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JaLCDOI 10.18926/AMO/50412
FullText URL 67_3_185.pdf
Author Misawa, Haruo| Tanaka, Masato| Sugimoto, Yoshihisa| Koshimune, Kouichiro| Ozaki, Toshifumi|
Abstract Cervical misalignment after upper cervical fusion including the occipital bone may cause trismus or dysphagia, because the occipito-atlanto joint is associated with most of the flex and extended motion of the cervical spine. There are no reports of dysphagia and trismus after C1-2 fusion. The purpose of this paper is to demonstrate the potential risk of dysphagia and trismus even after upper cervical short fusion without the occipital bone. The patient was a 69-year-old man with myelopathy caused by os odontoideum and Klippel-Feil syndrome, who developed dysphagia and trismus immediately after C1-2 fusion and C3-6 laminoplasty. Radiographs and CT revealed that his neck posture was extended, but his symptoms still existed a week after surgery. The fixation angle was hyperextended 12 days after the first surgery. His symptoms disappeared immediately after revision surgery. The fixation in the neck-flexed position is thought to be the main cause of the patientʼs post-operative dysphagia and trismus. Dysphagia and trismus may occur even after short upper cervical fusion without the occipital bone or cervical fusion in the neck-extended position. The pre-operative cervical alignment and range of motion of each segment should be thoroughly evaluated.
Keywords dysphagia trismus os odontoid Klippel-Feil syndrome atlantoaxial posterior fusion
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2013-06
Volume volume67
Issue issue3
Publisher Okayama University Medical School
Start Page 185
End Page 190
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2013 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23804142
Web of Science KeyUT 000320747900008
JaLCDOI 10.18926/AMO/49672
FullText URL 67_2_123.pdf
Author Tanabe, Shunsuke| Shirakawa, Yasuhiro| Takehara, Yuko| Maeda, Naoaki| Katsube, Ryoichi| Ohara, Toshiaki| Sakurama, Kazufumi| Noma, Kazuhiro| Fujiwara, Toshiyoshi|
Abstract An 80-year-old woman, who had been administered α-glucosidase inhibitor for diabetes, was brought to the hospital with the sensation of abdominal fullness and pain. Abdominal computed tomography indicated pneumatosis cystoides intestinalis (PCI) in the small intestinal wall, with free air within the abdomen. A blood examination showed no increases in white blood cells or C-reactive protein level. The patientʼs condition improved with conservative therapy. PCI with pneumoperitoneum induced by α-glucosidase inhibitor is rare, with only 27 cases (excluding the present case) reported in Japan to date. In PCI with pneumoperitoneum, differentiation from gastrointestinal perforation is important and following the clinical symptoms over time is vital.
Keywords pneumatosis cystoides intestinalis pneumoperitoneum α-glucosidase inhibitor
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2013-04
Volume volume67
Issue issue2
Publisher Okayama University Medical School
Start Page 123
End Page 128
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2013 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23603930
Web of Science KeyUT 000317801700008
JaLCDOI 10.18926/AMO/49671
FullText URL 67_2_117.pdf
Author Sadamori, Hiroshi| Yagi, Takahito| Shinoura, Susumu| Umeda, Yuzo| Yoshida, Ryuichi| Sato, Daisuke| Nobuoka, Daisuke| Utsumi, Masashi| Fujiwara, Toshiyoshi|
Abstract We present a case of living donor liver transplantation to a 3-year disease-free survivor of liver resection for hepatocellular carcinoma (HCC) with major portal vein invasion. A 48-year-old man had HCC in the right lobe with a portal venous tumor thrombus extending into the left portal vein. An extended right lobectomy with thrombectomy was performed to remove the thrombus. Three years after liver resection, the patient experienced liver failure, with massive ascites and jaundice due to the formation of a thrombus in the main and left portal veins. During the 3 years after liver resection, no metastasis or recurrence of HCC had been detected, and tumor markers had been within normal ranges. The portal venous thrombus did not show any arterial enhancement under contrast-enhanced computed tomography, suggesting that the co-existence of any HCC component in the portal venous thrombus may have been negative. Based on these findings, living donor liver transplantation was performed using a right lobe graft from the patientʼs son. The patient is alive at 87 months after the transplantation, with no evidence of HCC recurrence.
