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

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https://www.readbyqxmd.com/read/28431805/lumbar-disc-degeneration-progression-in-young-women-in-their-20-s-a-prospective-ten-year-follow-up
#1
Hiroto Makino, Yoshiharu Kawaguchi, Shoji Seki, Masato Nakano, Taketoshi Yasuda, Kayo Suzuki, Shiro Ikegawa, Tomoatsu Kimura
BACKGROUND: Lumbar disc degeneration (LDD) is known to be the main cause of low back pain, although it is unclear how or when LDD progresses. The purpose of this study was to clarify the process and features of LDD progression in young women. METHODS: We enrolled 480 nursing students and carried out a prospective cohort study in 84 nursing students. MRI of the lumbar spine was taken once during their time as a student and again at 9.8 years (7-14) after the first MRI when they were working as nurses...
April 18, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28431804/prognostic-value-of-dynamic-mri-positive-enhancement-integral-color-mapping-in-osteosynthesis-of-undisplaced-femoral-neck-fractures
#2
Masatoshi Morimoto, Yoshinori Takahashi, Takahiro Kubo, Kosuke Sugiura, Yasuaki Tamaki, Shunichi Toki, Katsuyoshi Suganuma, Kazumasa Inoue, Keisuke Adachi, Takashi Chikawa, Koichi Sairyo, Akihiro Nagamachi
AIMS: The common treatment for an undisplaced femoral neck fracture is osteosynthesis. Two major complications of osteosynthesis are non-union and late collapse of the femoral head. We speculated that femoral head perfusion is one of the most important factors that affect the outcome of osteosynthesis after femoral neck fracture. We have preoperatively estimated femoral head perfusion by dynamic MRI positive enhancement integral color mapping (PEICM). The purpose of this study was to evaluate the outcomes of undisplaced femoral neck fractures based on PEICM...
April 18, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28420562/progression-of-untreated-mild-thoracic-scheuermann-s-kyphosis%C3%A2-%C3%A2-radiographic-and-functional-assessment-after-mean-follow-up-of-46%C3%A2-years
#3
Leena Ristolainen, Jyrki A Kettunen, Urho M Kujala, Ari Heinonen, Dietrich Schlenzka
BACKGROUND: There is no data available on the radiographic development of the Scheuermann's deformity. Our purpose was to investigate radiographic deformity progression and the relation between kyphosis progression and clinical outcome in patients with untreated Scheuermann's kyphosis. METHODS: Thoracic kyphosis (Th4-Th12) was measured from standing lateral radiographs in 19 patients at baseline and after mean 46-year follow-up. Mean age at baseline was 19.2 and at follow-up 64...
April 15, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28416189/the-validity-and-reliability-of-the-arabic-version-of-the-japanese-orthopedic-association-back-pain-evaluation-questionnaire-can-we-implement-it-in-saudi-arabia
#4
Saud Mohammed Alfayez, Abdullah Nasser Bin Dous, Abdullah Abdulaziz Altowim, Qais Abdulmohsin Alrabiei, Bandar Obaid Alsubaie, Waleed Mohammad Awwad
BACKGROUND: The Japanese Orthopedic Association designed their back pain evaluation questionnaire (JOABPEQ) which was proven to be feasible, reliable and valid. The questionnaire's validity and reliability were confirmed when it was implemented in patients with different cultural background. Since the JOABPEQ still has not been utilized in any of the Arabic countries, we present the Arabic version with its validity and reliability. METHODS: After ensuring an optimal forward-backward translation of the JOABPEQ, the Arabic version was distributed among 151 patients visiting our clinics from December 2015 to February 2016...
