Nobuhiko Sugano

Summary

Affiliation: The University of Tokyo
Country: Japan

Publications

  1. pmc Is the transverse acetabular ligament a reliable cup orientation guide?
    Hirohito Abe
    Departments of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan
    Acta Orthop 83:474-80. 2012
  2. doi request reprint Nationwide investigation into adverse tissue reactions to metal debris after metal-on-metal total hip arthroplasty in Japan
    Nobuhiko Sugano
    Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Yamadaoka 2 2 Suita, Osaka, 565 0871, Japan
    J Orthop Sci 19:85-9. 2014
  3. pmc Computer-assisted orthopaedic surgery and robotic surgery in total hip arthroplasty
    Nobuhiko Sugano
    Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan
    Clin Orthop Surg 5:1-9. 2013
  4. doi request reprint In vivo implant fixation of carbon fiber-reinforced PEEK hip prostheses in an ovine model
    Ichiro Nakahara
    Department of Orthopaedic Surgery, Osaka National Hospital, Osaka, Japan
    J Orthop Res 31:485-92. 2013
  5. ncbi request reprint Application of 3D-MR image registration to monitor diseases around the knee joint
    Masaki Takao
    Department of Orthopedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    J Magn Reson Imaging 22:656-60. 2005
  6. doi request reprint MRI-based surgical simulation of transtrochanteric rotational osteotomy for femoral head osteonecrosis
    Tsuyoshi Koyama
    Division of Robotic Therapy, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
    J Orthop Res 27:447-51. 2009
  7. doi request reprint Histological characteristics of the human femoral head in patients with femoral neck fracture
    Takashi Sakai
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2, Yamadaoka, 565 0871, Suita, Japan
    Virchows Arch 461:705-11. 2012
  8. doi request reprint Incidence and natural course of initial polar gaps in Birmingham Hip Resurfacing cups
    Satoshi Nakasone
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    J Arthroplasty 27:1676-82. 2012
  9. pmc A comparison between robotic-assisted and manual implantation of cementless total hip arthroplasty
    Nobuo Nakamura
    Center of Arthroplasty, Kyowakai Hospital, 1 24 1 Kishibe kita, Suita, Osaka, 564 0001, Japan
    Clin Orthop Relat Res 468:1072-81. 2010
  10. pmc Is vertical-center-anterior angle equivalent to anterior coverage of the hip?
    Takashi Sakai
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2, Yamadaoka, 565 0871, Suita, Japan
    Clin Orthop Relat Res 467:2865-71. 2009

Detail Information

Publications63

  1. pmc Is the transverse acetabular ligament a reliable cup orientation guide?
    Hirohito Abe
    Departments of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan
    Acta Orthop 83:474-80. 2012
    ..We investigated the variations in TAL anatomy and the TAL-guided cup orientation...
  2. doi request reprint Nationwide investigation into adverse tissue reactions to metal debris after metal-on-metal total hip arthroplasty in Japan
    Nobuhiko Sugano
    Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Yamadaoka 2 2 Suita, Osaka, 565 0871, Japan
    J Orthop Sci 19:85-9. 2014
    ..However, no epidemiologic study has examined ARMD for MoM hip implants in Japan. The purposes of this study were to research the incidence of ARMD and to identify poorly performing MoM hip implants in Japan...
  3. pmc Computer-assisted orthopaedic surgery and robotic surgery in total hip arthroplasty
    Nobuhiko Sugano
    Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan
    Clin Orthop Surg 5:1-9. 2013
    ..Thus, it is important that the surgeon fully understands what he or she should be trying to achieve in THA for each patient...
  4. doi request reprint In vivo implant fixation of carbon fiber-reinforced PEEK hip prostheses in an ovine model
    Ichiro Nakahara
    Department of Orthopaedic Surgery, Osaka National Hospital, Osaka, Japan
    J Orthop Res 31:485-92. 2013
    ..Cementless fixation can be achieved using HA-coated CFR/PEEK implants, even under load-bearing conditions...
  5. ncbi request reprint Application of 3D-MR image registration to monitor diseases around the knee joint
    Masaki Takao
    Department of Orthopedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    J Magn Reson Imaging 22:656-60. 2005
    ..To estimate the accuracy and consistency of a method using a voxel-based MR image registration algorithm for precise monitoring of knee joint diseases...
