Shuhei Ogino

Brigham and Women's Hospital, Boston, Massachusetts, United States

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Publications (12)25.01 Total impact

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    ABSTRACT: Incidental articular cartilage lesions of the far posterior femoral condyle (FPFC) are commonly detected. Whether or not these cartilage lesions are symptomatic or clinically significant is unknown. To characterize and assess prevalence of articular cartilage abnormalities of the FPFC and associated bone marrow edema (BME) and/or internal derangements through magnetic resonance (MR) images. 654 knee MR examinations were reviewed retrospectively. Sagittal fast spin-echo proton density-weighted images with and without fat suppression were acquired with a 1.5T scanner, and were evaluated by two readers by consensus. The following factors were assessed: 1) the prevalence of cartilage abnormalities, 2) laterality, 3) the type of cartilage abnormalities, 4) cartilage abnormality grading, 5) associated BME, 6) complications such as meniscal injury and cruciate ligament injury, and 7) knee alignment (femorotibial angle [FTA]). Articular cartilage abnormalities of the FPFC were demonstrated in 157 of the 654 patients (24%). Of these, 40 patients demonstrated medial and lateral FPFC cartilage abnormalities and were thus counted as 80 cases. Focal lateral FPFC abnormalities were demonstrated in 117 of 197 cases (59.4%), while diffuse lateral FPFC abnormalities were demonstrated in 24 of 197 cases (12.2%). Focal medial FPFC abnormalities were demonstrated in 23 of 197 cases (11.6%), while diffuse medial FPFC abnormalities were demonstrated in 33 of 197 cases (16.8%). No statistically significant pattern of associated BME, FTA, or internal derangements including meniscal and cruciate ligament injury was demonstrated. Articular cartilage abnormalities of the FPFC are common and were demonstrated in 24% of patients or 30% of cases. Lateral FPFC abnormalities occur 2.5 times more frequently than medial FPFC abnormalities and were more frequently focal compared with medial cohorts. BME is associated in 36.5% of cases.
    No preview · Article · Nov 2009 · Acta Radiologica
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    ABSTRACT: Knee pain is predominant among osteoarthritis (OA) patients, but the mechanism is poorly understood. We investigated subchondral bone as a source of OA knee pain using immunohistochemistry. Fifteen medial-type OA knees with minimum involvement of the lateral compartment determined by X-ray as well as magnetic resonance imaging that received total knee arthroplasty (TKA) were involved. Each pair of the medial femoral condyle (MFC) and lateral femoral condyle (LFC) was compared obtained at the time of TKA. Osteocartilaginous MFC and LFC specimens were histologically examined and stained with antibodies against cyclooxygenase 1 (Cox-1), cyclooxygenase 2 (Cox-2), substance P, tumor necrosis factor-alpha (TNF-alpha), and neuron-specific class III beta-tubulin (TUJ1), a pan-neuronal marker. Formation of cystic lesions was more frequently seen in the MFC. The lesions were composed of vascular endothelial cells, osteoclasts, and mononuclear cells and were present in similar proportions between the MFC and the LFC. Four out of 15 MFC specimens were positive for Cox-1, 15 for Cox-2, and 13 for TNF-alpha. No LFC specimens were positive for any antibodies. Substance P-positive and TUJ1-positive fibers were found in the subchondral area of the MFC, but not in the LFC. Pathological changes in the subchondral bone can be a source of knee pain, which was detectable by the positive immunoreactivity of substance P, Cox-2, TNF-alpha, and TUJ1, in the subchondral bone of affected compartments. The relatively immediate reduction in pain obtained by TKA might account for the involvement of the subchondral bone in knee pain because most of the affected subchondral plate is excised in TKA (debridement effect of TKA).
    No preview · Article · Oct 2009 · Clinical Rheumatology
  • Toshikazu Tanaka · Shuhei Ogino · Hiroshi Yoshioka
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    ABSTRACT: The purpose of this review is to summarize ligamentous injury of the wrist. Triangular fibrocartilage complex (TFCC), scapholunate ligament (SLL), and lunotriquetral ligament (LTL) are crucial to wrist stability. Damage to these ligaments causes changes in bone alignment and altered motion pattern. This may cause pain and eventually osteoarthritis. Imaging techniques of the wrist include conventional arthrography, computed tomography (CT) arthrography, conventional magnetic resonance imaging (MRI), and MR arthrography. Especially, MRI plays an important role in the assessment of TFCC, SLL, and LTL. Therefore, special attention is drawn to normal and abnormal MR imaging appearance of these ligaments in this review. Variety of treatment options dependent on classification of TFCC and ligamentous injury as well as role of imaging in the patient treatment are also discussed.
    No preview · Article · Jan 2009 · Seminars in musculoskeletal radiology
