| JaLCDOI | 10.18926/AMO/61437 |
|---|---|
| FullText URL | 75_1_71.pdf |
| Author | Sanki, Tomoaki| Tetsunaga, Tomonori| Furumatsu, Takayuki| Yamada, Kazuki| Kawamura, Yoshi| Ozaki, Toshifumi| |
| Abstract | Intra-operative acetabular fracture is a total hip arthroplasty complication that can occur during cementless cup insertion, especially in osteoporotic patients. We conducted this biomechanical study to investigate the impact resistance of the acetabulum with simulated bones of different density by drop-weight impact testing. Low- and high-density polyurethane foam blocks were used as osteoporotic and healthy bone models, respectively. Polyurethane blocks were used as the acetabular cancellous bone. Composite sheets were used as the acetabu-lum’s medial cortex. The testing revealed that the osteoporotic bone model’s impact resistance was significantly lower than that the healthy bone model’. In the healthy bone model, even thin acetabular cancellous bone with ≥ 1 mm acetabulum medial cortex was less likely to fracture. In the osteoporotic bone model, fracture was pos-sible without ≥ 1 mm medial cortex of the acetabulum and thick acetabular cancellous bone. Although impac-tion resistance differs due to bone quality, the impaction resistance in this osteoporotic bone model was equiv-alent to that healthy bone model’s when a thick medial wall was present. To avoid intra-operative acetabulum fracture, surgeons should consider both the bone quality and the thicknesses of the medial cortex and acetabu-lar cancellous bone. |
| Keywords | intra-operative acetabular fracture drop weight impact testing total hip arthroplasty impact resistance |
| Amo Type | Original Article |
| Published Date | 2021-02 |
| Publication Title | Acta Medica Okayama |
| Volume | volume75 |
| Issue | issue1 |
| Publisher | Okayama University Medical School |
| Start Page | 71 |
| End Page | 77 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | 英語 |
| Copyright Holders | CopyrightⒸ 2021 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 33649616 |
| FullText URL | fulltext.pdf |
|---|---|
| Author | Nakata, Eiji| Sugihara, Shinsuke| Sugawara, Yoshifumi| Nakahara, Ryuichi| Furumatsu, Takayuki| Tetsunaga, Tomonori| Kunisada, Toshiyuki| Nakanishi, Kazuo| Ozaki, Toshifumi| |
| Keywords | bone metastasis multidisciplinary treatment skeletal-related event malignant spinal cord compression neurological deficit |
| Published Date | 2020-02-20 |
| Publication Title | Oncology Letters |
| Volume | volume19 |
| Issue | issue4 |
| Publisher | Spandidos Publications |
| Start Page | 3137 |
| End Page | 3144 |
| ISSN | 1792-1074 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © Nakata et al. |
| File Version | publisher |
| PubMed ID | 32218864 |
| DOI | 10.3892/ol.2020.11415 |
| Web of Science KeyUT | 000523763900064 |
| Related Url | isVersionOf https://doi.org/10.3892/ol.2020.11415 |
| Author | Kodama, Yuya| Furumatsu, Takayuki| Okazaki, Yuki| Takihira, Shota| Hiranaka, Takaaki| Miyazawa, Shinichi| Kamatsuki, Yusuke| Ozaki, Toshifumi| |
|---|---|
| Keywords | Medial meniscus Posterior root tear Transtibial pullout repair Meniscal healing Cartilage degeneration |
| Note | This is a post-peer-review, pre-copyedit version of an article published in Knee Surgery, Sports Traumatology, Arthroscopy. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00167-020-06332-7. <br>This fulltext is available in Oct. 2021.| |
| Published Date | 2020-08-28 |
| Publication Title | Knee Surgery, Sports Traumatology, Arthroscopy |
| Publisher | Springer |
| ISSN | 0942-2056 |