  6. doi request reprint MRI-based surgical simulation of transtrochanteric rotational osteotomy for femoral head osteonecrosis
    Tsuyoshi Koyama
    Division of Robotic Therapy, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
    J Orthop Res 27:447-51. 2009
    ..Our surgical simulation is useful for evaluating the postoperative intact ratio and for determining indications for TRO as well as the optimal angle of femoral head rotation and varus angulation...
  7. doi request reprint Histological characteristics of the human femoral head in patients with femoral neck fracture
    Takashi Sakai
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2, Yamadaoka, 565 0871, Suita, Japan
    Virchows Arch 461:705-11. 2012
    ....
  8. doi request reprint Incidence and natural course of initial polar gaps in Birmingham Hip Resurfacing cups
    Satoshi Nakasone
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    J Arthroplasty 27:1676-82. 2012
    ....
  9. pmc A comparison between robotic-assisted and manual implantation of cementless total hip arthroplasty
    Nobuo Nakamura
    Center of Arthroplasty, Kyowakai Hospital, 1 24 1 Kishibe kita, Suita, Osaka, 564 0001, Japan
    Clin Orthop Relat Res 468:1072-81. 2010
    ..The benefits of robotic techniques for implanting femoral components during THA are still controversial...
  10. pmc Is vertical-center-anterior angle equivalent to anterior coverage of the hip?
    Takashi Sakai
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2, Yamadaoka, 565 0871, Suita, Japan
    Clin Orthop Relat Res 467:2865-71. 2009
    ..002). Although VCA-1 in normal hips shows true anterior coverage, the VCA angle does not indicate true anterior coverage in dysplastic hips, and VCA angle measurement in dysplastic hips should be used carefully...
  11. ncbi request reprint Preoperative templating of femoral components on plain X-rays. Rotational evaluation with synthetic X-rays on ORTHODOC
    Takehito Hananouchi
    Department of Orthopedic Surgery, Osaka University Graduate School of Medicine, 2 2 Yamadaoka Suita, Osaka 565 0871, Japan
    Arch Orthop Trauma Surg 127:381-5. 2007
    ....
  12. pmc Tailor-made Surgical Guide Reduces Incidence of Outliers of Cup Placement
    Takehito Hananouchi
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita, 565 0871, Osaka, Japan
    Clin Orthop Relat Res 468:1088-95. 2010
    ..The surgical guide provided more reliable cup insertion compared with conventional techniques. Level of Evidence: Level II, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence...
  13. pmc Modular acetabular reconstructive cup in acetabular revision total hip arthroplasty at a minimum ten year follow-up
    Takashi Sakai
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2, Yamadaoka, 565 0871, Suita, Japan
    Int Orthop 37:605-10. 2013
    ..The purpose of this study was to clarify minimum ten year follow-up results of this cup system with morsellised allografts in revision cases...
  14. pmc High survival of dome pelvic osteotomy in patients with early osteoarthritis from hip dysplasia
    Takashi Sakai
    Department of Orthopedic Surgery, Osaka University Graduate School of Medicine, 2 2, Yamadaoka, Suita 565 0871, Japan
    Clin Orthop Relat Res 470:2573-82. 2012
    ..The dome pelvic osteotomy (DPO) has the advantage of allowing a larger weightbearing surface, and congruity in the sagittal plane presumably would reduce the joint contact stress and perhaps increase longevity...
  15. pmc Proximal bone remodelling differed between two types of titanium long femoral components after cementless revision arthroplasty
    Daiki Iwana
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Kyowakai Hospital, Osaka, Japan
    Int Orthop 32:431-6. 2008
    ..The mean relative bone mass index increased from 21.6% to 31.4%. These results indicate that the configuration and surface coating of the stem have a significant influence on proximal bone remodelling after revision surgery...
  16. ncbi request reprint Application of three-dimensional magnetic resonance image registration for monitoring hip joint diseases
    Masaki Takao
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka 565 0871, Japan
    Magn Reson Imaging 23:665-70. 2005
    ..We believe that this method is sufficiently accurate for monitoring hip joint diseases...
  17. pmc Does the extent of osteonecrosis affect the survival of hip resurfacing?
    Satoshi Nakasone
    Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Yamadaoka 2 2, Suita, Osaka, 565 0871, Japan
    Clin Orthop Relat Res 471:1926-34. 2013
    ..The effect of the extent of osteonecrosis on the survival of hip resurfacing for osteonecrosis of the femoral head (ONFH) has not been well documented, but is a potentially important variable in the decision to perform resurfacing...