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    ABSTRACT: PURPOSE To investigate risk factors of the development of joint adhesion (also known as arthrofibrosis) after autologous chondrocyte implantation (ACI) of the knee. METHOD AND MATERIALS We reviewed 230 patient cases with knee ACI operated on from 1995 June to 2006 December, which had undergone arthroscopy after initial surgery. All patients were examined with magnetic resonance imaging (MRI) before ACI procedure. One hundred twenty-seven males and 103 females were included in this study. Ages ranged from 14 to 57 years old, mean age was 36.6. These cases were categorized into two groups: adhesion group and non-adhesion group. The incidence between the two groups was compared using the following factors: 1) age, 2) gender, 3) number of grafts, 4) location of grafts, 5) graft size, 6) harvest site of the periosteum, 7) defect type, 8) rotatory instability, 9) correction of alignment, and 10) lateral release. The chi square test was used to determine the significance of the differences. RESULTS There were 91 knees in the adhesion group and 139 knees in the non-adhesion group. Mean age was 38.0 in the adhesion group and 35.8 in the non-adhesion group. Females comprised 57.1% of the adhesion group and 54.0% of the non-adhesion group. Age and gender did not demonstrate a significant difference. The mean number of ACI grafts in the adhesion group was greater than that in the non-adhesion group (1.82 grafts for adhesion vs. 1.62 grafts for non-adhesion). ACI at the patella and the trochlea showed significantly increased incidences of adhesion (p<0.01 for the patella and p<0.05 for the trochlea). Cases with lateral release associated with ACI significantly developed adhesion (p=0.001). Other factors didn’t reveal any significant difference between the two groups. Two and more ACI grafts with lateral release, at the patella, or at the trochlea showed statistically significant difference between the two groups (p<0.05 for all), while one ACI graft with lateral release, at the patella, or at the trochlea didn’t. CONCLUSION The number of grafts, implantation at patellofemoral joint, or lateral release appear to be risk factors of adhesion after ACI of the knee. CLINICAL RELEVANCE/APPLICATION To reveal risk factors of ACI had a significant clinical relevance for obtaining better results.
    No preview · Conference Paper · Dec 2008
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    ABSTRACT: Small peptides including the Arg-Gly-Asp (RGD) motif have been used in studies on cell-extracellular matrix (ECM) attachment due to their ability to disturb integrin-mediated attachment on the cell surface. As another biological action of RGD peptides, several reports have shown that RGD peptides are incorporated into cytoplasm and induce apoptosis by direct activation of caspase-3. This study evaluated the effect of RGD peptides on chondrocytes and synovial cells and studied the involvement of caspases. Chondrocytes and synovial cells were isolated and cultured from the knee joints of New Zealand White rabbits. Cells were incubated in serum-free medium with peptides (RGD, RGDS, GRGDSP, GRGDNP, RGES), and the survival rates were evaluated. The rate of apoptotic cells was measured by flow cytometry in cells treated with RGDS, GRGDSP, and RGES. Caspase-3, -8 and -9 activity was measured in cells treated with RGDS and GRGDSP. Osteochondral explants harvested from rabbits were also incubated with RGD peptides (RGDS, GRGDSP, and GRGDNP), and the survival rate of chondrocytes was evaluated. The survival rate of cultured chondrocytes was significantly decreased in the GRGDSP- and GRGDNP-treated groups. The survival rate of synovial cells was significantly decreased with four of the RGD peptides (RGD, RGDS, GRGDSP, and GRGDNP) at 5 mM, and in the RGDS- and GRGDSP-treated groups at 1 mM. Flow cytometric assay revealed increases of apoptotic chondrocytes with GRGDSP and increases of apoptotic synovial cells with RGDS and GRGDSP. Caspase-3 was activated in chondrocytes treated with GRGDSP and it was also activated in synovial cells treated with RGDS and GRGDSP. Caspases-8 and -9 were not activated in chondrocytes or in synovial cells. The survival rate of chondrocytes in explants decreased in the superficial layer with all three RGD peptides (RGDS, GRGDSP, and GRGDNP) and in the middle layer with GRGDSP. RGD peptides induced apoptosis in cultured chondrocytes as well as in cells in cartilage explants and synovial cells, presumably through direct activation of caspase-3.
    No preview · Article · Dec 2008 · Journal of Orthopaedic Science
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    ABSTRACT: To elucidate the etiology of and find a preferable surgical treatment for spontaneous recurrent hemarthrosis in osteoarthritic knee joints arthroscopically. Nineteen patients referred to our institution from affiliate hospitals between April 1998 and October 2006 were involved in this study. Their demographics, preoperative radiographic findings, preoperative magnetic resonance imaging (MRI) findings, arthroscopic findings and procedures performed, the patient's medical history, and the postoperative clinical course were retrospectively reviewed. There were 9 male and 10 female patients with average age of 61.9 years (range, 41 to 83 yrs). The average number of joint aspirations before surgery was 5.4. The average time from onset to arthroscopy was 10 months. Radiographs showed 2 knees with isolated lateral compartment osteoarthritis (OA), one with isolated patellofemoral (PF) OA, 14 with medial and lateral compartment OA, and 2 with tricompartmental OA. Classifying them according to the dominant compartment, 6 knees were medial-dominant OA, 11 lateral-dominant OA, and 2 PF-dominant OA. The MRI scans revealed 18 grade III lateral menisci and 1 grade II lateral menisci. Even with 6 medial-dominant OAs, lateral meniscal involvement was more obvious than medial meniscal involvement on MRI. Subtotal lateral meniscectomy accompanied with coagulation of the bleeding points was performed on 17 cases. For 2 PF OA cases, synovectomy and a histologic examination of synovium were performed. Remission was obtained for 18 cases. The unsuccessful case had cirrhosis of the liver. A majority of the patients (17 of 19) had degenerative torn lateral menisci confirmed with MRI and at arthroscopy. Successful outcomes were achieved by meniscectomy and coagulation. Most so-called spontaneous recurrent hemarthroses in OA knee joints appear to be attributable to torn lateral menisci. Level IV, therapeutic case series.
    No preview · Article · Oct 2008 · Arthroscopy The Journal of Arthroscopic and Related Surgery
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    Preview · Article · Dec 2007 · Osteoarthritis and Cartilage
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    S. Ogino · T. Huang · P. Lang · H. Yoshioka