April 13, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28416188/a-giraffe-neck-sign-of-the-medial-meniscus-a-characteristic-finding-of-the-medial-meniscus-posterior-root-tear-on-magnetic-resonance-imaging
#5
Takayuki Furumatsu, Masataka Fujii, Yuya Kodama, Toshifumi Ozaki
BACKGROUND: The posterior root ligament of the medial meniscus (MM) has a critical role in regulating the MM movement. An accurate diagnosis of the MM posterior root tear (MMPRT) using magnetic resonance imaging (MRI) is important for preventing sequential osteoarthritis following the MMPRT. However, diagnosis of the MMPRT is relatively difficult even after using several characteristic MRI findings. The aim of this study was to identify a useful meniscal body sign of the MMPRT for improving diagnostic MRI reading...
April 13, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28412026/primary-bone-sarcomas-in-patients-over-40-years-of-age-a-retrospective-study-using-data-from-the-bone-tumor-registry-of-japan
#6
Akihito Nagano, Daichi Ishimaru, Yutaka Nishimoto, Haruhiko Akiyama, Akira Kawai
BACKGROUND: Optimal treatments of patients aged >40 years with osteosarcoma and Ewing sarcoma and of patients with other types of bone sarcoma have not yet been established. METHODS: The clinical characteristics of 746 patients with primary bone sarcomas aged >40 years listed in the nationwide tumor registry (Bone and Soft Tissue Tumor Registry of Japan) were investigated. Patients with Ewing sarcoma, conventional chondrosarcoma, multiple myeloma, and malignant lymphoma were excluded...
April 12, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28408156/quadriceps-muscle-strength-reference-value-as-index-for-functional-deterioration-of-locomotive-organs-data-from-3617-men-and-women-in-japan
#7
Kentaro Narumi, Yuya Funaki, Noriko Yoshimura, Shigeyuki Muraki, Go Omori, Atsushi Nawata, Ryoichi Seki
BACKGROUND: Quadriceps muscle strength reference value of normal individuals in Japan is necessary to quantitatively evaluate functional deterioration of locomotive organs. Therefore, we established a reference value by using the Locomo Scan, a new device that measures knee extension muscle strength. METHODS: We measured knee extension muscle strength with the Locomo Scan in 3617 individuals (1692 men, 1925 women, 20-89 years; mean age. 50.7 years) by implementing our own 49 measurement events in 20 prefectures...
April 10, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28392347/predictors-of-improvement-in-low-back-pain-after-lumbar-decompression-surgery-prospective-study-of-140-patients
#8
Hiroki Oba, Jun Takahashi, Takahiro Tsutsumimoto, Shota Ikegami, Hiroshi Ohta, Mutsuki Yui, Hidemi Kosaku, Takayuki Kamanaka, Hiromichi Misawa, Hiroyuki Kato
BACKGROUND: Lumbar decompression surgery is often used to treat neurological symptoms of the lower extremity as a result of lumbar disease. However, this method also leads to the improvement of the accompanying low back pain (LBP). We studied the extent of LBP improvement after lumbar decompression surgery without fusion and the associated preoperative factors. METHODS: Patients (n = 140) with lumbar spinal stenosis (n = 90) or lumbar disc herniation (n = 50) were included...
April 6, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28390756/screening-for-nasal-carriage-of-staphylococcus-aureus-among-patients-scheduled-to-undergo-orthopedic-surgery-incidence-of-surgical-site-infection-by-nasal-carriage
#9
Masaru Nakamura, Tateaki Shimakawa, Shunji Nakano, Takashi Chikawa, Shinji Yoshioka, Masahiro Kashima, Shunichi Toki, Koichi Sairyo
BACKGROUND: Staphylococcus aureus (S. aureus), including MRSA, is considered to be the leading cause of surgical site infection (SSI) after orthopedic surgery. We screened for nasal carriers of S. aureus among patients who were scheduled to undergo orthopedic surgery at our hospital to reveal the effect of nasal S. aureus carriage on SSI. Our study design clearly has the intent of finding S. aureus nasal carriage and eradicating MRSA when found, and this strategy is to verify whether it's effective for preventing orthopedic surgical infections...
April 5, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28390755/persistent-noise-after-ceramic-on-ceramic-total-hip-replacement-due-to-bearing-coupling-size-mismatch-a-case-report
#10
Chee-Ken Chan, Dong-Hyun Lee, Taek-Rim Yoon, Kyung-Soon Park
No abstract text is available yet for this article.