Keywords living donor liver transplantation hepatocellular carcinoma portal vein invasion liver resection
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2013-04
Volume volume67
Issue issue2
Publisher Okayama University Medical School
Start Page 117
End Page 121
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2013 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23603929
Web of Science KeyUT 000317801700007
JaLCDOI 10.18926/AMO/49670
FullText URL 67_2_113.pdf
Author Sugimoto, Yoshihisa| Tanaka, Masato| Gobara, Hideo| Misawa, Haruo| Kunisada, Toshiyuki| Ozaki, Toshifumi|
Abstract We report on 2 patients who experienced injury to one of their lumbar arteries related to pedicle screw misplacement. In this report, the lumbar pedicle screw holes were made laterally with resultant injury to the lumbar artery. During surgery, arterial bleeding was controlled with pressure and gauze; however, the patients experienced vital shock after surgery. Vital shock ensued and they were rescued by catheter embolization. If patients receiving lumbar instrumentation surgery experience severe anemia or vital shock postoperatively, the surgeon should assume lumbar artery injury as a differential diagnosis.
Keywords catheter embolization complication lumbar artery injury pedicle screw
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2013-04
Volume volume67
Issue issue2
Publisher Okayama University Medical School
Start Page 113
End Page 116
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2013 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23603928
Web of Science KeyUT 000317801700006
Author Inada, Ryo| Nagasaka, Takeshi| Mori, Yoshiko| Umeda, Yuzo| Kubota, Nobuhito| Morikawa, Tatsuya| Kondo, Yoshitaka| Uno, Futoshi| Sadamori, Yu| Yagi, Takahito| Fujiwara, Toshiyoshi|
Published Date 2013-04-01
Publication Title 岡山医学会雑誌
Volume volume125
Issue issue1
Content Type Journal Article
Author Inada, Ryo| Nagasaka, Takeshi| Takehara, Kiyoto| Sugihara, Masahiro| Mori, Yoshiko| Umeda, Yuzo| Kubota, Nobuhito| Morikawa, Tatsuya| Kondo, Yoshitaka| Uno, Futoshi| Sadamori, Yu| Yagi, Takahito| Fujiwara, Toshiyoshi|
Published Date 2013-04-01
Publication Title 岡山医学会雑誌
Volume volume125
Issue issue1
Content Type Journal Article
Author Uno, Futoshi| Fujiwara, Yasuhiro| Fujiwara, Toshiyoshi|
Published Date 2013-04-01
Publication Title 岡山医学会雑誌
Volume volume125
Issue issue1
Content Type Journal Article
Author Hagiya, Hideharu| Shiota, Sumiko| Miyoshi, Shin-ichi| Kuroe, Yasutoshi| Nojima, Hiroyoshi| Otani, Shinkichi| Sugiyama, Junichi| Naito, Hiromichi| Kawanishi, Susumu| Hagioka, Shingo| Morimoto, Naoki|
Published Date 2013-04-01
Publication Title 岡山医学会雑誌
Volume volume125
Issue issue1
Content Type Journal Article
JaLCDOI 10.18926/AMO/49259
FullText URL 67_1_65.pdf
Author Sakata, Kenichiro| Furumatsu, Takayuki| Abe, Nobuhiro| Miyazawa, Shinichi| Sakoma, Yoshimasa| Ozaki, Toshifumi|
Abstract Bone marrow-stimulating techniques such as microfracture and subchondral drilling are valuable treatments for full-thickness cartilage defects. However, marrow stimulation-derived reparative tissues are not histologically well-documented in human osteoarthritis. We retrospectively investigated cartilage repairs after marrow stimulation for the treatment of large cartilage defects in osteoarthritic knees. Tissues were obtained from patients who underwent total knee arthroplasty (TKA) after arthroscopic marrow stimulation in medial compartmental osteoarthritis. Clinical findings and cartilage repair were assessed. Sections of medial femoral condyles were histologically investigated by safranin O staining and anti-type II collagen antibody. Marrow stimulation decreased the knee pain in the short term. However, varus leg alignment gradually progressed, and TKA conversions were required. The grade of cartilage repair was not improved. Marrow stimulations resulted in insufficient cartilage regeneration on medial femoral condyles. Safranin O-stained proteoglycans and type II collagen were observed in the deep zone of marrow-stimulated holes. This study demonstrated that marrow stimulation resulted in failed cartilage repair for the treatment of large cartilage defects in osteoarthritic knees. Our results suggest that arthroscopic marrow stimulation might not improve clinical symptoms for the long term in patients suffering large osteoarthritic cartilage defects.
