American Academy of Orthopedic Surgeons (AAOS) among the members of the Japan Shoulder Society (JSS) and to compare the results with those obtained among the members of the American Shoulder and Elbow Surgeons (ASES)...
January 10, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://read.qxmd.com/read/30638690/exploring-the-validation-of-a-japanese-version-of-the-international-hip-outcome-tool-12-reliability-validity-and-responsiveness
#20
Nobuyuki Watanabe, Satona Murakami, Soshi Uchida, Satoshi Tateishi, Hidetsugu Ohara, Yasuhiro Yamamoto, Taiki Kojima
BACKGROUNDS: The International Hip Outcome Tool 12 (iHOT12) was authorized by the Multicenter Arthroscopy of the Hip Outcomes Research Network (MAHORN). iHOT12 is increasingly being adopted in orthopedic studies to report patient outcomes. This study aimed to develop a Japanese version of the International Hip Outcome Tools "iHOT12J", and to establish its reliability, validity, and responsiveness. METHODS: To assess test-retest reliability, an identical set of patients reported outcome measures with five qualitative scoring measures including iHOT12; these were filled out by each patient twice...
January 9, 2019: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
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