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Bone & Joint Research
Vol. 11, Issue 12 | Pages 873 - 880
1 Dec 2022
Watanabe N Miyatake K Takada R Ogawa T Amano Y Jinno T Koga H Yoshii T Okawa A

Aims

Osteoporosis is common in total hip arthroplasty (THA) patients. It plays a substantial factor in the surgery’s outcome, and previous studies have revealed that pharmacological treatment for osteoporosis influences implant survival rate. The purpose of this study was to examine the prevalence of and treatment rates for osteoporosis prior to THA, and to explore differences in osteoporosis-related biomarkers between patients treated and untreated for osteoporosis.

Methods

This single-centre retrospective study included 398 hip joints of patients who underwent THA. Using medical records, we examined preoperative bone mineral density measures of the hip and lumbar spine using dual energy X-ray absorptiometry (DXA) scans and the medications used to treat osteoporosis at the time of admission. We also assessed the following osteoporosis-related biomarkers: tartrate-resistant acid phosphatase 5b (TRACP-5b); total procollagen type 1 amino-terminal propeptide (total P1NP); intact parathyroid hormone; and homocysteine.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_16 | Pages 9 - 9
1 Apr 2013
Oh Y Wakabayashi Y Kurosa Y Ishizuki M Okawa A
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Introduction

Since the concept of severely suppressed bone turnover (SSBT) after long-term bisphosphonate (BPs) use, SSBT have been believed as the major cause of low-energy femoral fractures, which are called atypical femoral fractures. Here we present several cases of stress fractures with bowing femoral shaft deformity, which can be another cause of low-energy femoral fractures in the elderly.

Materials and Methods

From 1998 to 2012, we treated thirteen cases of low-energy fractures of femoral shaft. All cases were females with an average age of 77.0 (67–88) years. Retrospectively, we assessed fracture type, X-ray of contralateral side, bowing deformity of femur, and duration of BPs use.