scholarly journals Preoperative Planning of Total Hip Arthroplasty

2018 ◽  
Author(s):  
Aamir H. Shaikh
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Preoperative Planning ◽  
Total Hip

scholarly journals Value of 3D Preoperative Planning for Primary Total Hip Arthroplasty Based on Biplanar Weightbearing Radiographs

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Y. Knafo ◽  
F. Houfani ◽  
B. Zaharia ◽  
F. Egrise ◽  
I. Clerc-Urmès ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Preoperative Planning ◽  
Femoral Stem ◽  
Leg Length ◽  
Femoral Offset ◽  
Postoperative Result ◽  
Total Hip ◽  
Planning Software ◽  
Navigated Surgery

Two-dimensional (2D) planning on standard radiographs for total hip arthroplasty may not be sufficiently accurate to predict implant sizing or restore leg length and femoral offset, whereas 3D planning avoids magnification and projection errors. Furthermore, weightbearing measures are not available with computed tomography (CT) and leg length and offset are rarely checked postoperatively using any imaging modality. Navigation can usually achieve a surgical plan precisely, but the choice of that plan remains key, which is best guided by preoperative planning. The study objectives were therefore to (1) evaluate the accuracy of stem/cup size prediction using dedicated 3D planning software based on biplanar radiographic imaging under weightbearing and (2) compare the preplanned leg length and femoral offset with the postoperative result. This single-centre, single-surgeon prospective study consisted of a cohort of 33 patients operated on over 24 months. The routine clinical workflow consisted of preoperative biplanar weightbearing imaging, 3D surgical planning, navigated surgery to execute the plan, and postoperative biplanar imaging to verify the radiological outcomes in 3D weightbearing. 3D planning was performed with the dedicated hipEOS® planning software to determine stem and cup size and position, plus 3D anatomical and functional parameters, in particular variations in leg length and femoral offset. Component size planning accuracy was 94% (31/33) within one size for the femoral stem and 100% (33/33) within one size for the acetabular cup. There were no significant differences between planned versus implanted femoral stem size or planned versus measured changes in leg length or offset. Cup size did differ significantly, tending towards implanting one size larger when there was a difference. Biplanar radiographs plus hipEOS planning software showed good reliability for predicting implant size, leg length, and femoral offset and postoperatively provided a check on the navigated surgery. Compared to previous studies, the predictive results were better than 2D planning on conventional radiography and equal to 3D planning on CT images, with lower radiation dose, and in the weightbearing position.

The effect of range of motion simulated with a patient-specific three-dimensional simulation analysis on dislocation after total hip arthroplasty

2021 ◽  
pp. 112070002110448
Author(s):  
Ryo Mitsutake ◽  
Hiromasa Tanino ◽  
Hiroshi Ito
Keyword(s):  
Total Hip Arthroplasty ◽  
Range Of Motion ◽  
Hip Arthroplasty ◽  
Preoperative Planning ◽  
Simulation Analysis ◽  
Fine Tuning ◽  
Posterior Dislocation ◽  
Flexion Angle ◽  
Total Hip ◽  
Dimensional Simulation

Background: Dislocation continues to be a common complication following total hip arthroplasty (THA). Although previous studies of computed simulation analysis investigated the range of motion (ROM), it is unclear whether the ROM before impingement simulated using computed tomography-based 3-dimensional simulation analysis (simulated ROM) is related to dislocation after THA. It is also unclear what angles are required in computed simulation analyses for stable hips after THA. In this study, we compared the simulated ROM in patients with and without dislocation. Methods: 16 patients with posterior dislocation were compared with 48 matched patients without dislocation. Risk factors including preoperative bone morphology of the hip, implant position, change of femoral offset, change of leg length, anterior aspect of the greater trochanter (GTa) length, and anterior inferior iliac spine length were also compared. Results: The mean flexion angle, internal-rotation at 90° flexion (IR) angle, cup anteversion based on the anterior pelvic plane (APP), tilt-adjusted cup anteversion and GTa length were significantly different between patients with dislocation and patients without dislocation ( p = 0.033, 0.002, 0.010, 0.047, 0.046). A receiver-operating characteristic curve analysis suggested cutoff points for flexion angle, IR angle, cup anteversion based on the APP, tilt-adjusted cup anteversion and GTa length, of 114.5°, 45.5°, 19.5°, 12.0° and 15.3 mm. Conclusions: This study suggests that preoperative planning to achieve a larger simulated ROM, flexion angle and IR angle, may reduce the risk of posterior dislocation. This study also suggests that fine-tuning of cup anteversion and/or trimming of the overhanging GTa during preoperative planning may reduce the risk of posterior dislocation.

Automated Preoperative Planning of Femoral Component for Total Hip Arthroplasty (THA) from 3D CT Images

2008 ◽  
pp. 40-49 ◽  
Author(s):  
Itaru Otomaru ◽  
Masahiko Nakamoto ◽  
Masaki Takao ◽  
Nobuhiko Sugano ◽  
Yoshiyuki Kagiyama ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoral Component ◽  
Hip Arthroplasty ◽  
Preoperative Planning ◽  
Ct Images ◽  
3D Ct ◽  
Total Hip

scholarly journals Computed-Tomography-Based Computer Preoperative Planning for Total Hip Arthroplasty

1998 ◽  
Vol 3 (6) ◽  
pp. 320-324 ◽  
Author(s):  
Nobuhiko Sugano ◽  
Kenji Ohzono ◽  
Takashi Nishii ◽  
Keiji Haraguchi ◽  
Takashi Sakai ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Preoperative Planning ◽  
Total Hip

Preoperative Planning for Primary Total Hip Arthroplasty

2005 ◽  
Vol 13 (7) ◽  
pp. 455-462 ◽  
Author(s):  
Alejandro González Della Valle ◽  
Douglas E. Padgett ◽  
Eduardo A. Salvati
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Preoperative Planning ◽  
Total Hip ◽  
Primary Total Hip Arthroplasty

Implant Magnification Algorithm for Biomedical Images in Digital Total Hip Arthroplasty Preoperative Planning

2013 ◽  
Vol 19 (9) ◽  
pp. 2563-2566
Author(s):  
Azrulhizam Shapi'i ◽  
Riza Sulaiman ◽  
Anton Satria Prabuwono ◽  
Mohammad Khatim Hasan
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Preoperative Planning ◽  
Biomedical Images ◽  
Total Hip
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