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

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https://www.readbyqxmd.com/read/29459080/total-hip-arthroplasty-following-girdlestone-arthroplasty
#1
Satoshi Ikebe, Motoki Sonohata, Masaru Kitajima, Shunsuke Kawano, Masaaki Mawatari
BACKGROUND: Complications associated with re-implantation of total hip arthroplasty (THA) after resection arthroplasty for the treatment of primary septic hip arthritis or infected THA and bipolar hemiarthroplasty (BHA) are not well-documented. Furthermore, no comparison has been made between septic arthritis (SA) and infected THA and BHA. We divided subjects into two groups for evaluation: a SA group and an infected THA or BHA group. METHODS: Nineteen hips in 19 patients (12 in the SA group, 7 in the infected THA or BHA group) with an average of 77 months of follow-up from the time of re-implantation THA were retrospectively evaluated...
February 17, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29459084/a-screening-method-to-distinguish-syndromic-from-sporadic-spinal-extradural-arachnoid-cyst
#2
Yoji Ogura, Shoji Yabuki, Shunsuke Fujibayashi, Eijiro Okada, Akio Iwanami, Kota Watanabe, Masaya Nakamura, Morio Matsumoto, Ken Ishii, Shiro Ikegawa
BACKGROUND: Spinal extradural arachnoid cyst (SEDAC) is a cystic lesion that protrudes into the epidural space from a small dural defect. Early diagnosis of SEDAC is important because its expansion causes neurological damage. Two types of SEDAC, syndromic and sporadic, are present. Syndromic SEDAC is inherited as a part of lymphedema-distichiasis syndrome caused by mutations in the FOXC2 gene; however, it is often mistaken as sporadic because of low penetrance. It is not reasonable to conduct a genetic testing for all SEDAC patients and their family members...
February 16, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29459083/therapeutic-outcomes-of-muscular-advancement-by-an-arthroscopic-assisted-modified-debeyre-patte-procedure-for-irreparable-large-and-massive-rotator-cuff-tears
#3
Toru Morihara, Yoshikazu Kida, Ryuhei Furukawa, Tsuyoshi Sukenari, Yukichi Kabuto, Masao Kurokawa, Hiroyoshi Fujiwara, Toshikazu Kubo
BACKGROUND: In cases of the large or massive rotator cuff tears, retear rates after rotator cuff repairs remain high. We introduced an arthroscopic-assisted modified Debeyre-Patte procedure which enables to decrease the tension of torn rotator cuff by sliding supraspinatus and infraspinatus laterally keeping fascia connection to the rhomboids. PURPOSE: The objective of this study was to examine the clinical outcomes and retear rates after an arthroscopic-assisted modified Debeyre-Patte procedure for irreparable large and massive rotator cuff tears...
February 16, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29459082/ideal-screw-positions-for-multiple-screw-fixation-in-femoral-neck-fractures-study-of-proximal-femur-morphology-in-a-japanese-population
#4
Yuta Nakanishi, Takafumi Hiranaka, Masahiro Shirahama, Masafumi Uesugi, Kenjiro Okimura, Masanori Tsubosaka, Yousaku Shibata, Yuuichi Hida, Takaaki Fujishiro, Harunobu Uemoto
BACKGROUND: Despite the fact that multiple screw fixation is a common option of surgical treatment for femoral neck fractures, there is a paucity of precise morphological study of the femoral neck. To identify appropriate positions and spacing of hip screws for multiple-screw femoral neck fracture fixation, proximal femur morphology in Japanese patients was studied. METHOD: One hundred hips in fifty knee arthroplasty candidates were studied. Following full limb CT, defined slices were created and anatomical variables measured...
February 16, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29459081/changes-in-the-diagnosis-and-treatment-of-soft-tissue-sarcoma-in-japan-1977-2016
#5
REVIEW
Seiichi Matsumoto
The treatment of soft tissue tumors has maderemarkable progress through advancements in diagnostic imaging and analysis ofsurgical materials. Changes in the treatment of soft tissue tumors are describedfrom my experience since 1977. Prior to the introduction of CT scans, radiography and angiography were the only methods for tumor localization. Wholebody CT, echography, and soft tissue radiography were introduced around 1980,and significant progress was seen in the localization of soft tissue tumors.Although the localization and diagnostic characteristics of tumors becameeasier with the introduction of MRI, radiography and ultrasound still remainedthe primary diagnostic method for soft tissue tumors...
February 16, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29454546/corrigendum-to-manual-calf-massage-and-passive-ankle-motion-reduce-the-incidence-of-deep-vein-thromboembolism-after-total-hip-arthroplasty-j-orthop-sci-22-2017-726-730
#6
Norio Imai, Tomoyuki Ito, Ken Suda, Dai Miyasaka, Naoto Endo
No abstract text is available yet for this article.