| NCID | AA10973641 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| File Version | author |
| PubMed ID | 33112966 |
| DOI | 10.1007/s00167-020-06332-7 |
| Web of Science KeyUT | 000584906000002 |
| Related Url | isVersionOf https://doi.org/10.1007/s00167-020-06332-7 |
| FullText URL | fulltext.pdf |
|---|---|
| Author | Okazaki, Yoshiki| Furumatsu, Takayuki| Yamaguchi, Takuya| Kodama, Yuya| Kamatsuki, Yusuke| Masuda, Shin| Okazaki, Yuki| Hiranaka, Takaaki| Zhang, Ximing| Ozaki, Toshifumi| |
| Keywords | Medial meniscus Posterior root tear Osteoarthritis Meniscal volume Medial extrusion Three-dimensional magnetic resonance imaging Flexed-knee position |
| Note | This is a post-peer-review, pre-copyedit version of an article published in Knee Surgery, Sports Traumatology, Arthroscopy. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00167-019-05580-6.| |
| Published Date | 2019-06-26 |
| Publication Title | Knee Surgery, Sports Traumatology, Arthroscopy |
| Volume | volume28 |
| Issue | issue11 |
| Publisher | Springer |
| Start Page | 3405 |
| End Page | 3415 |
| ISSN | 0942-2056 |
| NCID | AA10973641 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| File Version | author |
| PubMed ID | 31243505 |
| DOI | 10.1007/s00167-019-05580-6 |
| Web of Science KeyUT | 000584542500002 |
| Related Url | isVersionOf https://doi.org/10.1007/s00167-019-05580-6 |
| FullText URL | fulltext.pdf |
|---|---|
| Author | Kuwahara, Miho| Kadoya, Koichi| Kondo, Sei| Fu, Shanqi| Miyake, Yoshiko| Ogo, Ayako| Ono, Mitsuaki| Furumatsu, Takayuki| Nakata, Eiji| Sasaki, Takako| Minagi, Shogo| Takigawa, Masaharu| Kubota, Satoshi| Hattori, Takako| |
| Keywords | cellular communication network factor 3 CCN3 NOV primary chondrocytes aging oxidative stress senescence p21 p53 SASP |
| Published Date | 2020-10-13 |
| Publication Title | International Journal of Molecular Sciences |
| Volume | volume21 |
| Issue | issue20 |
| Publisher | MDPI |
| Start Page | 7556 |
| ISSN | 1422-0067 |
| NCID | AA12038549 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © 2020 by the authors. |
| File Version | publisher |
| PubMed ID | 33066270 |
| DOI | 10.3390/ijms21207556 |
| Web of Science KeyUT | 000585557400001 |
| Related Url | isVersionOf https://doi.org/10.3390/ijms21207556 |
| FullText URL | fulltext.pdf Figure.pptx Tables.pptx |
|---|---|
| Author | Kodama, Yuya| Furumatsu, Takayuki| Masuda, Shin| Okazaki, Yoshiki| Kamatsuki, Yusuke| Okazaki, Yuki| Hiranaka, Takaaki| Miyazawa, Shinichi| Yasumitsu, Masaharu| Ozaki, Toshifumi| |
| Keywords | Medial meniscus Posterior root tear Transtibial fixation Meniscus extrusion Open magnetic resonance imaging |
| Note | This is a post-peer-review, pre-copyedit version of an article published in Knee Surgery, Sports Traumatology, Arthroscopy. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00167-019-05810-x.</br>| |
| Published Date | 2019-11-28 |
| Publication Title | Knee Surgery, Sports Traumatology, Arthroscopy |
| Volume | volume28 |
| Issue | issue11 |
| Publisher | Springer |
| Start Page | 3416 |
| End Page | 3425 |
| ISSN | 0942-2056 |
| NCID | AA10973641 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| File Version | author |
| PubMed ID | 31781798 |
| DOI | 10.1007/s00167-019-05810-x |
| Web of Science KeyUT | 000575537100001 |
| Related Url | isVersionOf https://doi.org/10.1007/s00167-019-05810-x |
| JaLCDOI | 10.18926/AMO/60373 |
|---|---|
| FullText URL | 74_4_345.pdf |
| Author | Tanaka, Takaaki| Furumatsu, Takayuki| Hiranaka, Takaaki| Okazaki, Yuki| Masudaa, Kenji| Senoa, Noritaka| Ozaki, Toshifumi| |
