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Anterolateral rotatory instability in vivo correlates tunnel position after anterior cruciate ligament reconstruction using bone-patellar tendon-bone graft

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World Journal of Orthopedics 2017年第12期8卷 913-921页

作者： Yasutaka Tashiro Ken Okazaki Koji Murakami Hirokazu Matsubara Kanji Osaki yukihide iwamoto Yasuharu Nakashima Department of Orthopaedic Surgery University of Pittsburgh Department of Orthopaedic Surgery Kyushu University

AIM To quantitatively assess rotatory and anterior-posterior instability in vivo after anterior cruciate ligament(ACL) reconstruction using bone-patellar tendon-bone(BTB) autografts, and to clarify the influence of tunnel positions on the knee *** Single-bundle ACL reconstruction with BTB autograft was performed on 50 patients with a mean age of 28 years using the trans-tibial(TT)(n = 20) and trans-portal(TP)(n = 30) techniques. Femoral and tibial tunnel positions were identified from the high-resolution 3 D-CT bone models two weeks after surgery. Anterolateral rotatory translation was examined using a Slocum anterolateral rotatory instability test in open magnetic resonance imaging(MRI) 1.0-1.5 years after surgery, by measuring anterior tibial translation at the medial and lateral compartments on its sagittal images. Anterior-posterior stability was evaluated with a Kneelax3 *** A total of 40 patients(80%) were finally followed up. Femoral tunnel positions were shallower(P < 0.01) and higher(P < 0.001), and tibial tunnel positions were more posterior(P < 0.05) in the TT group compared with the TP group. Anterolateral rotatory translations in reconstructed knees were significantly correlated with the shallow femoral tunnel positions(R = 0.42, P < 0.01), and the rotatory translations were greater in the TT group(3.2 ± 1.6 mm) than in the TP group(2.0 ± 1.8 mm)(P < 0.05). Side-to-side differences of Kneelax3 arthrometer were 1.5 ± 1.3 mm in the TT, and 1.7 ± 1.6 mm in the TP group(N.S.). Lysholm scores, KOOS subscales and reinjury rate showed no difference between the two *** Anterolateral rotatory instability significantly correlated shallow femoral tunnel positions after ACL reconstruction using BTB autografts. Clinical outcomes, rotatory and anterior-posterior stability were overall satisfactory in both techniques, but the TT technique located femoral tunnels in shallower and higher positions, and tibial tunnels in more p

关键词： Anterior cruciate ligament Patellar tendon Bone-patellar tendon-bone Rotatory instability Magnetic resonance imaging Tunnel position Anatomic Singlebundle

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Bone and soft tissue tumors presenting as sciatic notch dumbbell masses: A critical differential diagnosis of sciatica

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World Journal of Clinical Oncology 2016年第5期7卷 414-419页

作者： Yoshihiro Matsumoto Tomoya Matsunobu Katsumi Harimaya Kenichi Kawaguchi Mitsumasa Hayashida Seiji Okada Toshio Doi yukihide iwamoto Department of Orthopaedic Surgery Graduate School of Medical Sciences Kyushu University Department of Orthopaedic Surgery Kyushu University Beppu Hospital

AIM To study the clinical findings and characteristic features in sciatic notch dumbbell tumors(SNDTs).METHODS We retrospectively reviewed the clinical outcomes and characteristic features of consecutive cases of SNDTs(n = 8). RESULTS Buttock masses occurred in three patients with SNDT(37.5%). Severe buttock tenderness and pain at rest were observed in seven patients with SNDTs(87.5%). Remarkably, none of the patients with SNDTs experienced back pain. Mean tumor size was 8.4 ± 2.0 cm(range, 3.9 to 10.6 cm) and part of the tumor mass was detected in 2 patients in the sagittal view of lumbar magnetic resonance imaging(MRI).CONCLUSION The clinical information regarding to SNDTs is scarce. The authors consider that above mentioned characteristic findings may facilitate the suspicion of pelvic pathology and a search for SNDT by MRI or computed tomography should be considered in patients presenting with sciatica without evidence of spinal diseases.

关键词： Sciatic notch Dumbbell masses Sciatica Differential diagnosis Bone and soft tissue tumor

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The 45-Degree Arthroscope Improves Visualization of the Femoral Attachment of the Anterior Cruciate Ligament

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Surgical Science 2012年第1期3卷 43-46页

作者： Ken Okazaki Shuichi Matsuda Yasutaka Tashiro yukihide iwamoto Department of Orthopaedic Surgery Graduate School of Medical Sciences Kyushu University Fukuoka Japan

