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

Rotational stability of noncemented total hip femoral components


, : Rotational stability of noncemented total hip femoral components. American Journal of Orthopedics 25(4): 276-280

Achieving torsional fixation of the femoral component in total hip arthroplasty is an important factor in success of the implant, so design features that improve fixation are likely to improve clinical results. Four femoral stem designs that allow different levels of femoral neck resection and use different distal fixation techniques were mechanically tested in cadaveric femurs to determine resistance to torsional loads. Five specimens for each stem design were implanted according to the standard procedure, and each was axially and torsionally loaded in a servohydraulic testing machine. Rotational interface micromotion and interface slippage were measured at the bone-implant interface. Decreased micromotion and interface slippage were associated with a distal scratch fit and neck retaining design, and the combination of distal scratch fit and neck retention had the least micromotion and smallest standard deviation of the four designs.

US$29.90

PMID: 8728364


Other references

M.D.id, C.; Hodges, Zé.; Fayter, D.; Stirk, L.; Eastwood, A., 2006: Increasing participation of cancer patients in randomised controlled trials: a systematic review. There are many barriers to patient participation in randomised controlled trials of cancer treatments. To increase participation in trials, strategies need to be identified to overcome these barriers. Our aim was to assess the effectiveness of int...

Litvak, A.M.; Paik, P.K.; Woo, K.M.; Sima, C.S.; Hellmann, M.D.; Arcila, M.E.; Ladanyi, M.; Rudin, C.M.; Kris, M.G.; Riely, G.J., 2015: Clinical characteristics and course of 63 patients with BRAF mutant lung cancers. Mutant BRAF is a driver oncogene found in 2% of lung adenocarcinomas and represents a target for therapy. We examined the clinical characteristics and course of patients with lung adenocarcinomas harboring BRAF mutations. We identified patients wi...

ZhangYongGang; CaoDong; ShiSuJia; MaoXiaoBing, 2008: Analysis of phospholipids in transphosphatidylation by phospholipase D. A method for quantification of phospholipids based on high performance liquid chromatography/evaporative light scattering detector (HPLC/ELSD) was developed. The gradient solvent system was used and detection was performed with a light-scattering...

Griffiths, H.R.; Mistry, P.; Herbert, K.E.; Lunec, J., 1998: Molecular and cellular effects of ultraviolet light-induced genotoxicity. Exposure to the solar ultraviolet spectrum that penetrates the Earth's stratosphere (UVA and UVB) causes cellular DNA damage within skin cells. This damage is elicited directly through absorption of energy (UVB), and indirectly through interm...

Hodireva Vija; Korpechkov Denis; Savvaitov Alexander, 2004: Heavy minerals in sedimentary environments of Latvia. International Geological Congress, Abstracts = Congres Geologique International, Resumes 32, Part 1: 207

Plummer, P.; Morris, M.E.; Dunai, J., 2003: Assessment of unilateral neglect. Physical Therapy 83(8): 732-740

Ahn, H.; Park, Y.Kyoung., 2017: Soy isoflavone supplementation improves longitudinal bone growth and bone quality in growing female rats. The aim of this study was to investigate the effects of soy isoflavone on tibia length, bone mineral density (BMD), and structural parameters in growing female rats. Three-week-old female Sprague-Dawley rats were randomly assigned to four experime...

Gabbai, F.; Aceves, A.; Pulido, L.; Mendoza Aviña, V.; Fernández, M.; Hernández-Ortíz, J.; Bordes-Aznar, J.; Chávez-Peón, F.; Arriaga-Gracia, J.; Herrera-Acosta, J., 1984: Renovascular hypertension. Studies of 16 cases with long-term follow-up. Surgical correction of renovascular hypertension was studied in 16 patients. In all the patients severe high blood pressure and stenosis of at least one renal artery was demonstrated; in 14 patients plasma renin activity (PRA) in renal veins and p...

Kurpad, A.V.; Anand, P.; Dwarkanath, P.; Hsu, J.W.; Thomas, T.; Devi, S.; Thomas, A.; Mhaskar, R.; Jahoor, F., 2014: Whole body methionine kinetics, transmethylation, transulfuration and remethylation during pregnancy. There is evidence from a study of pregnant American women that methionine transmethylation (TM) and remethylation (RM) rates increases and transulfuration (TS) decreases as pregnancy progresses from trimester 1 to 3. To determine whether pregnant...

Delaplace, C.; Chollet, D., 1998: How non-expert swimmers structure 100 m freestyle. Objective. The purpose of this study was to determine the ways in which pre-graduate sport science students of different performance levels swam 100 m freestyle. Methods. The sample was composed of 402 male subjects, 19.3 +- 1.7 years of age, and...