Research Topics
| Hiroshi ItoSummaryAffiliation: Asahikawa Medical College Country: Japan Publications
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Detail Information
Publications
Long-term results of conventional varus half-wedge proximal femoral osteotomy for the treatment of osteonecrosis of the femoral headH Ito
Asahikawa Medical University, Department of Orthopaedic Surgery, Midorigaoka Higashi 2 1 1 1, Asahikawa 078 8510, Japan
J Bone Joint Surg Br 94:308-14. 2012....- The proximal hip joint capsule and the zona orbicularis contribute to hip joint stability in distractionHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical College, Midorigaoka Higashi 2 1 1 1, Asahikawa, 078 8510, Japan
J Orthop Res 27:989-95. 2009..The proximal to middle part of the capsule, which includes the zona orbicularis, appears grossly and biomechanically to act as a locking ring wrapping around the neck of the femur and is a key structure for hip stability in distraction... - Three-dimensional computed tomography analysis of non-osteoarthritic adult acetabular dysplasiaHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical College, Midorigaoka Higashi 2 1 1 1, Asahikawa 078 8510, Japan
Skeletal Radiol 38:131-9. 2009..The aim of this study was to investigate the distribution and degree of acetabular dysplasia in a large number of patients showing no advanced degenerative changes using three-dimensional computed tomography (3DCT)... 
Hybrid total hip arthroplasty using specifically-designed stems for patients with developmental dysplasia of the hip. A minimum five-year follow-up studyHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical University, Asahikawa, Japan
Int Orthop 35:1289-94. 2011..Primary THA using the 4-U system had a good mid-term result in patients with DDH. This system could be applied for all patients including those with the narrowest and deformed femurs...- The Chiari pelvic osteotomy for patients with dysplastic hips and poor joint congruency: long-term follow-upH Ito
Department of Orthopaedic Surgery, Asahikawa Medical University, Midorigaoka Higashi 2 1 1 1, Asahikawa 078 8510, Japan
J Bone Joint Surg Br 93:726-31. 2011..6% for those with advanced osteoarthritis (p < 0.001). We now perform the Chiari osteotomy for patients with dysplastic hips showing poor joint congruency and who prefer a joint-conserving procedure to THR... - Intermediate to long-term results of periacetabular osteotomy in patients younger and older than forty years of ageHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical University, Higashi 2 1 1 1, Midorigaoka, Asahikawa, 078 8510, Japan
J Bone Joint Surg Am 93:1347-54. 2011..The goal of the present retrospective study was to analyze the intermediate to long-term functional and radiographic results of periacetabular osteotomy in patients below and above the age of forty years... - Porous-coated cementless acetabular components without bulk bone graft in revision surgeryHiroshi Ito
Department of Orthopedic Surgery, Asahikawa Medical College, Asahikawa, Japan
J Arthroplasty 25:1307-10. 2010..Overall, 7 (7%) components required removal or repeat revision. No shell was revised for aseptic loosening, and none was categorized as loose during the entire follow-up period... - Cemented calcar replacement femoral component in revision hybrid total hip arthroplastyHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical College, Asahikawa, Japan
J Arthroplasty 26:236-43. 2011..Kaplan-Meier analysis revealed that the 15-year survival rate was 90% with mechanical failure as the end point. This technique remains a reasonable option for the first-time revision, especially for older and less active patients... 
Cementless total hip arthroplasty using the modular S-ROM prosthesis combined with corrective proximal femoral osteotomyShin Onodera
Department of Orthopaedic Surgery, Hokkaido University, Graduate School of Medicine, Sapporo, Japan
J Arthroplasty 21:664-9. 2006..S-ROM modular stem, which gives sufficient rotational stability at both proximal and distal parts of the osteotomy, is useful for total hip arthroplasty combined with corrective femoral transverse osteotomy...- Tight fit technique in primary hybrid total hip arthroplasty for patients with hip dysplasiaHiroshi Ito
Department of Orthopaedics, Asahikawa Medical College, Asahikawa, Japan
J Arthroplasty 22:57-64. 2007..No femoral component was revised for aseptic loosening. We conclude that the tight fit technique using a canal-filling stem may produce good long-term results for patients with hip dysplasia... - Fixation with poly-L-lactide screws in hip osteotomiesHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical College, Asahikawa, Japan
Clin Orthop Relat Res 444:169-75. 2006..Osteolysis is a possible complication. Level of Evidence: Therapeutic study, Level II (prospective comparative study). See the Guidelines for Authors for a complete description of levels of evidence... - Use of a deep polyethylene liner for the treatment of recurrent dislocationHiromasa Tanino
Department of Orthopaedic Surgery and Arthroplasty, Asahikawa Medical College, Asahikawa, Japan
Hip Int 20:269-72. 2010..Surgeons should consider the articular geometry of the polyethylene liner as an important design parameter, and we recommend that deeper polyethylene liners be considered for treatment of recurrent dislocation after primary THA... - Fixation with poly-L-lactic acid screws in hip osteotomy: 68 hips followed for 18-46 monthsHiroshi Ito