February 15, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29454547/long-term-results-of-autologous-bone-marrow-mesenchymal-stem-cell-transplantation-for-cartilage-defects-in-the-patella-two-case-reports-with-more-than-18-years-of-follow-up
#7
Akira Tsujii, Kunihiko Hiramatsu, Kazunori Shimomura, Masato Kobayashi, Hisashi Mera, Shigeyuki Wakitani, Norimasa Nakamura, Shuji Horibe, Tomoki Mitsuoka
No abstract text is available yet for this article.
February 14, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29452792/clinical-and-radiological-features-of-spinal-extradural-arachnoid-cysts-valve-like-mechanism-involving-the-nerve-root-fiber-as-a-possible-cause-of-cyst-expansion
#8
Kazuaki Morizane, Shunsuke Fujibayashi, Bungo Otsuki, Takeshi Sakamoto, Ryosuke Tsutsumi, Seiichi Odate, Akira Kusuba, Shuichi Matsuda
BACKGROUND: Although a valve-like mechanism has been proposed for expansion of spinal extradural arachnoid cysts (SEACs), the detailed mechanism remains unclear. Moreover, closure of the communication site is essential during surgery, but the method to identify the communication site remains unclear. The aim of this study was to determine the detailed mechanism of expanding SEACs through retrospective analysis of SEAC cases undergoing surgery and to elucidate the characteristics of the communication sites...
February 13, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29429890/response-evaluation-of-giant-cell-tumor-of-bone-treated-by-denosumab-histogram-and-texture-analysis-of-ct-images
#9
Jisook Yi, Young Han Lee, Sang Kyum Kim, Seung Hyun Kim, Ho-Taek Song, Kyoo-Ho Shin, Jin-Suck Suh
BACKGROUND: This study aimed to compare computed tomography (CT) features, including tumor size and textural and histogram measurements, of giant-cell tumors of bone (GCTBs) before and after denosumab treatment and determine their applicability in monitoring GCTB response to denosumab treatment. METHODS: This retrospective study included eight patients (male, 3; female, 5; mean age, 33.4 years) diagnosed with GCTB, who had received treatment by denosumab and had undergone pre- and post-treatment non-contrast CT between January 2010 and December 2016...
February 8, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29429889/comparison-with-the-osteoconductivity-and-bone-bonding-ability-of-the-iodine-supported-titanium-titanium-with-porous-oxide-layer-and-the-titanium-alloy-in-the-rabbit-model
#10
Tadashi Taga, Tamon Kabata, Yoshitomo Kajino, Daisuke Inoue, Takaaki Ohmori, Takashi Yamamoto, Tomoharu Takagi, Hiroyuki Tsuchiya
BACKGROUND: One of the serious postoperative complications associated with joint replacement is bacterial infection. In our recent investigations, iodine supported titanium implants demonstrated antibacterial activity in both in vitro and in vivo studies. The surfaces of the implants have porous anodic oxide layer with the antiseptic properties of iodine. According to the literature the titanium with porous anodic oxide have good osteoconductivity. But it is not clear whether the properties of iodine influence bone bonding of implants...
February 8, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29429888/risk-factors-for-local-recurrence-after-total-en-bloc-spondylectomy-for-metastatic-spinal-tumors-a-retrospective-study
#11
Takashi Igarashi, Hideki Murakami, Satoru Demura, Satoshi Kato, Katsuhito Yoshioka, Noriaki Yokogawa, Hiroyuki Tsuchiya
BACKGROUND: The aim of this study was to evaluate local recurrence and survival outcomes after frozen autograft total en bloc spondylectomy for metastatic spinal tumors. METHODS: We retrospectively analyzed data from 91 patients with metastatic spinal tumors who underwent frozen autograft total en bloc spondylectomy at our institution between May 2010 and April 2015. We assessed the incidence, primary cancer type, and sites of local recurrence. Risk factors for local recurrence were also examined through the statistical analysis of 17 items, including clinico-pathological characteristics, treatment history, and preoperative or surgical complications...
February 8, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29428827/anterior-subluxation-of-the-glenohumeral-joint-during-hyperextension
#12
Kazuaki Suzuki, Junichirou Hamada, Yoshihiro Hagiwara
No abstract text is available yet for this article.
February 7, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29395805/contribution-to-the-aged-society-prevention-of-osteoporotic-fragility-fractures-in-the-elderly
#13
EDITORIAL
Naoto Endo
No abstract text is available yet for this article.
January 30, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29395806/a-comparative-study-of-2-year-follow-up-outcomes-in-lumbar-spinal-stenosis-patients-treated-with-physical-therapy-alone-and-those-with-surgical-intervention-after-less-successful-physical-therapy
#14
Masakazu Minetama, Mamoru Kawakami, Masafumi Nakagawa, Yuyu Ishimoto, Keiji Nagata, Daisuke Fukui, Tadashi Sumiya, Tomoko Kitagawa, Takahiro Miyake, Yoshio Yamamoto, Nana Sakon, Toshiko Matsuoka, Yukihiro Nakagawa
BACKGROUND: The efficacy of physical therapy for patients with lumbar spinal stenosis (LSS) has been reported only for the short term, and few reports have compared outcomes of surgical treatment with nonsurgical treatment after physical therapy. The purpose of this study was to assess 2-year outcomes of LSS patients treated with surgery or under follow-up observation after physical therapy for 6 weeks. METHODS: Patients presenting with neurogenic claudication, radiologically-confirmed central LSS affecting both legs and refractory symptoms to pharmacotherapy of more than 3 months were enrolled...
