AB0294 Preoperative Factors Associated with Outcomes of Total Hip Arthroplasty in Rheumatoid Arthritis

2014 ◽  
Vol 73 (Suppl 2) ◽  
pp. 901.2-901
Author(s):  
T. Imagama ◽  
K. Seki ◽  
A. Sakka ◽  
A. Tokushige ◽  
T. Taguchi
2021 ◽  
Vol 29 (2) ◽  
pp. 230949902110190
Author(s):  
Shintaro Watanabe ◽  
Hyonmin Choe ◽  
Naomi Kobayashi ◽  
Hiroyuki Ike ◽  
Daigo Kobayashi ◽  
...  

Purpose: Dislocation is a major complication after total hip arthroplasty (THA), and pelvic stiffness is reportedly a significant risk factor for dislocation. This study aimed to investigate spinopelvic alignment, and identify preoperative factors associated with postoperative pelvic mobility. Methods: We enrolled 78 THA patients with unilateral osteoarthritis. The sagittal spinopelvic alignment in the standing and sitting position was measured using an EOS imaging system before and 3 months after THA. We evaluated postoperative pelvic mobility, and defined cases with less than 10° of sacral slope change as pelvic stiff type. The preoperative characteristics of those with postoperative stiff type, and preoperative factors associated with risk of postoperative stiff type were evaluated. Results: Sagittal spinopelvic alignment except for lumbar alignment were significantly changed after THA.A total of 13 patients (17%) were identified as postoperative pelvic stiff type. Preoperative lower pelvic and lumbar mobility were determined as significant factors for prediction of postoperative pelvic stiff type. Among these patients, nine patients (69%) did not have pelvic stiffness before THA. Preoperative factor associated with the risk of postoperative pelvic stiff type in those without preoperative stiffness was lower lumbar lordosis in standing position by multivariate regression analysis. Conclusion: Spinopelvic alignments except lumber alignment was significantly changed after THA. The lower pelvic mobility and lumbar alignment were identified as the preoperative predictive factors for postoperative pelvic mobility. Evaluation of preoperative lumbar alignment may be especially useful for the prediction in patients with hip contractures, for these patients may possibly experience the extensive perioperative change in pelvic mobility.


2021 ◽  
Author(s):  
Akira Morita ◽  
Kobayashi Naomi ◽  
Hyonmin Choe ◽  
Taro Tezuka ◽  
Shota Higashihira ◽  
...  

Abstract BackgroundStress shielding after total hip arthroplasty (THA) leads to the loss of bone mineral density (BMD) around the femoral implants, particularly in the proximal area. BMD loss around the implant is likely to occur within 1 year after THA, but its severity depends on patient characteristics. This study evaluated preoperative factors associated with the severity of zone 7 BMD loss after THA.MethodsThis retrospective cohort study included 48 patients who underwent primary THA at our hospital from October 2011 to December 2015. All patients underwent implantation of a Zweymüller-type femoral component without any postoperative osteoporosis medications. The objective variable was change in zone 7 BMD after 1 year. Factors evaluated included age, body mass index (BMI), Japanese Orthopaedic Association (JOA) score, Harris Hip Score (HHS), Canal Flare Index (CFI), and lumbar BMD on the frontal and lateral sides. Factors associated with loss of zone 7 BMD were identified by univariate and multivariate regression analyses.ResultsUnivariate regression analysis showed that CFI (P=0.003) and preoperative lumbar BMD on the frontal (P=0.003) and lateral (P<0.001) sides were significantly correlated with loss of zone 7 BMD. Multivariate regression analysis showed that CFI (P=0.014) and lumbar BMD on the lateral side (P<0.001) were independently correlated with loss of zone 7 BMD.ConclusionLower preoperative lumbar BMD on the lateral side and lower CFI were significantly associated with zone 7 BMD loss after THA. Patients with these characteristics should be carefully monitored for severe BMD loss after THA.


Orthopedics ◽  
2018 ◽  
Vol 41 (6) ◽  
pp. e772-e776 ◽  
Author(s):  
Takashi Imagama ◽  
Atsunori Tokushige ◽  
Kazushige Seki ◽  
Toshihiro Seki ◽  
Hiroyoshi Ogasa ◽  
...  

2018 ◽  
Vol 7 (10) ◽  
pp. 358 ◽  
Author(s):  
Toshiyuki Kawai ◽  
Masanao Kataoka ◽  
Koji Goto ◽  
Yutaka Kuroda ◽  
Kazutaka So ◽  
...  

Patient-reported outcome measures (PROMs) are used to assess satisfaction after total hip arthroplasty (THA); however, the factors that determine these PROMs remain unclear. This study aimed to identify the patient- and surgery-related factors that affect patient satisfaction after THA as indicated by the Oxford Hip Score (OHS). One-hundred-and-twenty patients who underwent primary THA were included. Various patient-related factors, including clinical scores, and surgery-related factors were examined for potential correlations with the OHS at 3, 6, and 12 months post-THA. Univariate regression analysis showed that higher preoperative University of California Los Angeles (UCLA) activity score (p = 0.027) and better preoperative OHS (p = 0.0037) were correlated with better OHS at 3 months post-THA. At 6 months post-THA, the factors associated with better OHS were higher preoperative UCLA activity score (p = 0.039), better preoperative OHS (p = 0.0006), and use of a cemented stem (p = 0.0071). At 12 months post-THA, the factors associated with better OHS were higher preoperative UCLA activity score (p = 0.0075) and better preoperative OHS (p < 0.0001). Multivariate regression analysis showed that the factors significantly correlated with better OHS were female sex (p = 0.011 at 3 months post-THA), osteoarthritis (p = 0.043 at 6 months), higher preoperative OHS (p < 0.001 at 3 and 12 months, p = 0.018 at 6 months), higher preoperative Harris Hip Score (p = 0.001 at 3 months), higher preoperative UCLA activity score (p = 0.0075 at 3 months), and the use of a cemented femoral component (p = 0.012 at 6 months). Patient- and surgery-related factors affecting post-THA PROMs were identified, although the effect of these factors decreased over time.


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