Keywords bone marrow stimulation microfracture subchondral drilling osteoarthritis of the knee cartilage repair
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2013-02
Volume volume67
Issue issue1
Publisher Okayama University Medical School
Start Page 65
End Page 74
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2013 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23439511
Web of Science KeyUT 000316829900009
JaLCDOI 10.18926/AMO/49258
FullText URL 67_1_61.pdf
Author Tachibana, Tomoyasu| Orita, Yorihisa| Fujisawa, Masayoshi| Ogawara, Yuya|
Abstract Thyroid carcinomas arising from ectopic thyroid tissue are uncommon;most of them arise from thyroid tissue in thyroglossal cysts. A rare case of a 66-year-old woman with papillary thyroid carcinoma arising from median ectopic thyroid tissue lacking a thyroglossal duct remnant is reported. The tumor was resected by Sistrunk's procedure, and the patient's postoperative course was good.
Keywords ectopic thyroid papillary thyroid carcinoma thyroglossal duct remnant
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2013-02
Volume volume67
Issue issue1
Publisher Okayama University Medical School
Start Page 61
End Page 64
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2013 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23439510
Web of Science KeyUT 000316829900008
JaLCDOI 10.18926/AMO/49257
FullText URL 67_1_55.pdf
Author Shimo, Tsuyoshi| Nishiyama, Akiyoshi| Jinno, Tokiari| Sasaki, Akira|
Abstract In this article, we report the successful surgical treatment of a patient, 34 years of age, who had a severe gummy smile and a class II malocclusion. The patient had an 11-mm gingival exposure during full smile and a convex profile. A LeFort I osteotomy combined with a horseshoe osteotomy was used for the superior repositioning of the maxilla;then, an intraoral vertical ramus osteotomy (IVRO) and genioplasty were performed for mandibular advancement. The maxilla was acceptably impacted 8mm at the first incisor and 5mm at the first molar. Both the occlusion and facial appearance were significantly improved by this surgical-orthodontic treatment. Our results suggest that the combination of a horseshoe osteotomy with a LeFort I osteotomy is a useful technique for reliable superior repositioning of the maxilla.
Keywords LeFort I osteotomy horseshoe osteotomy gummy smile
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2013-02
Volume volume67
Issue issue1
Publisher Okayama University Medical School
Start Page 55
End Page 60
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2013 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23439509
Web of Science KeyUT 000316829900007
JaLCDOI 10.18926/AMO/49047
FullText URL 66_6_499.pdf
Author Sugimoto, Yoshihisa| Tanaka, Masato| Nakahara, Ryuichi| Misawa, Haruo| Kunisada, Toshiyuki| Ozaki, Toshifumi|
Abstract An 11 year-old girl had 66 degrees of kyphosis in the thoracolumbar junction. For the purpose of planning for kyphosis correction, we created a 3-D, full-scale model of the spine and consulted spinal navigation. Three-dimensional models are generally used as tactile guides to verify the surgical approach and portray the anatomic relations specific to a given patient. We performed posterior fusion from Th10 to L3, and vertebral column resection of Th12 and L1. Screw entry points, directions, lengths and diameters were determined by reference to navigation. Both tools were useful in the bone resection. We could easily detect the posterior element to be resected using the 3D model. During the anterior bony resection, navigation helped us to check the disc level and anterior wall of the vertebrae, which were otherwise difficult to detect due to their depth in the surgical field. Thus, the combination of navigation and 3D models helped us to safely perform surgery for a patient with complex spinal deformity.