| Abstract | The aim of this study was to evaluate tunnel coalition and inter-tunnel distance by comparing the tibial tunnel position in double-bundle anterior cruciate ligament (ACL) reconstruction performed with a conventional guide versus a posterolateral (PL) divergence (PLD) guide. Subjects were 43 patients (ACL tip aimer: 20 knees; PLD guide: 23 knees) who underwent double-bundle ACL reconstruction between September 2014 and December 2017. In all cases, the tibial tunnel position, tunnel edge distance and tunnel angles were evaluated based on CT images. Clinical outcome was evaluated using the Lachman test, pivot-shift test, and Lysholm score. Tibial tunnel positions were similar between the conventional and PLD guide groups, while tibial tunnel edge distance was significantly less in the conventional group. Tunnel coalition was observed in 5 knees in the conventional and no knees in the PLD guide group. Distance between two tibial tunnel centers was 9.1 mm for the tip aimer, and 10.5 mm for the PLD guide. Creation of the PL tunnel tended to involve insertion from a more medial aspect for the PLD guide group than the conventional guide group. No differences in clinical outcomes were noted. The PLD guide can be used to create anatomically-positioned PL tunnels, and reduce the probability of occurrence of tunnel coalition. |
| Keywords | anterior cruciate ligament reconstruction tibial tunnel position PL divergence guide tunnel coalition |
| Amo Type | Original Article |
| Published Date | 2020-08 |
| Publication Title | Acta Medica Okayama |
| Volume | volume74 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 345 |
| End Page | 350 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | 英語 |
| Copyright Holders | CopyrightⒸ 2020 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 32843766 |
| Web of Science KeyUT | 000562508700010 |
| NAID | 120006880212 |
| Author | Okazaki, Yuki| Furumatsu, Takayuki| Kamatsuki, Yusuke| Okazaki, Yoshiki| Masuda, Shin| Hiranaka, Takaaki| Kodama, Yuya| Miyazawa, Shinichi| Ozaki, Toshifumi| |
|---|---|
| Keywords | Anterior cruciate ligament Lateral meniscus Posterior root tear Transtibial pullout repair Meniscus extrusion |
| Note | This fulltext is available in Apr. 2021.| |
| Published Date | 2020-04-08 |
| Publication Title | Orthopaedics & Traumatology: Surgery & Research |
| Volume | volume106 |
| Issue | issue3 |
| Publisher | Elsevier |
| Start Page | 469 |
| End Page | 473 |
| ISSN | 1877-0568 |
| Content Type | Journal Article |
| language | 英語 |
| File Version | Author |
| PubMed ID | 32278734 |
| DOI | 10.1016/j.otsr.2019.10.022 |
| Web of Science KeyUT | 000539660200014 |
| Related Url | isVersionOf https://doi.org/10.1016/j.otsr.2019.10.022 |
| Author | Hiranaka, Takaaki| Furumatsu, Takayuki| Okazaki, Yuki| Yamawaki, Tadashi| Okazaki, Yoshiki| Kodama, Yuya| Kamatsuki, Yusuke| Ozaki, Toshifumi| |
|---|---|
| Keywords | Medial meniscus Posterior root tear Bilateral injury Predictor Medial tibial slope Sensitivity and specificity |
| Note | This is a post-peer-review, pre-copyedit version of an article published in Knee Surgery, Sports Traumatology, Arthroscopy. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00167-020-06079-1. </br>This fulltext is available in June 2021.| |
| Published Date | 2020-06-01 |
| Publication Title | Knee Surgery, Sports Traumatology, Arthroscopy |
| Publisher | Springer |
| ISSN | 0942-2056 |
| NCID | AA10973641 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| File Version | Author |
| PubMed ID | 32488369 |
| DOI | 10.1007/s00167-020-06079-1 |
| Web of Science KeyUT | 000538465000003 |