April 5, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28366654/posterior-short-fusion-without-neural-decompression-using-pedicle-screws-and-spinous-process-plates-a-simple-and-effective-treatment-for-neurological-deficits-following-osteoporotic-vertebral-collapse
#11
Atsushi Nakano, Choman Ryu, Ichiro Baba, Takashi Fujishiro, Yoshiharu Nakaya, Masashi Neo
BACKGROUND: The optimal treatment of neurological deficits following osteoporotic vertebral collapse (OVC) is controversial, owing to complications that result from fragile bone quality. In the present study, we assessed surgical results following posterior spinal fusion without decompression. We achieved stable fusion over a short segment of the spinal column using pedicle screws and spinous process plates, maximizing the use of the preserved posterior elements. METHODS: We reviewed surgical data, perioperative complications, clinical outcomes, and radiographic data of 20 consecutively recruited patients with delayed neurological deficits following OVC, who experienced posterior short fusion without neural decompression...
March 30, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28365167/outcomes-of-the-ilizarov-frame-use-in-elderly-patients
#12
Efthymios Iliopoulos, Natasha Morrissey, Seok Cho, Arshad Khaleel
AIM: The use of circular frame is widely accepted. This is an outcome review on use of circular Ilizarov frame in elderly patients. MATERIALS & METHODS: Data from all patients treated with an Ilizarov circular frame between January 2002 and December 2014, who were 65 years of age or over at surgery was collected. Seventy Ilizarov circular frames were applied during this period in our unit at a mean age of 71.2 years. Clinical, radiological and quality of life questionnaire (SF-12) data were gathered...
March 30, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28365168/verification-of-the-sensitivity-of-functional-scores-for-treatment-results-substantial-clinical-benefit-thresholds-for-the-japanese-orthopaedic-association-back-pain-evaluation-questionnaire-joabpeq
#13
Yuichi Kasai, Mitsuru Fukui, Kazuhisa Takahashi, Seiji Ohtori, Daisaku Takeuchi, Hiroshi Hashizume, Masahiko Kanamori, Noboru Hosono, Tsukasa Kanchiku, Eiji Wada, Miho Sekiguchi, Shinichi Konno, Mamoru Kawakami
BACKGROUND: Validity and reliability of the Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ) had already been verified as the patients' self-rating assessment of low back pain and lumbar spinal disease and, the present study demonstrated the responsiveness of this measure. METHODS: 192 subjects who were determined by medical instructors of the Japanese Society for Spine Surgery and Related Research were analyzed. They had completed a series of treatment and both surveys before and after the treatment...
March 29, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28356215/successful-treatment-of-adult-pleomorphic-rhabdomyosarcoma-with-bone-invasion-in-the-lower-leg-by-chemotherapy-and-biological-reconstruction-a-case-report
#14
Atsushi Tanaka, Yasuo Yoshimura, Takashige Momose, Ken'ichi Isobe, Kaoru Aoki, Munehisa Kito, Masanori Okamoto, Shuichiro Suzuki, Kenji Sano, Hiroyuki Kato
No abstract text is available yet for this article.
March 26, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28351717/centralization-of-extruded-medial-meniscus-delays-cartilage-degeneration-in-rats
#15
Nobutake Ozeki, Takeshi Muneta, Kenici Kawabata, Hideyuki Koga, Yusuke Nakagawa, Ryusuke Saito, Mio Udo, Katsuaki Yanagisawa, Toshiyuki Ohara, Tomoyuki Mochizuki, Kunikazu Tsuji, Tomoyuki Saito, Ichiro Sekiya
BACKGROUND: Meniscus extrusion often observed in knee osteoarthritis has a strong correlation with the progression of cartilage degeneration and symptom in the patients. We recently reported a novel procedure "arthroscopic centralization" in which the capsule was sutured to the edge of the tibial plateau to reduce meniscus extrusion in the human knee. However, there is no animal model to study the efficacy of this procedure. The purposes of this study were [1] to establish a model of centralization for the extruded medial meniscus in a rat model; and [2] to investigate the chondroprotective effect of this procedure...