Keywords congenital scoliosis kyphosis navigation 3-dimensional models
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2012-12
Volume volume66
Issue issue6
Publisher Okayama University Medical School
Start Page 499
End Page 502
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2012 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23254585
Web of Science KeyUT 000312966100010
JaLCDOI 10.18926/AMO/49046
FullText URL 66_6_493.pdf
Author Matsuo, Toshihiko|
Abstract Acute retinal necrosis syndrome (ARNS) is a herpetic infectious eye disease that presents clinicians with difficult decisions to make about the indication and timing of surgical intervention. Here I report 2 patients who underwent prophylactic and early vitrectomy with good visual outcomes. Case 1, a 72-year-old man, had a second recurrence of ARNS in the left eye in 2011 and underwent early vitrectomy in the acute inflammatory phase to remove previously formed vitreous opacity and vitreoretinal adhesions, in parallel with intravenous acyclovir and oral prednisolone administration. He had experienced ARNS in the right eye in 1983, in the left eye in 1986, and a recurrence in the left eye in 1999. Case 2, a 66-year-old woman, developed ARNS in the right eye. All of the circumferential retinal lesions became degenerative with intravenous acyclovir and prednisolone. She underwent a vitrectomy in the post-inflammatory phase, since epiretinal proliferation was noted through vitreous opacity with complete posterior vitreous detachment. These cases suggest that early vitrectomy in the acute inflammatory phase would be indicated for pre-existing vitreoretinal adhesions, while prophylactic vitrectomy in the post-inflammatory phase would be indicated for epiretinal proliferation.
Keywords acute retinal necrosis syndrome (ARNS) early vitrectomy epiretinal proliferation prophylactic vitrectomy herpetic retinitis
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2012-12
Volume volume66
Issue issue6
Publisher Okayama University Medical School
Start Page 493
End Page 497
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2012 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23254584
Web of Science KeyUT 000312966100009
JaLCDOI 10.18926/AMO/49045
FullText URL 66_6_487.pdf
Author Agari, Takashi| Mihara, Tadahiro| Baba, Koichi| Kobayashi, Katsuhiro| Usui, Naotaka| Terada, Kiyohito| Nakamura, Fumihiro| Matsuda, Kazumi| Date, Isao|
Abstract We report on a case of successful surgical treatment of drug-resistant epilepsy associated with a solitary lesion of periventricular nodular heterotopia (PNH). In the reported patient, intracranial ictal electroencephalography disclosed that seizures did not originate from the heterotopic nodules. However, the seizures were completely suppressed by lesionectomy of PNH alone. Epileptogenesis associated with PNH likely involves a very complex network between PNH and the surrounding cortex, and the disruption of this network may be an effective means of curing intractable, PNH-associated epilepsy.
Keywords periventricular nodular heterotopia epilepsy surgery ictal electroencephalography
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2012-12
Volume volume66
Issue issue6
Publisher Okayama University Medical School
Start Page 487
End Page 492
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2012 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23254583
Web of Science KeyUT 000312966100008
Author Kanzaki, Hiromitsu| Nouso, Kazuhiro| Miyahara, Koji| Kajikawa, Naoko| Kobayashi, Sayo| Sakakihara, Ichiro| Iwadow, Shota| Uematsu, Shuji| Okamoto, Ryoichi| Shiraga, Kunihiro| Mizuno, Motowo| Araki, Yasuyuki|
Published Date 2009-09-01
Publication Title Cases Journal
Volume volume2
Content Type Journal Article
Author Imada, Takako| Matsuoka, Junji| Motoki, Takayuki| Iwamoto, Takayuki| Oomori, Masako| Iha, Sigemichi| Hongo, Toshie| Henmi, Noriko| Makabe, Mikio| Nogami, Hiromi|
Published Date 2012-12-03
Publication Title 岡山医学会雑誌
Volume volume124
Issue issue3
Content Type Journal Article
Author Miyake, Susumu| Miyamura, Takako|
Published Date 2012-12-03
Publication Title 岡山医学会雑誌
Volume volume124
Issue issue3
Content Type Journal Article
JaLCDOI 10.18926/AMO/48967
FullText URL 66_5_423.pdf
Author Furukawa, Masashi| Izumi, Sadanobu| Tsukuda, Kazunori| Tokumo, Masaki| Sakurai, Jun| Mano, Shohey|
Abstract An 81-year-old man was found to have a pancreatic head tumor on abdominal computed tomography (CT) performed during a follow-up visit for sigmoid colon cancer. The tumor had a diameter of 35mm on the CT scan and was diagnosed as pancreatic head carcinoma T3N0M0. The patient was treated with pylorus-preserving pancreaticoduodenectomy. Histopathological examination showed that the tumor had grown within a hollow structure, was contiguous with a duodenal diverticulum, and had partially invaded the pancreas. Immunohistochemistry results were as follows:CK7 negative, CK20 positive, CD10 negative, CDX2 positive, MUC1 negative, MUC2 positive, MUC5AC negative, and MUC6 negative. The tumor was diagnosed as duodenal carcinoma from the duodenal diverticulum. Preoperative imaging showed that the tumor was located in the head of the pancreas and was compressing the common bile duct, thus making it appear like pancreatic cancer. To the best of our knowledge, this is the second report of a case of duodenal carcinoma from a duodenal diverticulum mimicking pancreatic carcinoma.