Department of Orthopaedic Surgery, Hokkaido University School of Medicine, Sapporo, Japan
Acta Orthop Scand 73:60-4. 2002..The average age at surgery was 35 (12-49) years. The mean duration of follow-up was 32 (18-46) months. All the osteotomized acetabulums united well, but 4 of 54 trochanteric osteotomies failed to unite... - Rotational acetabular osteotomy through an ollier lateral u approachHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical College, Asahikawa, Japan
Clin Orthop Relat Res 459:200-6. 2007..This procedure allows osseous cuts with good operative exposure and provides relief from symptoms in most painful dysplastic hips... - Intermediate-term results after hybrid total hip arthroplasty for the treatment of dysplastic hipsHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical College, Higashi, Japan
J Bone Joint Surg Am 85:1725-32. 2003..However, few studies have described the results of this technique in patients with developmental dysplasia of the hip... - Transtrochanteric rotational osteotomy for osteonecrosis of the femoral head: relation between radiographic features and secondary collapseShin Onodera
Department of Orthopaedic Surgery, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan
J Orthop Sci 10:367-73. 2005..In such cases, alteration of the after-treatment program (e.g., prolonging the non-weight-bearing period) should be considered... - In vivo femoral head damage and its effect on polyethylene wearHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical College, Midorigaoka, Asahikawa, Japan
J Arthroplasty 25:302-8. 2010..04 +/- 0.14 mg per 1 million cycles (P < .001). Highly cross-linked polyethylene was more resistant to wear than conventional polyethylene, even when mated against roughened femoral heads... - Chiari pelvic osteotomy for advanced osteoarthritis in patients with hip dysplasiaHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical College, Midorigaoka Higashi 2 1 1 1, Asahikawa 078 8510, Japan
J Bone Joint Surg Am 87:213-25. 2005.... - Chiari pelvic osteotomy for advanced osteoarthritis in patients with hip dysplasiaHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical College, Higashi 2 1 1 1, Midorigaoka, Asahikawa 078 8510, Japan
J Bone Joint Surg Am 86:1439-45. 2004.... - Acetabular components without bulk bone graft in revision surgery: A 5- to 13-year follow-up studyHiroshi Ito
Department of Orthopaedics, Asahikawa Medical College, Asahikawa, Japan
J Arthroplasty 18:134-9. 2003..No acetabular components were categorized as definitely loose at final follow-up. The current satisfactory results encourage the use of this simple technique... - Periprosthetic acetabular bone loss using a constrained acetabular componentHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical College, Midorigaoka Higashi 2 1 1 1, 078 8510, Asahikawa, Japan
Arch Orthop Trauma Surg 124:137-9. 2004..These failures illustrate the potential risk of using a constrained acetabular component... - Blockade of JNK and NFAT pathways attenuates orthopedic particle-stimulated osteoclastogenesis of human osteoclast precursors and murine calvarial osteolysisYasuhiro Yamanaka
Department of Orthopedics, Asahikawa Medical University, Asahikawa, Japan
J Orthop Res 31:67-72. 2013..Thus JNK and NFATc1 appear to act as significant mediators of orthopedic particle-induced osteolysis in humans... - Intermediate- to long-term results after hybrid total hip arthroplasty in patients with rheumatoid arthritisHiroshi Ito
Department of Orthopaedic Surgery, Asahikawa Medical University, Asahikawa, Japan
J Arthroplasty 28:309-14. 2013..Although postoperative dislocation remains a concern, hybrid total hip arthroplasty had an acceptable result in patients with rheumatoid arthritis... - Japanese Orthopaedic Association Hip Disease Evaluation Questionnaire (JHEQ): a patient-based evaluation tool for hip-joint disease. The Subcommittee on Hip Disease Evaluation of the Clinical Outcome Committee of the Japanese Orthopaedic AssociationTadami Matsumoto
Department of Orthopaedic Surgery, Kanazawa Medical University, 1 1 Daigaku, Uchinada machi, Kahoku gun, Ishikawa 920 0293, Japan
J Orthop Sci 17:25-38. 2012..However, there is no tool evaluating QOL for Japanese patients with hip-joint disease... - Relationship between bone marrow edema and development of symptoms in patients with osteonecrosis of the femoral headHiroshi Ito
Department of Orthopedic Surgery, Asahikawa Medical College, Midorigaoka Higashi 2 1 1 1, Asahikawa 078 8510, Japan
AJR Am J Roentgenol 186:1761-70. 2006..The purpose of this study was to determine the significance of risk factors on MR images for predicting the outcome of patients with osteonecrosis of the femoral head... - Osteoarthritis hip joints in Japan: involvement of acetabular dysplasiaSeiya Jingushi
Department of Orthopaedic Surgery, Kyushu Rosai Hospital of Japan Labour Health and Welfare Organization, 1 3 1 Takamatsu, Kuzuhara, Kokura minami ku, Kitakyushu, 800 0296, Japan
J Orthop Sci 16:156-64. 2011..This report focused on the data regarding each hip joint, and the involvement of acetabular dysplasia with hip OA was analyzed...