Notas / Notes - Active Congress.......
Notas / Notes - Active Congress.......
Notas / Notes - Active Congress.......
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
MIÉRCOLES / WEDNESDAY<br />
60<br />
if the stem anteversion is 10-20 degrees, the cup anteversion<br />
should be 20 degrees, whereas if the stem anteversion is 5<br />
degrees, the cup anteversion should be close to 30 degrees.<br />
We rarely exceed 30 degrees of cup anteversion because<br />
exceeding 30 degrees increases the risk of impingement in<br />
external rotation and abduction and extension in external<br />
rotation.<br />
REFERENCES<br />
1. Barrack, R. L.: Dislocation after total hip arthroplasty:<br />
implant design and orientation. J Am Acad Orthop Surg,<br />
11(2): 89-99, 2003.<br />
2. D’Lima, D. D.; Chen, P. C.; and Colwell, C. W., Jr.: Optimizing<br />
acetabular component position to minimize impingement<br />
and reduce contact stress. J Bone Joint Surg<br />
Am, 83-A Suppl 2 Pt 2: 87-91, 2001.<br />
3. D’Lima, D. D.; Urquhart, A. G.; Buehler, K. O.; Walker,<br />
R. H.; and Colwell, C. W., Jr.: The effect of the orientation<br />
of the acetabular and femoral components on the range<br />
of motion of the hip at different head-neck ratios. J Bone<br />
Joint Surg Am, 82(3): 315-21, 2000.<br />
4. Dorr LD: Hip arthroplasty. Minimally invasive techniques<br />
and computer navigation, 1st edition. Philadelphia, PA,<br />
Saunders Elsevier, 2006.<br />
5. Dorr, L. D.; Malik, A.; Wan, Z.; Long, W. T.; and Harris,<br />
M.: Precision and Bias of Imageless Computer Navigation<br />
and Surgeon Estimates for Acetabular Component Position.<br />
Clin Orthop Relat Res, 2007 Dec; 465:92-9.<br />
6. Jolles, B. M.; Genoud, P.; and Hoffmeyer, P.: Computerassisted<br />
cup placement techniques in total hip arthroplasty<br />
improve accuracy of placement. Clin Orthop Relat Res,<br />
(426): 174-9, 2004.<br />
7. Kalteis, T.; Handel, M.; Bathis, H.; Perlick, L.; Tingart, M.;<br />
and Grifka, J.: Imageless navigation for insertion of the<br />
acetabular component in total hip arthroplasty: is it as<br />
accurate as CT-based navigation? J Bone Joint Surg Br,<br />
88(2): 163-7, 2006.<br />
8. Lucas DH, S. R.: The Ranawat sign. A specific maneuver<br />
to assess component positioning in total hip arthroplasty.<br />
J Orthop Tech., 2: 59-61, 1994.<br />
9. Malik, A., and Dorr, L. D.: The science of minimally invasive<br />
total hip arthroplasty. Clin Orthop Relat Res, 463: 74-84,<br />
2007.<br />
10. Malik, A.; Maheshwari, A.; and Dorr, L. D.: Impingement<br />
with total hip replacement. J Bone Joint Surg Am, 89(8):<br />
1832-42, 2007.<br />
11. Maruyama, M.; Feinberg, J. R.; Capello, W. N.; and D’Antonio,<br />
J. A.: The Frank Stinchfield Award: Morphologic features<br />
of the acetabulum and femur: anteversion angle and implant<br />
positioning. Clin Orthop Relat Res, (393): 52-65, 2001.<br />
12. McCollum, D. E., and Gray, W. J.: Dislocation after total<br />
hip arthroplasty. Causes and prevention. Clin Orthop Relat<br />
Res, (261): 159-70, 1990.<br />
13. McKibbin, B.: Anatomical factors in the stability of the hip<br />
joint in the newborn. J Bone Joint Surg Br, 52(1): 148-<br />
59, 1970.<br />
14. Parratte, S., and Argenson, J. N.: Validation and usefulness<br />
of a computer-assisted cup-positioning system in<br />
total hip arthroplasty. A prospective, randomized, controlled<br />
study. J Bone Joint Surg Am, 89(3): 494-9, 2007.<br />
15. Pierchon, F.; Pasquier, G.; Cotten, A.; Fontaine, C.; Clarisse,<br />
J.; and Duquennoy, A.: Causes of dislocation of total<br />
hip arthroplasty. CT study of component alignment. J Bone<br />
Joint Surg Br, 76(1): 45-8, 1994.<br />
16. Widmer, K. H., and Zurfluh, B.: Compliant positioning of<br />
total hip components for optimal range of motion. J Orthop<br />
Res, 22(4): 815-21, 2004.<br />
17. Wines, A. P., and McNicol, D.: Computed tomography<br />
measurement of the accuracy of component version in total<br />
hip arthroplasty. J Arthroplasty, 21(5): 696-701, 2006.<br />
18. Yoshimine, F.: The safe-zones for combined cup and neck<br />
anteversions that fulfill the essential range of motion and<br />
their optimum combination in total hip replacements. J Biomech,<br />
39(7): 1315-23, 2006.