  18. ncbi request reprint Effect of robotic milling on periprosthetic bone remodeling
    Takehito Hananouchi
    Department of Orthopedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    J Orthop Res 25:1062-9. 2007
    ..11% in the conventional group, p < 0.05). Our results suggest that robotic milling is effective in facilitating proximal load transfer around the femoral component and minimizing bone loss after cementless THA...
  19. pmc Does CT-based navigation improve the long-term survival in ceramic-on-ceramic THA?
    Nobuhiko Sugano
    Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Yamadaoka 2 2, Suita, Osaka 565 0871, Japan
    Clin Orthop Relat Res 470:3054-9. 2012
    ..Although navigated THA provides improved precision in implant positioning and alignment, it is unclear whether these translate into long-term implant survival...
  20. doi request reprint Tailor-made surgical guide based on rapid prototyping technique for cup insertion in total hip arthroplasty
    Takehito Hananouchi
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    Int J Med Robot 5:164-9. 2009
    ..A surgical guide made by the rapid prototyping (RP) technique for cup insertion in total hip arthroplasty might be useful to avoid malalignment of the cup, which indicates postoperative complications...
  21. ncbi request reprint Five-year results of metal-on-metal resurfacing arthroplasty in Asian patients
    Takashi Nishii
    Department of Orthopaedic Surgery, Osaka University Medical School E3, Suita, Osaka, Japan
    J Arthroplasty 22:176-83. 2007
    ..Metal-on-metal resurfacing arthroplasty in Japanese patients, who have a different distribution of hip diseases from European and American patients, showed similarly promising early clinical results...
  22. ncbi request reprint Longitudinal quantitative evaluation of lesion size change in femoral head osteonecrosis using three-dimensional magnetic resonance imaging and image registration
    Masaki Takao
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita, Osaka 565 0871, Japan
    J Orthop Res 24:1231-9. 2006
    ..We demonstrated that some early lesions detected less than a year after initial steroid treatment can show size reduction with image registration as well as with volume measurements...
  23. doi request reprint Cementless modular total hip arthroplasty with subtrochanteric shortening osteotomy for hips with developmental dysplasia
    Masaki Takao
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Japan
    J Bone Joint Surg Am 93:548-55. 2011
    ....
  24. doi request reprint Gender differences in 3D morphology and bony impingement of human hips
    Ichiro Nakahara
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita, Osaka 5650871, Japan
    J Orthop Res 29:333-9. 2011
    ..In conclusion, significant gender differences were observed in the acetabular and femoral morphology, which led to significant gender differences in ROM until bony impingement...
  25. doi request reprint Eight-year wear analysis in Longevity highly cross-linked polyethylene liners comparing 26- and 32-mm heads
    Ichiro Nakahara
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita, Osaka 565 0871, Japan
    Arch Orthop Trauma Surg 131:1731-7. 2011
    ..We compared the in vivo wear of Longevity highly cross-linked polyethylene liners at 8-year follow-up using 26- or 32-mm cobalt-chromium heads...
  26. ncbi request reprint Effects of rotation on measurement of lower limb alignment for knee osteotomy
    Hideo Kawakami
    Department of Medical Robotics and Image Sciences, Division of Robotic Therapy, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita, 565 0871, Japan
    J Orthop Res 22:1248-53. 2004
    ..2 degrees for internal and external 10 degrees rotation errors in reattaching the osteotomy plane. Rotation may affect measurement of lower limb alignment for knee osteotomy, and 3-D methods are preferable for surgical planning...
  27. ncbi request reprint Anatomic hip range of motion after implantation during total hip arthroplasty as measured by a navigation system
    Hidenobu Miki
    Department of Orthopaedic Surgery, Medical School of Osaka University, Osaka, Japan
    J Arthroplasty 22:946-52. 2007
    ..Almost all reference hip ROMs used in previous simulations were smaller than these values. Therefore, wider hip ROM values should be used as parameters for such simulations...
  28. ncbi request reprint Gait analysis system for assessment of dynamic loading axis of the knee
    Hideo Kawakami
    Department of Medical Robotics and Image Sciences, Division of Robotic Therapy, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita, Osaka 565 0871, Japan
    Gait Posture 21:125-30. 2005
    ..6% of joint width in the lateral direction (JWLD) on the proximal tibia joint. This system can provide clinically useful information for evaluation of the dynamic loading axis on the knee joint surface...
  29. doi request reprint The results of a press-fit-only technique for acetabular fixation in hip dysplasia
    Masaki Takao
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    J Arthroplasty 26:562-8. 2011
    ..The minimum cup-CE angle was 8.4° (mean, 26.3°). Bone-cup contact of more than 8.4° of the cup-CE angle was large enough for press-fit cups to resist superior directed loads during this follow-up period...
