Cementless bipolar hemiarthroplasty using a micro-arc oxidation coated stem in patients with displaced femoral neck fractures.
Femoral stem fixation for displaced femoral neck fractures in osteoporotic patients is an ongoing debate. We evaluated the outcome of 136 cementless bipolar hemiarthroplasty using a Micro-arc oxidation (MAO) coated stem. All patients survived the procedure and were discharged from the hospital. Thirty- and 90-day mortality rates were 0.7% and 2.2%, respectively. Ninety-eight hips were followed for a minimum of 2years (mean, 44months) postoperatively. Three stems were revised because of a periprosthetic fracture. Although cortical stress shielding around the stem was observed in 3 hips, there was no loosening or osteolysis. Cementless bipolar hemiarthroplasty using a MAO-coated stem is a useful and safe option to treat displaced femoral neck fractures.
Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-ro, 173 Beon-gil, Bundang-gu, Seongnam 463-707, South Korea.
Young-Kyun
YK
Lee
Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-ro, 173 Beon-gil, Bundang-gu, Seongnam 463-707, South Korea.
Ho-Yun
HY
Joung
Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-ro, 173 Beon-gil, Bundang-gu, Seongnam 463-707, South Korea.
Sang-Hwan
SH
Kim
Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, 224-1 Heukseok-dong, Dongjak-gu, Seoul 156-755, South Korea.
Yong-Chan
YC
Ha
Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 82 Gumi-ro, 173 Beon-gil, Bundang-gu, Seongnam 463-707, South Korea.
Kyung-Hoi
KH
Koo
D000368:Aged; D000369:Aged, 80 and over; D002484:Cementation; D020099:Coated Materials, Biocompatible; D005260:Female; D005265:Femoral Neck Fractures / Q000601:surgery*; D062785:Hemiarthroplasty / Q000009:adverse effects; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D011474:Prosthesis Design
D020099:Coated Materials, Biocompatible
cementless stem; femoral neck fracture; hemiarthroplasty; micro-arc oxidation; surface treatment