March 25, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28343749/manual-calf-massage-and-passive-ankle-motion-reduce-the-incidence-of-deep-vein-thromboembolism-after-total-hip-arthroplasty
#16
Norio Imai, Tomoyuki Ito, Ken Suda, Dai Miyasaka, Naoto Endo
BACKGROUND: Venous thromboembolism is one of the general complications following total hip arthroplasty, wherein various preventive treatments have been recommended. Several studies reported that venous thromboembolism incidence after total hip arthroplasty was similar in patients who were administered prophylaxis with a conventional mechanical procedure alone, and those who were administered pharmacological anticoagulation therapy. Therefore, the optimum methods of prophylaxis are still controversial...
March 24, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28342696/measurement-of-change-on-medial-and-lateral-joint-gaps-by-navigation-system-in-multi-radius-ps-tka
#17
Yeesuk Kim, Jin Kyu Lee, Kyu-Sung Chung, Doo-Yeon Lee, Choong Hyeok Choi
BACKGROUND: The purpose of this study was to evaluate the joint gap kinematics in posterior-stabilized total knee arthroplasty (PS TKA). METHODS: Between January 2010 and April 2011, 44 consecutive patients (55 knees) who underwent primary PS TKA using the navigation system were assessed. There were 37 women and 7 men with a mean age at operation of 63 years (range; 58-73 years). After fixation of all components with cement and insertion of polyethylene trial insert, medial and lateral joint gap measurements were carried out without distraction force and separately using a navigation system on each flexion angles...
March 22, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28342695/in%C3%A2-vivo-serum-concentration-of-vancomycin-in-antibiotic-loaded-acrylic-cement-for-the-treatment-and-prevention-of-periprosthetic-hip-infection
#18
Kenichi Oe, Hirokazu Iida, Narumi Ueda, Tomohisa Nakamura, Naofumi Okamoto, Yusuke Ueda
BACKGROUND: Although antibiotic-loaded acrylic cement (ALAC) is used to prevent and treat periprosthetic hip infection, it is unknown how much antibiotic is deposited in the body in vivo, how high the serum concentration rises, or how long its effects last. The aim of this study was firstly to determine the amount of vancomycin (VCM) deposited as ALAC in the body, and secondly to assess the safety and drug elution profile of VCM in ALAC. METHODS: We administered VCM to prevent infection after total hip arthroplasty (THA) or to treat patients with methicillin-resistant Staphylococcus aureus...
March 22, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28341088/the-latest-treatment-strategy-for-the-rheumatoid-hand-deformity
#19
Hajime Ishikawa
With a remarkable improvement in the pharmacotherapy of rheumatoid arthritis (RA), severely handicapped patients are very rare to see. Healing, repair and drug-free, and toward radical cure are coming to be possible. In the clinical practice, more than 50% of the patients are in remission. However, some patients are still difficult to reach remission due to comorbidities and economic burden. In the patient with clinical remission, smoldering synovitis so called "silent destructor" is often detected by ultrasonograpy or by synovial histology in the small joints of the hand...
March 22, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28336192/radiological-morphology-variances-of-transient-osteoporosis-of-the-hip
#20
Ryosuke Yamaguchi, Takuaki Yamamoto, Goro Motomura, Satoshi Ikemura, Kenyu Iwasaki, Garida Zhao, Yukihide Iwamoto
BACKGROUND: Although several morphological abnormalities or variances of the hip joint have been proposed to be associated with hip joint degeneration, few studies have investigated any radiological features in patients with transient osteoporosis of the hip (TOH). The purpose of this study is to evaluate the morphological variances of the hip joint in TOH patients radiographically. METHODS: The TOH group consisted of 31 hips in 31 patients. Age- and gender-matched asymptomatic hips in patients with unilateral osteonecrosis of the femoral head were served as controls...
March 20, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
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