scholarly journals Pre‐operative templating for total hip arthroplasty: How does radiographic technique and calibration marker placement affect image magnification?

2021 ◽  
Author(s):  
Mia Holliday ◽  
Adam Steward
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Image Magnification ◽  
Radiographic Technique

Biomechanical Evaluation of the Accuracy in Radiographic Assessment of Femoral Component Migration Measurement after Total Hip Arthroplasty

2020 ◽  
Vol 13 (1) ◽  
pp. 65-70
Author(s):  
Mikayla Forness ◽  
Zachary Podoll ◽  
Benjamin Noonan ◽  
Alexander Chong
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Femoral Stem ◽  
Stem Length ◽  
Head Diameter ◽  
Plain Radiographs ◽  
Total Hip ◽  
Image Magnification ◽  
Magnification Factors ◽  
Radiographic Measurements

Introduction: Implant subsidence is one criteria utilized to monitor for prosthesis loosening after total hip arthroplasty (THA) with initial implant subsidence assessment often done utilizing plain radiographs. The specific aim of this study was to identify the most reliable references when using plain radiographs to establish an image magnification with the goals being easy to use, inexpensive, reliable, and accurate. Methods: Two femoral stem implants (stem lengths: 127mm, 207mm) were utilized to simulate hemiarthroplasty of the hip with composite femurs. Different combinations of femoral stem distances from the radiographic film (ODD), source-detector differences (SDD), hip rotation, and hip flexion were elected. Standardized anterior-posterior pelvis for each parameter combination setup were taken. Radiographic measurements (head diameter, stem length, stem seating length) were undertaken five times by three examiners. Radiographic image magnification factors were generated from two references (head diameter and stem length). Radiograph measurement reproducibility and stem seating length errors using these magnification factors were evaluated. Results: High level of repeated measurements reliability was found for head diameter (99 ± 0%) and stem length (90 ± 7%) measurements, whereas seating length measurements were less reliable (76 ± 6%). Stem length error using the femoral head magnification factor yielded 11% accuracy. Stem seating length error using both magnification factors were not reliable (< 7% accuracy). All parameters, except SDD, showed significant effect on calibrated measurement error. Conclusions: Current methods of assessing implant subsidence after THA using plain radiographs are inaccurate or reliable. Clinicians should recognize these limitations and be cautious when diagnosing implant stability using plain radiographs alone.

Total Hip Arthroplasty: Good News, Bad News

2011 ◽  
Vol 10 (5) ◽  
pp. 58
Author(s):  
MARY ANN MOON
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Bad News ◽  
Good News ◽  
Total Hip

Total Hip Arthroplasty – Good News, Bad News

2011 ◽  
Vol 41 (8) ◽  
pp. 24
Author(s):  
MARY ANN MOON
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Bad News ◽  
Good News ◽  
Total Hip

MR Imaging with Metal Artifact Reduction to Differentiate between Patients with and without Infected Total Hip Arthroplasty

2018 ◽  
Author(s):  
Benedikt Schwaiger ◽  
Alexandra Gersing ◽  
Daniela Muenzel ◽  
Julia Dangelmaier ◽  
Peter Prodinger ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Mr Imaging ◽  
Hip Arthroplasty ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction ◽  
Total Hip

Plasma Prekallikrein Activity in Patients with Total Hip Arthroplasty

1987 ◽  
Vol 58 (04) ◽  
pp. 1040-1042
Author(s):  
J J M L Hoffmann ◽  
J H J P M Kortmann
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Hip Prosthesis ◽  
Contact System ◽  
Factor Xii ◽  
Total Hip ◽  
Activity Factor ◽  
Patient Groups ◽  
Kallikrein Activity

SummaryThe behaviour of the contact system was studied in 40 patients with total hip arthroplasty, by measuring plasma prekallikrein, spontaneous kallikrein activity and factor XII. In the literature it had been shown that patients with complications from this operation had decreased prekallikrein and increased kallikrein activity (M. Nakahara. Acta orthop scand 1982; 53: 591-6). In the present study, comprising patients with and without pain and proven loosening of the hip prosthesis, these findings could only partially be confirmed. Patients with a loosened prosthesis had significantly lower prekallikrein (mean 0.78 ± 0.28 U/ml; p <0.01) than patients without problems, but no detectable kallikrein activity in plasma. Patients with pain but no loosening had normal prekallikrein (1.04 ±0 0.26 U/ml) and also no demonstrable kallikrein activity. Factor XII was normal in all patient groups. It is concluded that decreased prekallikrein is limited to patients with a loosened hip prosthesis, with or without pain.

