title: Cementless total hip arthroplasty in patients aged ≥80 years.
abstract: OBJECTIVE
  We evaluate the clinical and radiological results of cementless total hip arthroplasties (THAs) in patients aged ≥80 years.
  
  
  METHODS
  We compared the clinical and radiological results of 30 cementless THAs done in patients aged ≥80 years (older group) and aged 60-69 years (control group).
  
  
  RESULTS
  The Harris Hip score significantly decreased in the older group 1 year after the operation and at the final follow-up observation (p = 0.001), but no joints required revision surgery due to poor initial fixation or early loosening.
  
  
  CONCLUSIONS
  Cementless THA in the elderly is safe and durable at the time of the follow-up.
authors.affiliation: Department of Orthopaedic Surgery, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421, Japan.
authors.forename: Takahito
authors.initials: T
authors.lastname: Yuasa
authors.affiliation: Department of Orthopaedic Surgery, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421, Japan; Juntendo Urayasu Hospital, Urayasu City, Chiba 279-0021, Japan.
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Maezawa
authors.affiliation: Department of Orthopaedic Surgery, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421, Japan; Juntendo University Nerima Hospital, Nerima-ku, Tokyo 177-8521, Japan.
authors.forename: Masahiko
authors.initials: M
authors.lastname: Nozawa
authors.affiliation: Department of Orthopaedic Surgery, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421, Japan.
authors.forename: Kazuo
authors.initials: K
authors.lastname: Kaneko
keywords: Cementless; Octogenarians; Surgical outcome; Total hip arthroplasty