Microporous titanium and hydroxyapatite improve fixation of the tibial wall in unicompartmental knee replacement.

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Abstract

[Indexed for MEDLINE] 9. Medicine (Baltimore). 2024 Oct 11;103(41):e39946. doi: 10.1097/MD.0000000000039946. Comparative outcomes of cemented versus cementless stems in bipolar hemiarthroplasty for femoral neck fractures. Ono T(1)(2), Watanabe N(1), Hayakawa K(1), Kainuma S(1), Yamada H(1), Waseda Y(1), Kanda Y(1), Fukuoka M(1), Tokuda H(3)(4), Murakami H(2), Kuroyanagi G(2)(5). Author information: (1)Department of Orthopedic Surgery, Tosei General Hospital, Seto, Japan. (2)Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. (3)Department of Metabolic Research, Research Institute, National Center for Geriatrics and Gerontology, Obu, Japan. (4)Department of Clinical Laboratory, National Center for Geriatrics and Gerontology, Obu, Japan. (5)Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. We aimed to compare the clinical and surgical outcomes of cemented vs uncemented bipolar hemiarthroplasty in the treatment of femoral neck fractures in the elderly. Patients (n = 99) without preoperative cardiopulmonary problems undergoing bipolar hemiarthroplasty for femoral neck fracture between August 2015 and February 2019 were randomly divided into cemented (group C) and uncemented (group U) stem fixation groups. Mean operative time, mean intraoperative blood loss, and percentage of intraoperative use of vasopressors, pre- and postoperative activities of daily living (ADL), incidence of postoperative complications, and radiological evaluation of stem alignment were evaluated. A total of 99 patients were included (group C, n = 42; group U, n = 57). Group C had a significantly longer mean operative time (P