Background: Exposure of the insertion site of the anterior cruciate ligament (ACL) is important for appropriate tunnel placement in ACL reconstruction surgery. However, observing the femoral ACL insertion site via the standard anterolateral portal is sometimes difficult. In this study, we compared views of the femoral ACL insertion site between 30-degree and the 45-degree arthroscopes. Methods: We first inserted the 30-degree and the 45-degree arthroscope into the anterolateral portal of a knee simulator in which we had drawn a lattice pattern on the lateral intercondylar notch based on the quadrant method. Next, we compared the arthroscopic views provided by the 30-degree and 45-degree arthroscopes during ACL reconstruction surgery by measuring the area of the lateral intercondylar notch visible through each of the arthroscopes. Results: In the knee simulator, the 45-degree arthroscope showed the entire area of the lateral intercondylar notch, whereas the 30-degree arthroscope had to be introduced more deeply to show the most superior and posterior quadrant, where the attachment of the anteromedial bundle of ACL is located. During the ACL reconstruction, the area of the lateral intercondylar notch in the field of view was larger through the 45-degree arthroscope than through the 30-degree arthroscope. Conclusion: The 45-degree arthroscope provides a better view of the femoral ACL insertion site via the anterolateral portal, which may be helpful during ACL reconstruction.

关键词： Arthroscope Knee Anterior Cruciate Ligament (ACL) Surgical Device

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CT-guided radiofrequency ablation of osteoid osteoma in the long bones of the lower extremity

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World Journal of Radiology 2012年第6期4卷 278-282页

作者： Yoshiki Asayama Akihiro Nishie Kousei Ishigami Daisuke Kakihara Yasuhiro Ushijima Yukihisa Takayama Nobuhiro Fujita Tsuyoshi Tajima Kengo Yoshimitsu Shuichi Matsuda yukihide iwamoto Hiroshi Honda Department of Clinical Radiology Graduate School of Medical SciencesKyushu University3-1-1 MaidashiHigashikuFukuoka 812-8582Japan Department of Molecular Imaging and Diagnosis Kyushu University3-1-1 MaidashiHigashi-kuFukuoka 812-8582Japan Department of Diagnostic Imaging and Nuclear Medicine Tokyo Women’s Medical University8-1 KawadachoShinjuku-kuTokyo 162-8666Japan Department of Radiology Fukuoka University7-45-1 NanakumaJonan-kuFukuoka 814-0180Japan Department of Orthopaedic Surgery Kyushu University3-1-1 MaidashiHigashi-kuFukuoka 812-8582Japan

AIM:To present our initial experience with computed tomography guided radiofrequency ablation(RFA) of osteoid osteoma(OO) in our ***:RFA was performed on eight patients(5 males and 3 females) with clinically and radiologically diagnosed OO(femoral neck,n = 4;femoral diaphysis,n = 2;tibial diaphysis,n = 1;fibular diaphysis,n = 1).Ablation was performed using an electrode with a 10-mm exposed tip for a total of 4-6 min at a targeted temperature of 90 degrees *** cooling system was *** intervention was accepted as technically successful if the tip of the electrode could be placed within the center of the *** defined clinical success as a disappearance within 2 wk after treatment of symptoms that had manifested at ***:All procedures were technically *** major or immediate complications were *** success was achieved in six of eight patients in the first procedure.A second procedure was performed for two patients who had recurrent or continued pain,and one of these cases was successfully *** overall rate of success was 87.5%(7/8).No complication was ***:Our preliminary results indicate a favorable success rate and no complications and are compatible with the previous reports of RFA of OO.

关键词： Ablation Osteoid osteoma Computed tomography

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英卡膦酸盐对佐剂关节炎模型大鼠骨与关节的影响

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中国新药杂志 2005年第9期14卷 1137-1141,i0001页

作者：赵洪普刘尚礼黄东生徐秋玉首藤敏秀岩本幸英中山大学附属第二医院骨外科广州510120 广州中医药大学第一附属医院门诊部广州510405

目的:研究英卡膦酸盐对佐剂关节炎大鼠的关节炎症、肿胀以及结构破坏的影响。方法:35只雌性Lewis大白鼠随机分为5组:正常对照组、模型组和英卡膦酸盐低、中、高剂量组,每组7只。除正常对照组外,其余4组接种佛氏完全佐剂诱发关节炎。英... 详细信息

目的:研究英卡膦酸盐对佐剂关节炎大鼠的关节炎症、肿胀以及结构破坏的影响。方法:35只雌性Lewis大白鼠随机分为5组:正常对照组、模型组和英卡膦酸盐低、中、高剂量组,每组7只。除正常对照组外,其余4组接种佛氏完全佐剂诱发关节炎。英卡膦酸盐3个剂量组自接种之日起,连续42d皮下注射英卡膦酸盐0·01,0·1和1mg·kg-1·d-1,qd。记录关节炎分数,测定后足肿胀程度,并观察大鼠后肢放射学和踝关节组织病理学变化。结果:与模型组比较,英卡膦酸盐剂量依赖性地降低关节炎分数和后足肿胀程度;大鼠后肢放射学和踝关节组织病理学变化显示,英卡膦酸盐减轻踝与足部骨、关节的变形破坏,X线分数和TRAP阳性细胞计数剂量依赖性的降低。结论:英卡膦酸盐对大鼠佐剂关节炎的关节炎症、肿胀以及结构破坏具有抑制作用,提示英卡膦酸盐可作为类风湿性关节炎的辅助预防治疗药物。

关键词：英卡膦酸盐佐剂关节炎骨破坏破骨细胞

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