@article{oai:nagasaki-u.repo.nii.ac.jp:00004959,
 author = {Hozumi, Akira and Kobayashi, Kyousuke and Tsuru, Nobuhisa and Miyamoto, Chikara and Maeda, Jyunichiro and Chiba, Ko and Goto, Hisataka and Osaki, Makoto},
 journal = {BioMed Research International},
 month = {},
 note = {Background. The S-ROM-A prosthesis has been designed for the Asian proximal femur with a small deformed shape and narrow canal. In this study, the clinical and radiological results using the S-ROM-A prosthesis for Japanese patients with severe deformity due to dysplasia and excessive posterior pelvic tilt were examined. Methods. 94 hips were followed up for a mean of 55 months, with a mean age at surgery of 61 years. The primary diagnoses were 94 coxarthritis cases, including 51 dysplasia and 37 primary OA, 1 avascular necrosis, 2 traumatic arthritis, and 3 Perthes disease. Thirty-one hips had been treated with osteotomy of the hip joints. Preoperative intramedullary canal shapes were stovepipe in 23 hips, normal in 51 hips, and champagne-flute in 5 hips. The maximum pelvic inclination angle was 56°. Results. The mean JOA score improved from 46 points preoperatively to 80 points at final follow-up. On radiological evaluation of the fixation of the implants according to the Engh classification, 92 (97%) hips were classified as "bone ingrown fixation." Conclusion. In primary THA, using the S-ROM-A prosthesis for Asian patients with proximal femoral deformity, even after osteotomy and with posterior pelvic tilt, provided good short- to midterm results., BioMed Research International, 2015, 690539; 2015},
 title = {Total Hip Arthroplasty Using the S-ROM-A Prosthesis for Anatomically Difficult Asian Patients},
 volume = {2015},
 year = {2015}
}