| Related Url | isVersionOf https://doi.org/10.1007/s00167-020-06079-1 |
| FullText URL | fulltext.pdf |
|---|---|
| Author | Hiranaka, Takaaki| Furumatsu, Takayuki| Tanaka, Takaaki| Okazaki, Yuki| Kodama, Yuya| Kamatsuki, Yusuke| Masuda, Kenji| Seno, Noritaka| Ozaki, Toshifumi| |
| Keywords | anterior cruciate ligament knee pullout suture screw fixation tibial eminence avulsion fracture |
| Published Date | 2020-06-03 |
| Publication Title | Journal of Orthopaedic Surgery |
| Volume | volume28 |
| Issue | issue2 |
| Publisher | SAGE Publications |
| Start Page | 2309499020918681 |
| ISSN | 2309-4990 |
| NCID | AA11004541 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © The Author(s) 2020 |
| File Version | publisher |
| PubMed ID | 32489139 |
| DOI | 10.1177/2309499020918681 |
| Web of Science KeyUT | 000539749100001 |
| Related Url | isVersionOf https://doi.org/10.1177/2309499020918681 |
| Author | Kamatsuki, Yusuke| Furumatsu, Takayuki| Hiranaka, Takaaki| Okazaki, Yoshiki| Okazaki, Yuki| Kodama, Yuya| Hino, Tomohito| Masuda, Shin| Miyazawa, Shinichi| Ozaki, Toshifumi| |
|---|---|
| Keywords | Medial meniscus Posterior root tear Pullout repair Tibial tunnel Meniscus extrusion Three-dimensional CT |
| Note | This fulltext is available in May 2021.| |
| Published Date | 2020-05-25 |
| Publication Title | Knee Surgery, Sports Traumatology, Arthroscopy |
| Publisher | Springer |
| ISSN | 09422056 |
| NCID | AA10973641 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| File Version | author |
| PubMed ID | 32451621 |
| DOI | 10.1007/s00167-020-06070-w |
| Web of Science KeyUT | 000535430500004 |
| Related Url | isVersionOf https://doi.org/10.1007/s00167-020-06070-w |
| Author | Okazaki, Yuki| Furumatsu, Takayuki| Kamatsuki, Yusuke| Nishida, Keiichiro| Nasu, Yoshihisa| Nakahara, Ryuichi| Saito, Taichi| Ozaki, Toshifumi| |
|---|---|
| Note | This fulltext is available in March. 2021.| |
| Published Date | 2020-03-26 |
| Publication Title | Journal of Orthopaedic Science |
| Publisher | Elsevier |
| ISSN | 09492658 |
| NCID | AA11052566 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © 2020 The Japanese Orthopaedic Association. |
| File Version | author |
| PubMed ID | 32223991 |
| DOI | 10.1016/j.jos.2020.02.015 |
| Related Url | isVersionOf https://doi.org/10.1016/j.jos.2020.02.015 |
| Author | Hiranaka, Takaaki| Furumatsu, Takayuki| Kamatsuki, Yusuke| Miyazawa, Shinichi| Okazaki, Yoshiki| Masuda, Shin| Okazaki, Yuki| Kodama, Yuya| Ozaki, Toshifumi| |
|---|---|
| Keywords | Medial meniscus posterior root tear Pullout repair Tibial tunnel Meniscal healing |
| Note | This fulltext is available in Apr. 2021.| |
| Published Date | 2020-04-02 |
| Publication Title | The Knee |
| Volume | volume27 |
| Issue | issue3 |
| Publisher | Elsevier |
| Start Page | 899 |
| End Page | 905 |
| ISSN | 0968-0160 |
| NCID | AA10996272 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © 2020 Elsevier B.V. |
| File Version | author |
| PubMed ID | 32249020 |
| DOI | 10.1016/j.knee.2020.02.025 |
| Web of Science KeyUT | 000542165100038 |
| Related Url | isVersionOf https://doi.org/10.1016/j.knee.2020.02.025 |
| Author | Furumatsu, Takayuki| Okazaki, Yuki| Hiranaka, Takaaki| Kodama, Yuya| Kamatsuki, Yusuke| Okazaki, Yoshiki| Zhang, Ximing| Ozaki, Toshifumi| |
|---|---|
| Note | This fulltext is available in Apr. 2021.| |
| Published Date | 2020-04-10 |
| Publication Title | Journal of Orthopaedic Science |
| Publisher | Elsevier |
| ISSN | 09492658 |
| NCID | AA11052566 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © 2020 The Japanese Orthopaedic Association. |
