Faculty Profiles - OZAKI Toshifumi

MISC - OZAKI Toshifumi

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転移性脊椎腫瘍（胸・腰・仙椎）の手術療法

杉原進介, 田中雅人, 尾﨑敏文, 中原進之介

関節外科 26 ( 4 ) 73 - 80 2007

日米における人工関節全置換術の違い ―岡山大学と Anderson Orthopaeic Research Institute 症例の比較検討―

浅海浩二, Engh CA, Egawa H, 遠藤裕介, 三谷茂, 尾﨑敏文

日本人工関節学会誌 37 14 - 15 2007

各論 ―主要疾患の病期・病態別治療法―

国定俊之, 尾﨑敏文

Medical Practice 24 ( 臨時増刊号 ) 193 - 199 2007

Development of a medical CAD/CAM system for orthopedic surgery

M. Mitsuishi, N. Sugita, K. Fujiwara, N. Abe, T. Ozaki, M. Suzuki, H. Moriya, T. Inoue, K. Kuramoto, Y. Nakashima, K. Tanimoto

CIRP ANNALS-MANUFACTURING TECHNOLOGY 56 ( 1 ) 405 - 410 2007

Language：English Publisher：TECHNISCHE RUNDSCHAU EDITION COLIBRI LTD

In successful knee arthroplasty, the femur and the tibia must be shaped to fit an artificial joint. The recent trend towards MIS (Minimally Invasive Surgery) to decrease the length of the required incision in the skin has increased surgical difficulty, since the open access area is small. The developed system consists of (1) a preplanning system providing a CAD function, (2) a multi-axis CAM system which avoids cutting the skin and the ligament, and keeps the cutting time within acceptable limits, and (3) a 7-axis machine tool that assures the safety of the patient and the surgeon, and enables MIS.

DOI： 10.1016/j.cirp.2007.05.094

Web of Science

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頚椎後方固定に対する laminar screw の応用 ―頚椎椎弓板径の測定―

中西一夫, 田中雅人, 杉本佳久, 尾﨑敏文

整形外科 58 ( 3 ) 322 - 326 2007

紹介状および返事の書き方

尾﨑敏文

関節外科 26 ( 4月増刊号 ) 161 - 163 2007

Cutting tool system to minimize soft tissue damage for robot-assisted minimally invasive orthopedic surgery

Naohiko Sugita, Yoshikazu Nakajima, Mamoru Mitsuishi, Shosaku Kawata, Kazuo Fujiwara, Nobuhiro Abe, Toshifumi Ozaki, Masahiko Suzuki

MEDICAL IMAGE COMPUTING AND COMPUTER-ASSISTED INTERVENTION - MICCAI 2007, PT 1, PROCEEDINGS 4791 994 - + 2007

Language：English Publisher：SPRINGER-VERLAG BERLIN

Minimally invasive surgery in orthopedic field is considered to be a challenging problem with a milling robot. One objective of this study is to minimize collision of the cutting tool with soft tissue. The authors have developed a robot with redundant axis to avoid the collision so far. Sorne important components are modeled based on physical requirements, and a geometric optimization approach based on the model has been also proposed to improve performance. In this paper, a protective mechanism to cover the non-working part of the cutting edge is proposed to avoid soft tissue damage. Hardware and software have been developed for this application and the effectiveness of this technique was evaluated with urethane bone.

Web of Science

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Short-term Outcome after MIS-TLIF (Transforaminal Lumbar Interbody Fusion) for Degenerative Spondylolisthesis of Lumbar Spine

Misawa Haruo, Tanaka Masato, Nakanishi Kazuo, Sugimoto Yoshihisa, Ozaki Takafumi

The Journal of the Chugoku-Shikoku Orthopaedic Association 19 ( 1 ) 21 - 26 2007

Language：Japanese Publisher：The Chugoku-Shikoku Orthopaedic Association

Posterior lumbar interbody fusion (PLIF) is considered to be a suitable operative procedure for degenerative spondylolisthesis. However, PLIF is known as a procedure with many side effects; among them these related to the extensive invasion of paravertebral muscles (PVM) are the most remarkable. In order to overcome this problem with the aim being the prompt recovery of patients, we have recently conducted the MIS-TLIF (minimally invasive surgery-transforaminal lumbar interbody fusion), which is associated with less PVM insult. The procedure enables patients to rise, walk, leave the hospital, and return to their job promptly. MIS-TLIF is the combination of PLIF procedure using a percutaneous pedicle screw and rod system, CD Horizon Sextant, a bilateral decompression and a transforaminal interbody fusion by hemi mini-open approach using microendoscope or microscope. We reported comparative short-term outcomes after MIS-TLIF and conventional PLIF. MIS-TLIF technique was associated with longer surgical procedure. However, bed rest length and admission were shorter when compared with the conventional PLIF procedure. Concerning efficiencies of JOA score about low back pain differences were absent. There was a reduction in the low back pain on day 3 after MIS-TLIF procedure comparing to the preoperative period when evaluated through the VAS score. The MIS-TLIF is a less invasive procedure, which is associated with a reduction of the low back pain in the postoperative period that contributes to shorten the length of bed rest and admission. MIS-TLIF technique is a less insulting procedure for the treatment of degenerative spondylolisthesis.

