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
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
FullText URL OTSR105_1_113.pdf Fig.pdf
Author Okazaki, Yuki| Furumatsu, Takayuki| Kodama, Yuya| Hino, Tomohito| Kamatsuki, Yusuke| Okazaki, Yoshiki| Masuda, Shin| Miyazawa, Shinichi| Endo, Hirosuke| Tetsunaga, Tomonori| Yamada, Kazuki| Ozaki, Toshifumi|
Keywords Magnetic resonance imaging Medial meniscus Posterior root tear Tibial rotation Transtibial pullout repair
Published Date 2019-02-28
Publication Title Orthopaedics & Traumatology: Surgery & Research
Volume volume105
Issue issue1
Publisher Elsevier
Start Page 113
End Page 117
ISSN 18770568
Content Type Journal Article
language 日本語
OAI-PMH Set 岡山大学
File Version author
PubMed ID 30482466
DOI 10.1016/j.otsr.2018.10.005
Web of Science KeyUT 000456541300019
Related Url isVersionOf https://doi.org/10.1016/j.otsr.2018.10.005