| File Version | author |
| PubMed ID | 32284294 |
| DOI | 10.1016/j.jos.2020.03.012 |
| Related Url | isVersionOf https://doi.org/10.1016/j.jos.2020.03.012 |
| Author | Hiranaka, Takaaki| Furumatsu, Takayuki| Miyazawa, Shinichi| Okazaki, Yoshiki| Okazaki, Yuki| Takihira, Shota| Kodama, Yuya| Kamatsuki, Yusuke| Masuda, Shin| Saito, Taichi| Ozaki, Toshifumi| |
|---|---|
| Keywords | Medial meniscus posterior root tear Transtibial pullout repair Modified Mason-Allen suture Two simple stitches Clinical outcomes |
| Note | This fulltext is available in May 2021.| |
| Published Date | 2020-05-11 |
| Publication Title | The Knee |
| Volume | volume27 |
| Issue | issue3 |
| Publisher | Elsevier |
| Start Page | 701 |
| End Page | 708 |
| ISSN | 0968-0160 |
| NCID | AA10996272 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © 2020 Elsevier B.V. |
| File Version | author |
| PubMed ID | 32563426 |
| DOI | 10.1016/j.knee.2020.04.023 |
| Web of Science KeyUT | 000542165100013 |
| Related Url | isVersionOf https://doi.org/10.1016/j.knee.2020.04.023 |
| Author | Hiranaka, Takaaki| Furumatsu, Takayuki| Kamatsuki, Kamatsuki| Sugiu, Kazuhisa| iyazawa, Shinichi| Okazaki, Yoshiki| Masuda, Shin| Okazaki, Yuki| Kodama, Yuya| Ozaki, Toshifumi| |
|---|---|
| Keywords | Anterior cruciate ligament reconstruction Chondral damage Meniscal repair |
| Note | This fulltext is available in Feb. 2022.| |
| Published Date | 2020-04 |
| Publication Title | Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology |
| Volume | volume20 |
| Publisher | Elsevier |
| Start Page | 1 |
| End Page | 5 |
| ISSN | 22146873 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| File Version | author |
| PubMed ID | 32042596 |
| DOI | 10.1016/j.asmart.2020.01.001 |
| Web of Science KeyUT | 000526087700001 |
| Related Url | isVersionOf https://doi.org/10.1016/j.asmart.2020.01.001 |
| FullText URL | Knee_fulltext.pdf Knee_figure.pptx |
|---|---|
| Author | Okazaki, Yuki| Furumatsu, Takayuki| Okazaki, Yoshiki| Masuda, Shin| Hiranaka, Takaaki| Kodama, Yuya| Kamatsuki, Yusuke| Miyazawa, Shinichi| Tetsunaga, Tomonori| Ozaki, Toshifumi| |
| Keywords | Magnetic resonance imaging Medial meniscus Meniscus extrusion Posterior root tear Three-dimensional assessment |
| Published Date | 2020-01-01 |
| Publication Title | The Knee |
| Volume | volume27 |
| Issue | issue1 |
| Publisher | Elsevier |
| Start Page | 132 |
| End Page | 139 |
| ISSN | 0968-0160 |
| NCID | AA10996272 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| File Version | author |
| PubMed ID | 31882388 |
| DOI | 10.1016/j.knee.2019.09.005 |
| Web of Science KeyUT | 000519666300017 |
| Related Url | isVersionOf https://doi.org/10.1016/j.knee.2019.09.005 |
| Author | Okazaki, Yoshiki| Furumatsu, Takayuki| Yamauchi, Takatsugu| Okazaki, Yuki| Kamatsuki, Yusuke| Hiranaka, Takaaki| Kajiki, Yuya| Zhang, Ximing| Ozaki, Toshifumi| |
|---|---|
| Keywords | medial meniscus posterior root tear transtibial repair meniscal volume medial extrusion three-dimensional magnetic resonance imaging |
| Note | This fulltext is available in Apr. 2021.| |
| Published Date | 2020-04-06 |
| Publication Title | Knee Surgery, Sports Traumatology, Arthroscopy |
| Volume | volume28 |
| Publisher | Springer |
| Start Page | 3435 |
| End Page | 3442 |
| ISSN | 09422056 |
| NCID | AA10973641 |
| Content Type | Journal Article |
| language | 英語 |
| OAI-PMH Set | 岡山大学 |
| File Version | author |
| PubMed ID | 32253480 |
| DOI | 10.1007/s00167-020-05953-2 |
| Web of Science KeyUT | 000525297800001 |
| Related Url | isVersionOf https://doi.org/10.1007/s00167-020-05953-2 |