  30. doi request reprint Ultrasound screening of periarticular soft tissue abnormality around metal-on-metal bearings
    Takashi Nishii
    Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita, Osaka, Japan
    J Arthroplasty 27:895-900. 2012
    ..Ultrasound examination provides sensitive screening of soft tissue reactions around MoM bearings and may be useful in monitoring progression and defining treatment for periarticular soft tissue abnormalities...
  31. pmc Natural course of asymptomatic deep venous thrombosis in hip surgery without pharmacologic thromboprophylaxis in an Asian population
    Kosuke Tsuda
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
    Clin Orthop Relat Res 468:2430-6. 2010
    ..The clinical importance of asymptomatic deep venous thrombosis in elective hip surgery is not clearly known...
  32. ncbi request reprint Computer-assisted spherical osteotomy with a curved-bladed Tuke Saw
    Tsuyoshi Koyama
    Division of Robotic Therapy, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
    Comput Aided Surg 11:202-8. 2006
    ..It can thus be concluded that the curved-bladed Tuke Saw is more accurate and easier to use than the conventional curved chisel...
  33. doi request reprint Synovial joint fluid cytokine levels in hip disease
    Hirohito Abe
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita, Osaka 5650871, Japan
    Rheumatology (Oxford) 53:165-72. 2014
    ..The purpose of this study was to evaluate cytokine level characteristics in the hip joint fluid, including rapidly destructive coxopathy (RDC), OA, osteonecrosis (ON) of the femoral head and RA...
  34. doi request reprint Comparison of navigation accuracy in THA between the mini-anterior and -posterior approaches
    Takehito Hananouchi
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    Int J Med Robot 5:20-5. 2009
    ..The accuracy of a CT-based hip navigation might depend on surgical approaches, resulting in varying accuracy of implant alignment...
  35. ncbi request reprint Application of computed tomography-based navigation for revision total hip arthroplasty
    Nobuo Nakamura
    Center of Arthroplasty, Kyowakai Hospital, Suita City, Osaka, Japan
    J Arthroplasty 28:1806-10. 2013
    ..7° ± 3° (-5° to 8°) for inclination and -0.7° ± 3° (-12° to 5°) for anteversion. Compared with the primary THA group, none of these parameters were significantly different. This navigation system was useful even in revision THA...
  36. ncbi request reprint Serious metallosis of a metal head due to fragmented ceramic screws in a cemented THA
    Hidenobu Miki
    Department of Orthopedic Surgery, Osaka University Graduate School of Medicine, Yamadaoka 2 2, Osaka, Japan
    Arch Orthop Trauma Surg 126:192-6. 2006
    ..And, when a surgical revision is planned, the surgeon should be prepared to exchange with a new ceramic head...
  37. doi request reprint Three-dimensional topographical variation of femoral cartilage T2 in healthy volunteer knees
    Toshiyuki Shiomi
    Department of Orthopaedic Surgery, Osaka University Medical School, Suita, Osaka, Japan
    Skeletal Radiol 42:363-70. 2013
    ..The purpose of this work was to reveal characteristic 3D distribution of T2 values in femoral cartilage in healthy volunteer knees...
  38. doi request reprint Novel surface modifications of carbon fiber-reinforced polyetheretherketone hip stem in an ovine model
    Ichiro Nakahara
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
    Artif Organs 36:62-70. 2012
    ..Bone resorption and osteopenia observed with the Ti stems was not found with the CFRP design...
  39. doi request reprint Interfacial shear strength of bioactive-coated carbon fiber reinforced polyetheretherketone after in vivo implantation
    Ichiro Nakahara
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    J Orthop Res 30:1618-25. 2012
    ..The achieved interfacial shear strength of the HA-coated CFR/PEEK implant is of the same level as that of grit-blasted titanium alloy with HA...
  40. ncbi request reprint Accuracy of a 3D fluoroscopic navigation system using a flat-panel detector-equipped C-arm
    Masaki Takao
    Department of Orthopaedic Sugery, Osaka University Graduate School of Medicine, Japan
    Comput Aided Surg 16:234-9. 2011
    ....
  41. doi request reprint CT-based planning of a single-radius femoral component in total knee arthroplasty using the ROBODOC system
    Takehito Hananouchi
    Department of Orthopedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    Comput Aided Surg 13:23-9. 2008
    ....