    Full-text · Article · Dec 2007 · Osteoarthritis and Cartilage
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    ABSTRACT: Irregularly described contour of the femur and the tibia on magnetic resonance (MR) imaging is commonly seen in osteoarthritic (OA) knees. The aim of this study is to examine the relationship between irregularity of contour of medial femoral condyle (tentatively named I-index) and severity of OA. Twenty-six medial-type OA knees with a mean age of 63.8 were studied. All patients had undergone MR imaging to measure the I-index using image analysis software, and its relationship to Lysholm score was examined. The I-index negatively correlated with Lysholm score (r = -0.55, p < 0.01). The I-index for each Kellgren and Lawrence grade was significantly different. We have concluded that the I-index is a potent indicator to objectively describe the severity of OA especially for the advanced stage OA.
    No preview · Article · Oct 2007 · Clinical Rheumatology
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    S. Ogino · T. Sasho · K. Nakagawa · N. Ochiai · H. Moriya

    Preview · Article · Dec 2006 · Osteoarthritis and Cartilage
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    ABSTRACT: Intracranial subdural hematoma associated with intracranial hypotension is a rare complication of dural puncture and other procedures on the dura. This report describes the case of a 25-year-old man who developed intracranial subdural hematoma after resection of a thoracic spinal cord tumor. Intracranial subdural hematoma could result in severe and permanent neurologic deficit if it remains unrecognized. Severe and prolonged postdural puncture headache should be regarded as a warning sign of an intracranial subdural hematoma, and in those patients early investigation is recommended.
    No preview · Article · Jan 2003 · Journal of Spinal Disorders & Techniques
  • K. Matsuki · R. Murate · N. Ochiai · S. Ogino

    No preview · Article ·

Publication Stats

106 Citations
25.01 Total Impact Points


  • 2009
    • Brigham and Women's Hospital
      Boston, Massachusetts, United States
  • 2006-2009
    • Chiba University
      • • Department of Orthopedic Surgery
      • • Graduate School of Medicine
      Tiba, Chiba, Japan