| JaLCDOI | 10.18926/AMO/57957 |
|---|---|
| FullText URL | 74_1_77.pdf |
| Author | Endo, Hirosuke| Akazawa, Hirofumi| Yashiro, Masato| Yamada, Kazuki| Sanki, Tomoaki| Tetsunaga, Tomonori| Nishida, Keiichiro| Furumatsu, Takayuki| Ozaki, Toshifumi| |
| Abstract | Idiopathic chondrolysis of the hip (ICH), a very rare disorder of unknown etiology, occurs mainly in female adolescents. Characterized by pain, limp, stiffness and radiological narrowing joint space from the rapid destruction of the articular cartilage, ICH sometimes results in ankyloses. We present the case of a 10-year-old girl diagnosed with ICH based on arthroscopic inspection and synovium biopsy. The femoral deformity appeared gradually, like a cam-type femoroacetabular impingement. She was treated with intensive rehabilitation and immunosuppressive drug. We later performed an arthroscopic bumpectomy for residual symptoms. She achieved a favorable outcome as a 15-year-old at the latest follow-up. |
| Keywords | idiopathic chondrolysis hip joint medication bump arthroscopy |
| Amo Type | Case Report |
| Published Date | 2020-02 |
| Publication Title | Acta Medica Okayama |
| Volume | volume74 |
| Issue | issue1 |
| Publisher | Okayama University Medical School |
| Start Page | 77 |
| End Page | 81 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | 英語 |
| Copyright Holders | CopyrightⒸ 2020 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 32099253 |
| Web of Science KeyUT | 000516606200012 |
| NAID | 120006795624 |
| JaLCDOI | 10.18926/AMO/57947 |
|---|---|
| FullText URL | 74_1_7.pdf |
| Author | Sanki, Tomoaki| Endo, Hirosuke| Tetsunaga, Tomonori| Furumatsu, Takayuki| Yamada, Kazuki| Ozaki, Toshifumi| |
| Abstract | We investigated the relationship between the initial contact status and stress shielding in total hip arthroplasty (THA) using fit-and-fill type straight-stem implants. In addition we evaluated the clinical and radiographic outcomes. Subjects were 100 hips of 94 patients who underwent THA and were followed-up for ≥10 years. Contact areas with the femoral cortical bone were investigated according to the zonal distribution of Gruen using postoperative CT images. Depending on the number of contact areas, the patients were classified into high contact [HC], medium contact [MC], and low contact [LC] groups. Radiographic and clinical outcomes were evaluated. In the HC group (20 hips), severe stress shielding was observed in 12 hips, which was statistically significant (p=0.008). In the LC group (29 hips), mild stress shielding was observed in 27 hips which was statistically significant (p<0.001). No significant differences were observed among the 3 groups in clinical outcomes, Harris hip score (p=0.719) or Japanese Orthopedic Association (JOA) score (p=0.301). In insertion of cementless collared fit-and-fill type straight-stem implants, severe late stress shielding of the femoral bone may occur if high contact of the femoral component is achieved. However, the degree of stress shielding does not result in adverse clinical outcomes. |
| Keywords | fit-and-fill stress shielding cementless straight stem total hip arthroplasty |
| Amo Type | Original Article |
| Published Date | 2020-02 |
| Publication Title | Acta Medica Okayama |
| Volume | volume74 |
| Issue | issue1 |
| Publisher | Okayama University Medical School |
| Start Page | 7 |
| End Page | 15 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | 英語 |
| Copyright Holders | CopyrightⒸ 2020 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 32099243 |
| Web of Science KeyUT | 000516606200002 |
| NAID | 120006795614 |