  42. doi request reprint Repair in osteonecrosis of the femoral head: MR imaging features at long-term follow-up
    Masaki Takao
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita 565 0871 Osaka, Japan
    Clin Rheumatol 29:841-8. 2010
    ..In conclusion, reparative process was limited to the periphery of osteonecrosis over a long period of time unless collapse had occurred. If collapse had ceased minimally, the reconstructive repair process could be facilitated...
  43. doi request reprint Different magnetic resonance imaging features in two types of nontraumatic rabbit osteonecrosis models
    Masaki Takao
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka 565 0871, Japan
    Magn Reson Imaging 27:233-9. 2009
    ..These results indicated that development of necrotic lesions in the single-dose steroid ON model was not accompanied by as diffuse a femoral hemodynamic change as the two-dose horse serum ON model...
  44. pmc Extent of osteonecrosis on MRI predicts humeral head collapse
    Takashi Sakai
    Department of Orthopedic Surgery, Osaka University Medical School, 2 2, Yamadaoka, 565 0871, Suita, Osaka, Japan
    Clin Orthop Relat Res 466:1074-80. 2008
    ..The extent of a necrotic lesion on MRI is useful to predict collapse of the humeral head...
  45. doi request reprint Minimum five-year follow-up wear measurement of longevity highly cross-linked polyethylene cup against cobalt-chromium or zirconia heads
    Ichiro Nakahara
    Department of Orthopaedic Surgery, Osaka University, Graduate School of Medicine, Suita, Osaka, Japan
    J Arthroplasty 25:1182-7. 2010
    ..Osteolysis was not observed in any hips in either group. In conclusion, no advantage was seen for the 26-mm zirconia head compared with the 26-mm cobalt-chromium head in this period...
  46. doi request reprint Incidence and predictors of osteonecrosis among cyclosporin- or tacrolimus-treated renal allograft recipients
    Masaki Takao
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Yamadaoka 2 2, Suita, 565 0871, Osaka, Japan
    Rheumatol Int 31:165-70. 2011
    ..In the patients treated with improved immunosuppressive regimens, delayed graft function was a significant early predictor of osteonecrosis...
  47. ncbi request reprint Suctioning prevents emboli during insertion of acetabular components without holes
    Takehito Hananouchi
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Japan
    Clin Orthop Relat Res 457:150-5. 2007
    ..Our data suggest the suctioning technique is effective to reduce embolic events by cup without holes which may cause intraoperative embolic complications...
  48. ncbi request reprint Clinical accuracy evaluation of femoral canal preparation using the ROBODOC system
    Shunsaku Nishihara
    Department of Orthopaedic Surgery, Osaka University Medical School, 2 2 Yamadaoka, 565 0871, Suita, Japan
    J Orthop Sci 9:452-61. 2004
    ..Clinical femoral canal preparation using the ROBODOC system results in a high degree of accuracy...
  49. ncbi request reprint Effectiveness of the ROBODOC system in preventing intraoperative pulmonary embolism
    Keisuke Hagio
    Department of Orthopaedic Surgery, Osaka University Medical School, 2 2 Yamadaoka, Suita 565 0871, Osaka, Japan
    Acta Orthop Scand 74:264-9. 2003
    ..The incidence of severe embolic events was lower in group 1 than in group 2. Our findings suggest that the ROBODOC femoral milling system may reduce the risk of clinically significant pulmonary embolism during cementless THA...
  50. ncbi request reprint Accuracy of angle and position of the cup using computed tomography-based navigation systems in total hip arthroplasty
    Daiki Iwana
    Department of Orthopaedic Surgery, Kyowakai Hospital, Osaka, Japan
    Comput Aided Surg 18:187-94. 2013
    ..The objectives of this study were to evaluate the accuracy of computed tomography (CT)-based navigation and to investigate whether the level of surgeon experience affects the accuracy of cup positioning under navigation...
  51. ncbi request reprint Comparison between hand rasping and robotic milling for stem implantation in cementless total hip arthroplasty
    Shunsaku Nishihara
    Department of Orthopaedic Surgery, Osaka University Medical School, Suita, Osaka, Japan
    J Arthroplasty 21:957-66. 2006
    ..Hand rasping had the potential to cause intraoperative femoral fractures, undersizing of the stem, unexpectedly higher vertical seating, and unexpected femoral anteversion causing inferior implant fit...
