geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

A comparison of accuracy between step and non-step reamers of femoral intramedullary alignment system in total knee arthroplasty evaluated by computer-assisted navigation


, : A comparison of accuracy between step and non-step reamers of femoral intramedullary alignment system in total knee arthroplasty evaluated by computer-assisted navigation. Journal of the Medical Association of Thailand 95 Suppl 10: S72-S76

Limb alignment after total knee replacement has been demonstrated to be one of the most influential in determining long-term survival of the implants. Malalignment can contribute to early prosthesis failure through point loading and premature polyethelene wear. Alignment guides have been developed to improve the accuracy of femoral and tibial cuts during surgery. Recently, there are at least two groups of femoral intramedullary reamer. The first group uses step reamer (8 mm drill with 10 mm step) and another one uses non-step reamer (8 mm drill). The purpose of this cadaveric study was to analyse the accuracy of both design by compared with computer navigation system. Eight cadaveric lower extremities were used for the present study in four cadaveric bodies. The step reamer was applied on the left side and the non-step reamer was applied on the right side of the same cadaver. The distal femoral cuts, using femoral valgus angle 6 degrees, were performed. The resection angles between the cutting surface and the mechanical axis were measured and collected by means of computer navigation system. The results show that the step reamer resulted in 0.125 degrees +/- 0.25 degrees of varus, whereas the non-step reamer resulted in 0.5 degrees +/- 1.08 degrees of varus compared with the calculated mechanical axis by computer-assisted navigation. These data suggest that step reamer has the accuracy more than non-step reamer when evaluated by computer-assisted navigation.

US$29.90

PMID: 23451442


Other references

Dunlop, A.A.; Tallis, G.M.; Brown, G.H.; Gream, B.D., 1972: The relation of semen and vaginal mucus traits to fertility in the Australian Merino. Data relating semen traits and vaginal mucus scores in 515 ram-years and 4190 first inseminations to subsequent lambing performance of ewes were analysed by a range of statistical methods. The results showed an important curvilinear effect of mucu...

Wu, Q.X., 1992: Amplification and desensitization in platelet activation. Sheng Li Ke Xue Jin Zhan 23(3): 199-203

Biagio, L.; Swanepoel, D.Wet.; Adeyemo, A.; Hall, J.W.; Vinck, B., 2014: Asynchronous video-otoscopy with a telehealth facilitator. The study investigated whether video-otoscopic images taken by a telehealth clinic facilitator are sufficient for accurate asynchronous diagnosis by an otolaryngologist within a heterogeneous population. A within-subject comparative design was use...

Ohta, H.; Fukunaga, Y., 1999: A case of massive bloody stool caused by Meckel diverticulum in which 99mTc-HSA-DTPA SPECT was useful. A 15-year-old boy was admitted to our hospital because of massive bloody stool. At the age of 11 years, he had two episodes of massive bloody stool, and 99mTcO4- Meckel scintigraphy failed to contribute to the diagnosis. On this admission, 99mTc-H...

Dantuma, N.P.; Van Marrewijk, W.J.; Wynne, H.J.; Van der Horst, D.J., 1996: Interaction of an insect lipoprotein with its binding site at the fat body. A single type of high density lipoprotein (HDLp) binding sites is present at intact fat body tissue and in fat body membranes of larval and adult locusts. HDLp is bound with high affinity (Kd approximately 10(-7) M). This interaction does not requ...

Myers, J.K.; Smith, J.S.; Pace, C.Nick, 1996: The a-helix of ribonuclease T1 as an independent stability unit: direct comparison of peptide and protein stability. Journal of Molecular Biology 263: 0-5

Himoto, T.; Yoneyama, H.; Kurokohchi, K.; Inukai, M.; Masugata, H.; Goda, F.; Haba, R.; Watanabe, S.; Senda, S.; Masaki, T., 2012: Clinical significance of autoantibodies to p53 protein in patients with autoimmune liver diseases. Autoantibodies to p53 (anti-p53) are rarely present in the sera of patients with autoimmune diseases or the sera of patients with malignancies. To examine the prevalence of anti-p53 in patients with autoimmune liver disease including autoimmune he...

Rosenberg, M.L.; Gizzi, M., 2000: Neuro-otologic history. Throughout medicine, the clinical history is the most important diagnostic tool. This is particularly true in vestibular disease, where pathologic confirmation of the disease process is rare. Many vestibular conditions are more appropriately calle...

Morris, A.A.; Kalogeropoulos, A.P.; Zhao, L.; Owen, M.; Raja Laskar, S.; David Vega, J.; Smith, A.; Butler, J., 2016: Race and ethnic differences in the epidemiology and risk factors for graft failure after heart transplantation. Contemporary epidemiology of chronic graft failure (GF) after heart transplantation (HT) is not well described. Moreover, differences in the epidemiology of GF based on race/ethnicity remain poorly understood, despite clear evidence of inferior su...

Semenov, D.V.; Rogovin, K.A.; Shenbrot, G.I., 1997: Population densities in desert lizards of the Bukhara district, Uzbekistan. The population ecology of desert lizards was studied in 6 habitats in Uzbekistan during spring seasons of 1989-1990. All active lizards of 10 species were marked and released on 22 study areas 100 X 100 m; 839 specimens were marked, 276 recaptures...