Keywords duodenal carcinoma duodenal diverticulum pancreatic carcinoma
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2012-10
Volume volume66
Issue issue5
Publisher Okayama University Medical School
Start Page 423
End Page 427
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2012 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23093061
Web of Science KeyUT 000310253900007
JaLCDOI 10.18926/AMO/48966
FullText URL 66_5_417.pdf
Author Horio, Takuya| Ogata, Sho| Tsujimoto, Hironori| Akase, Takayoshi| Takahata, Risa| Yaguchi, Yoshihisa| Maehara, Tadaaki| Hase, Kazuo|
Abstract Esophageal cancers usually exhibit lymph-node metastases. Although a solitary lymph-node metastasis is occasionally found, the involvement of an intrathoracic paraaortic node is rare. We present here an intrathoracic mid-esophageal cancer case in which an accompanying solitary retroaortic mass was found within the posterior mediastinum by integrated positron emission tomography/computed tomography. For diagnosis, thoracoscopic resection of the mass was performed from a left thoracic approach, and histology revealed it to be a squamous cell carcinoma metastasized from the esophageal cancer. Upon radical esophagectomy after neoadjuvant therapy as a T3N1M0 Stage IIIa (AJCC/UICC) cancer, the esophageal cancer was found to have invaded unexpectedly deeply in the vicinity of the descending aorta. Another lymph node within the paraaortic region was also involved (T4N1M0 Stage IIIc). The present case and other cases we review here inform our understanding of metastasis to intrathoracic paraaortic nodes as follows:1) its existence may indicate extensive lymph-node metastasis or direct tumor invasion nearby, and 2) it may be accompanied by other lymph-node involvements in this region, even if it appears solitary upon preoperative investigation. Thus, for radical esophagectomy, sufficient lymph-node dissection is required, even at locations not reached by the usual right thoracic approach. Definitive chemoradiotherapy may be a better choice for preoperatively recognized T3 esophageal cancer when the cancer is accompanied by paraaortic lymph node metastasis.
Keywords esophageal cancer intrathoracic paraaortic lymph node solitary metastasis
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2012-10
Volume volume66
Issue issue5
Publisher Okayama University Medical School
Start Page 417
End Page 421
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2012 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 23093060
Web of Science KeyUT 000310253900006
JaLCDOI 10.18926/AMO/48692
FullText URL 66_4_363.pdf
Author Tanaka, Masato| Sugimoto, Yoshihiro| Misawa, Haruo| Takigawa, Tomoyuki| Kunisada, Toshiyuki| Ozaki, Toshifumi|
Abstract Spinal deformity is an important clinical manifestation after surgery for spinal cord tumors. One-third of patients who receive laminectomies and irradiation of the spinal column develop scoliosis, kyphosis, or kyphoscoliosis. Recent reports indicate good results after scoliosis surgery using segmental pedicle screws and a navigation system, but these reported studies have not included surgery for post-laminectomy kyphosis. Hooks and wires are ineffective in such patients who undergo laminectomy, and there are also high perioperative risks with insertion of pedicle screws because landmarks have been lost. Here, we report on the 5-year follow-up of a 13-year-old male patient with post-laminectomy and post-irradiation thoracic kyphoscoliosis after surgical treatment of spinal astrocytoma. Posterior segmental pedicle screw fixation was performed safely using a computer-assisted technique. The authors present the first case report for treatment of this condition using a navigation system.
Keywords astrocytoma scoliosis kyphoscoliosis navigation segmental pedicle screw fixation
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2012-08
Volume volume66
Issue issue4
Publisher Okayama University Medical School
Start Page 363
End Page 368
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2012 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 22918210
Web of Science KeyUT 000307918900010