January 29, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29395807/the-distal-margin-of-the-lateral-malleolus-visible-under-ankle-arthroscopy-articular-tip-from-the-anteromedial-portal-is-separate-from-the-atfl-attachment-site-of-the-fibula-a-cadaver-study
#15
Atsushi Teramoto, Hiroaki Shoji, Yuzuru Sakakibara, Tomoyuki Suzuki, Kota Watanabe, Toshihiko Yamashita
PURPOSE: The purpose of this study was to evaluate the relationship between the lateral malleolus view under ankle arthroscopy and the anterior talofibular ligament (ATFL) attachment site. METHODS: Seven normal ankles from Thiel-embalmed cadavers were investigated. Ankle arthroscopy was performed using a 2.7 mm-diameter, 30-degree, oblique-viewing endoscope. An antero-medial portal (AM), a medial midline portal (MML), and an antero-central portal (AC) were created in order, and the ankle arthroscope was inserted...
January 22, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29366631/preoperative-evaluation-of-intraoperative-blood-loss-during-malignant-soft-tissue-tumor-resection-by-ultrasonography
#16
Takeshi Morii, Tomonori Kishino, Naoko Shimamori, Mitsue Motohashi, Hiroaki Ohnishi, Keita Honya, Takayuki Aoyagi, Takashi Tajima, Shoichi Ichimura
BACKGROUND: Preoperative evaluation of the risk of surgery-related blood loss in malignant soft tissue tumor resection is difficult because of wide variations in histological subtype, malignancy, location, and size. Ultrasonography is useful for the evaluation of blood flow around a soft tissue tumor and has the potential to preoperatively estimate intraoperative blood loss in tumor resection. To date, there has been no report regarding blood loss evaluation using ultrasonography in this field...
January 20, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29361376/diagnosis-and-treatment-of-slipped-capital-femoral-epiphysis-recent-trends-to-note
#17
Takuya Otani, Yasuhiko Kawaguchi, Keishi Marumo
Slipped capital femoral epiphysis (SCFE) is not frequently encountered during routine practice and diagnosis and treatment are often delayed. It is important to understand symptoms and imaging features to avoid delayed diagnosis. After the diagnosis is made correct classification of the disease is required. The classification should be based on the physeal stability in order to choose safe and effective treatment. However, surgeons should bear in mind that the assessment is challenging and actual physeal stability is not always consistent with the stability predicted by a clinical classification method...
January 17, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29361375/arthroscopic-soft-tissue-interposition-arthroplasty-of-the-glenohumeral-joint-for-ochronotic-arthropathy-a-case-report
#18
Tundi T J Schouten, Rogier A Oldenburg, Paulien M van Kampen, Pol E Huijsmans
No abstract text is available yet for this article.
January 17, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29352625/unilateral-repetitive-tibial-nerve-stimulation-improves-neurogenic-claudication-and-bilateral-f-wave-conduction-in-central-lumbar-spinal-stenosis
#19
Noritsuna Nakajima, Toshikazu Tani, Katsuhito Kiyasu, Masashi Kumon, Shinichirou Taniguchi, Ryuichi Takemasa, Nobuaki Tadokoro, Kazuya Nishida, Masahiko Ikeuchi
BACKGROUND: Repetitive electrical nerve stimulation of the lower limb may improve neurogenic claudication in patients with lumbar spinal stenosis (LSS) as originally described by Tamaki et al. We tested if this neuromodulation technique affects the F-wave conduction on both sides to explore the underlying physiologic mechanisms. METHODS: We studied a total of 26 LSS patients, assigning 16 to a study group receiving repetitive tibial nerve stimulation at the ankle (RTNS) on one leg, and 10 to a group without RTNS...
January 15, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29338908/relationship-between-neuropathy-proximal-to-the-suprascapular-nerve-and-rotator-cuff-tear-in-a-rodent-model
#20
Yasuhito Sasaki, Nobuyasu Ochiai, Eiko Hashimoto, Yu Sasaki, Takeshi Yamaguchi, Takehiro Kijima, Koji Akimoto, Seiji Ohtori, Kazuhisa Takahashi
BACKGROUND: Rotator cuff tears are believed to coexist with cervical spine lesions. In cases of preexisting neuropathy, such as cervical spine lesions, fatty degeneration has likely already occurred due to the neuropathy. In these cases, rotator cuff tear is thought to occur easily because of preexisting extensive fatty degeneration and degeneration of the tendons due to neuropathy. This study aimed to evaluate the effects of paralysis due to neuropathy proximal to the suprascapular nerve on the supraspinatus and infraspinatus tendons using a rat model of brachial plexus paralysis...
January 12, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
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