DOI： 10.11360/jcsoa.19.21

CiNii Article

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Total Hip Arthroplasty after Failed Transtrochanteric Rotational Osteotomy of the Femoral Head

Kuroda Takayuki, Mitani Shigeru, Endo Hirosuke, Tetsunaga Tomonori, Ozaki Toshihumi, Asaumi Koji

The Journal of the Chugoku-Shikoku Orthopaedic Association 19 ( 1 ) 15 - 19 2007

Language：Japanese Publisher：The Chugoku-Shikoku Orthopaedic Association

The purpose of this study was to examine clinical outcomes and operative pitfalls of six cases of total hip arthroplasty (THA) surgery after failed transtrochanteric rotational osteotomy (TRO) for avascular necrosis of the femoral head. Five were men and two were women. The average age of the patients at the time of conversion to THA was 40 years (range, 21-60 years). Postoperative Japanese Orthopaedic Association (JOA) scores showed very satisfactory improvement compared to preoperative scores (mean score 40.7/78.5 points, respectively). Compared to the primary THA procedure, the mean operation time of THA after the failed TRO was significantly longer and the average of blood loss was also significantly greater. Postoperative complications were observed in only one hip. The broach should be inserted carefully to avoid retroversion. It is important to completely remove the impingement of the osteophyte. Because in THA after TRO many pitfalls are existing, these points should be taken into preoperative and postoperative consideration.

DOI： 10.11360/jcsoa.19.15

CiNii Article

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Arthroscopic diagnosis and treatment of an acetabular labrum bucket handle tear : two case reports

KURODA Takayuki, MITANI Shigeru, ABE Nobuhiro, ASAUMI Koji, ENDO Hirosuke, OZAKI Toshihumi

32 ( 2 ) 209 - 213 2007

Total Hip Arthroplasty for Irradiated Hip, A Case Report

Tetsunaga Tomonori, Mitani Shigeru, Endo Hirosuke, Kuroda Takayuki, Kunisada Toshiyuki, Ozaki Toshifumi

The Journal of the Chugoku-Shikoku Orthopaedic Association 19 ( 1 ) 33 - 36 2007

Language：Japanese Publisher：The Chugoku-Shikoku Orthopaedic Association

We reported a case of total hip arthroplasty (THA) for an irradiated hip. The patient was 65 years old woman with right coxalgia. At age 60, total hysterectomy surgery, for womb malignant melanoma, was performed at our department. This enforced external radiotherapy at an irradiation level of 48.5Gy. After treatment blood tests did not reveal any complications and tumor markers were negative, but right hip joint mobility was limited. At her first examination before THA, end stage coxarthrosis was diagnosed. Radiography and computerized tomography (CT) revealed protrusio acetabuli. During the five months period to surgery, the patient received conservative treatment without retrogression. Cement THA surgery using a Kerboull cross plate was then performed, because postoperative loosening of acetabular is often observed after cementless and cement THA procedure. Preoperative Japanese Orthopaedic Association (JOA) score was 15 points compared to postoperative score of 85 points. We recommend reinforcement of the acetabulum by a Kerboull cross plate in THA surgery for irradiated hip.

DOI： 10.11360/jcsoa.19.33

CiNii Article

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A Case of Revision Anterior Cruciate Ligament Reconstruction with Hamstrings Tendon for Residual Rotatory Instability after Primary Reconstruction with Bone-Patella Tendon-Bone

Date Hirokazu, Abe Nobuhiro, Yoshitaka Teruhito, Hayashi Tomoki, Sakoma Yoshimasa, Ozaki Toshifumi

The Journal of the Chugoku-Shikoku Orthopaedic Association 19 ( 1 ) 119 - 123 2007

Language：Japanese Publisher：The Chugoku-Shikoku Orthopaedic Association

Revision anterior cruciate ligament (ACL) reconstruction surgery has become increasingly common. A 21-year-old woman was performed primary ACL reconstruction with bone-patella tendon-bone (BTB) on the left knee at 17 year. After ACL reconstruction, she sometimes felt instability and complained about giving way on the reconstructed knee. She developed pain from 18 year. No limitation of motion was showen but positive anterior drawer test, pivot shift test and McMurray test on the physical examination at 21 year. We performed revision ACL reconstruction, which was preserved primary graft and augmented with hamstrings tendon and medial meniscus was repaired. At 14 months after operation, she has no complain subjectively and no rotatory and antero-postarior instability has restrained. We believe this technique offers a reasonable approach to revision ACL surgery in the properly indicated patients, especially for the rotatory istability.