  52. doi request reprint Robot-assisted primary cementless total hip arthroplasty using surface registration techniques: a short-term clinical report
    Nobuo Nakamura
    Center of Arthroplasty, Kyowakai Hospital, 1 24 1 Kishibe kita, Suita City, Osaka, 564 0001, Japan
    Int J Comput Assist Radiol Surg 4:157-62. 2009
    ....
  53. doi request reprint Computational measurement of joint space width and structural parameters in normal hips
    Takashi Nishii
    Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, 2 2 Yamadaoka, Suita, Osaka 565 0871, Japan
    Arch Orthop Trauma Surg 132:591-8. 2012
    ..We investigated influential factors on JSW using semiautomatic computational software on pelvic radiographs in asymptomatic subjects without radiological osteoarthritic findings...
  54. doi request reprint Eleven- to 14-year follow-up results of cementless total hip arthroplasty using a third-generation alumina ceramic-on-ceramic bearing
    Nobuhiko Sugano
    Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Osaka, Japan
    J Arthroplasty 27:736-41. 2012
    ..7% for the overall implants, respectively. We conclude that cementless THA with the third-generation ceramic-on-ceramic hip bearing provided an excellent survivorship and eliminated periprosthetic osteolysis for 11 to 14 years...
  55. doi request reprint The vascular network in the femoral head and neck after hip resurfacing
    Takehito Hananouchi
    Department of Orthopedic Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
    J Arthroplasty 25:146-51. 2010
    ..These results suggest that deterioration of the intraosseous vascular network around the head-neck junction after RHA was not severe enough to induce complete avascularity...
  56. doi request reprint Evaluation of the accuracy of computed tomography-based navigation for femoral stem orientation and leg length discrepancy
    Makoto Kitada
    Center of Arthroplasty, Kyowakai Hospital, Osaka, Japan
    J Arthroplasty 26:674-9. 2011
    ..8° (range, -4° to 3°) for valgus angle of stem, and 1.3 ± 4.1 mm (range, -6 to 10 mm) for leg length. Although this system may need further improvement for stem orientation, it was helpful for intraoperative leg length adjustment...
  57. pmc Comparison of femoral morphology and bone mineral density between femoral neck fractures and trochanteric fractures
    Yuki Maeda
    Department of Orthopaedic Surgery, Osaka Minami Medical Center, Osaka, Japan
    Clin Orthop Relat Res 469:884-9. 2011
    ..Many studies that analyzed bone mineral density (BMD) and skeletal factors of hip fractures were based on uncalibrated radiographs or dual-energy xray absorptiometry (DXA)...
  58. doi request reprint Distribution of TRAP-positive cells and expression of HIF-1alpha, VEGF, and FGF-2 in the reparative reaction in patients with osteonecrosis of the femoral head
    Weizhe Li
    Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
    J Orthop Res 27:694-700. 2009
    ....
  59. ncbi request reprint Measurement of lesion area and volume by three-dimensional spoiled gradient-echo MR imaging in osteonecrosis of the femoral head
    Yuki Kishida
    Department of Orthopaedic Surgery, Osaka University Medical School, 2 2 Yamadaoka, Suita, Osaka, 564 0871, Japan
    J Orthop Res 21:850-8. 2003
    ..Three-dimensional SPGR imaging provides more accurate measurements of the area and volume of a necrotic lesion than T1-weighted SE imaging...
  60. doi request reprint In vivo kinematic analysis of squatting after total hip arthroplasty
    Junichiro Koyanagi
    Department of Orthopaedic Biomaterial Science, Osaka University Graduate School of Medicine, Suita, Japan
    Clin Biomech (Bristol, Avon) 26:477-83. 2011
    ..The in vivo kinematics of squatting after total hip arthroplasty is unclear. The purpose of the present study was to determine the range of motion of the hip joint during squatting after total hip arthroplasty...
  61. ncbi request reprint Proximal femoral bone mineral density after resurfacing total hip arthroplasty and after standard stem-type cementless total hip arthroplasty, both having similar neck preservation and the same articulation type
    Yasuhisa Hayaishi
    Department of Orthopaedic Surgery Osaka University Medical School, Osaka, Japan
    J Arthroplasty 22:1208-13. 2007
    ....
  62. ncbi request reprint A novel system of four-dimensional motion analysis after total hip arthroplasty
    Keisuke Hagio
    Department of Orthopaedic Surgery, Osaka University Medical School, 2 2 Yamadaoka, Suita 565 0871, Osaka, Japan
    J Orthop Res 22:665-70. 2004
    ..Further investigation using this system can help determine safe ranges of motion for preventing hip dislocation, improving the accuracy of individualized guidance for patients regarding postoperative activities...