A Comparative Analysis of Patient Satisfaction following Total Knee Arthroplasty and Total Hip Arthroplasty Using the Forgotten Joint Score

2020 ◽  
Vol 04 (02) ◽  
pp. 084-089
Author(s):  
Vivek Singh ◽  
Stephen Zak ◽  
Ran Schwarzkopf ◽  
Roy Davidovitch
Keyword(s):  
Total Knee Arthroplasty ◽  
Patient Satisfaction ◽  
Total Hip Arthroplasty ◽  
Knee Arthroplasty ◽  
Hip Arthroplasty ◽  
Demographic Data ◽  
Demographic Differences ◽  
Total Hip ◽  
Forgotten Joint Score ◽  
Total Knee

AbstractMeasuring patient satisfaction and surgical outcomes following total joint arthroplasty remains controversial with most tools failing to account for both surgeon and patient satisfaction in regard to outcomes. The purpose of this study was to use “The Forgotten Joint Score” questionnaire to assess clinical outcomes comparing patients who underwent a total hip arthroplasty (THA) with those who underwent a total knee arthroplasty (TKA). We conducted a retrospective review of patients who underwent primary THA or TKA between September 2016 and September 2019 and responded to the Forgotten Joint Score-12 (FJS-12) questionnaire at least at one of three time periods (3, 12, and 21 months), postoperatively. An electronic patient rehabilitation application was used to administer the questionnaire. Collected variables included demographic data (age, gender, race, body mass index [BMI], and smoking status), length of stay (LOS), and FJS-12 scores. t-test and chi-square were used to determine significance. Linear regression was used to account for demographic differences. A p-value of less than 0.05 was considered statistically significant. Of the 2,359 patients included in this study, 1,469 underwent a THA and 890 underwent a TKA. Demographic differences were observed between the two groups with the TKA group being older, with higher BMI, higher American Society of Anesthesiologists scores, and longer LOS. Accounting for the differences in demographic data, THA patients consistently had higher scores at 3 months (53.72 vs. 24.96; p < 0.001), 12 months (66.00 vs. 43.57; p < 0.001), and 21 months (73.45 vs. 47.22; p < 0.001). FJS-12 scores for patients that underwent THA were significantly higher in comparison to TKA patients at 3, 12, and 21 months postoperatively. Increasing patient age led to a marginal increase in FJS-12 score in both cohorts. With higher FJS-12 scores, patients who underwent THA may experience a more positive evolution with their surgery postoperatively than those who had TKA.

Clinical Outcomes Associated with Centerline Canine Cementless Total Hip Arthroplasty in 19 Dogs

2020 ◽  
Author(s):  
G Zuendt ◽  
D Stobie ◽  
K Hayashi ◽  
M Fealey
Keyword(s):  
Total Hip Arthroplasty ◽  
Clinical Outcomes ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
Cementless Total Hip Arthroplasty

Patient Activity after Total Hip Arthroplasty: A Comparison of Three Different Bearing Surfaces

2013 ◽  
Vol 23 (4) ◽  
pp. 315-321 ◽  
Author(s):  
Johannes F. Plate ◽  
Kimona Issa ◽  
Craig Wright ◽  
Bartlomiej W. Szczech ◽  
Bhaveen H. Kapadia ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip

Early Results of Total Hip Arthroplasty in the Super-Obese Patients

2013 ◽  
Vol 23 (4) ◽  
pp. 309-313 ◽  
Author(s):  
Kimona Issa ◽  
Hirschel Wohl ◽  
Qais Naziri ◽  
James D. McDermott ◽  
Jeffery J. Cherian ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Obese Patients ◽  
Super Obese ◽  
Total Hip ◽  
Early Results
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