DOI： 10.11360/jcsoa.19.119

CiNii Article

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THA 後スケジュールが DVT 発症に及ぼす影響 ―Charnley 型 THA と MIS-THA の比較―

黒田崇之, 三谷茂, 遠藤裕介, 藤原一夫, 尾﨑敏文

Hip Joint 33 622 - 625 2007

骨盤骨切り術における自己血貯血に関する検討

鉄永智紀, 三谷茂, 遠藤裕介, 黒田崇之, 尾﨑敏文

Hip Joint 33 515 - 517 2007

Language：Japanese Publisher：日本股関節学会

骨盤骨切り術における自己血貯血について検討した。対象は2000年12月〜2006年5月に骨盤骨切り術を行った変形性股関節症75例87股(男性8例、女性67例・平均年齢34.8歳)であった。術式は寛骨臼回転骨切り術50股(R群)、Chiari骨盤骨切り術8股(C群)、寛骨臼回転骨切り術+大腿骨骨切り術3個(R+F群)、Chiari骨盤骨切り術+大腿骨骨切り術26股(C+F群)で、術前貯血量は800ml:64股、400ml:15股、200ml:1股、貯血不能7股であった。1)周術期の平均Hb値はC群で術後2日目に、他の3群で術後3日目に最低値を示し、その後に回復傾向を示した。2)術式別の平均総出血量はR群1400ml、C群526ml、R+F群1636ml、C+F群1023mlであった。3)平均手術血液準備量(SBOE)は、術後期待Hb値を10g/dlに設定すると、R群3.4単位、C群0.6単位、R+F群4.7単位、C+F群1.7単位となった。また、貯血前Hb値とSBOEとの間に負の相関を認めた。尚、貯血前Hb値が14.5g/dl以上の症例では、自己貯血は必要ないと考えられた。

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鼠径部の軟部組織再建

木股敬裕, 難波祐三郎, 長谷川健二郎, 杉山成史, 尾崎敏文, 別府保男, 中馬広一, 川井章, 中谷文彦, 桜庭実

関節外科 26 108 - 114 2007

Charnley 式人工股関節置換術 10〜33 年の長期成績

藤原一夫, 三谷茂, 遠藤裕介, 鉄永智紀, 皆川寛, 尾﨑敏文

整・災外 50 ( 11 ) 1215 - 1220 2007

大腿骨骨切り術を併用した Chiari 骨盤骨切り術の術前計画における股関節鏡の有用性

三谷茂, 遠藤裕介, 浅海浩二, 鉄永智紀, 尾﨑敏文

Hip Joint 33 50 - 56 2007

Language：Japanese Publisher：日本股関節学会

大腿骨骨切り術を併用する Chiari骨盤骨切り術において、術前股関節鏡により骨頭軟骨の状態を確認し、残存軟骨が荷重部に移動し且つ関節適合性が良好となるよう大腿骨骨切り術を計画した16例17関節の治療成績を調査し、術前股関節鏡の有用性について検討した。X線学的な病期(関節裂隙狭小度)と股関節鏡所見が乖離していたものが5関節(29%)存在した。すなわち、この5関節は鏡視で骨頭に広範囲な軟骨欠損が確認された症例であり、股関節鏡が有用であった。JOAスコアは術前平均61点(25〜93点)、最終観察時平均84点(64〜100点)で、全例改善した。

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Short-term follow up of THA using triple taper cement stem

Orthopaedic surgery and traumatology 50 ( 8 ) 921 - 924 2007

間欠跛行を伴う腰部脊柱管狭窄症の中期治療成績

中西一夫, 田中雅人, 杉本佳久, 尾﨑敏文, 松井譲

西日本脊椎研究会誌 33 ( 2 ) 213 2007

頚椎後方固定に際して laminar screw を用いて固定を行った 2 症例

中西一夫, 田中雅人, 杉本佳久, 尾﨑敏文

西日本脊椎研究会誌 33 ( 1 ) 44 - 47 2007

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