Human ankle joint specimens were dissected and the dimensions required for lubrication analysis were measured. In planes parallel to the principal direction of motion, the radii of curvature of the tibial surfaces were slightly larger than those of the corresponding regions of the talar surfaces. A detailed error analysis was performed to ensure that this result was accurate. Also, length and width of the articulating regions and cartilage thicknesses were recorded. Based on the measurements of the present study an equivalent bearing geometry for the human ankle was proposed which had a reduced radius of 0.35 m for the curved surfaces.
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References
1.
BarnettC. H.NapierJ. R. (1952) The axis of rotation at the ankle joint in man. Its influence upon the form of the talus and the mobility of the fibula. Anatomy, 86, 1–9.
2.
BulloughP. G.GoodfellowJ. W.GreenwaldA. S.O'ConnorJ. J. (1968) Incongruent surfaces in the human hip joint. Nature, 217, 1290.
3.
D'AmbrosiaR. D.ShojiH.Van MeterJ. (1976) Rotational axis of the ankle joint: Comparison of normal and pathological states. Surgical Forum, 27, 507–508.
4.
DowsonD. (1967) Modes of lubrication in human joints. Proc. Instn mech. Engrs., 181, 45–54.
5.
DowsonD. (1980) Lubrication of joints. A. Natural joints. An introduction to the biomechanics of joints and joint replacements, edited by DowsonD.WrightV., Mechanical Engineering Publications, London, pp. 120–133.
6.
EkholmR.IngelmarkB. E. (1952) Functional thickness variations of human articular cartilage. Acta Soc. Med. U psal., 57, 39–59.
7.
GreenwaldA. S.O'ConnorJ. J. (1971) The transmission of load through the human hip joint. J. Biomech., 4, 507–528.
8.
GreenwaldA. S.MatejczykM. B.KepplerK.BlackJ. D.MorganJ. M.PorrittD.BeckR. D.WildeA. H. (1976) Preliminary observations on the weight-bearing surfaces of the human ankle joint. Surg. Forum., 27, 505–506.
9.
HigginsonG. R. (1978) Elastohydrodynamic lubrication in human joints. Engng. Med., 7, 35–41.
10.
KempsonG. E.FreemanM. A. R.TukeM. A. (1975) Engineering considerations in the design of an ankle joint. Biomed. Engng.166–175.
11.
KlineS. J.McClintockF. A. (1953) Describing uncertainties in single sample experiments. Mech. Engng., 3–8.
12.
LambertK. L. (1971) The weight-bearing function of the fibula. J. Bone Jt. Surg, 53A, 507–513.
13.
MedleyJ. B. (1981) The lubrication of normal human ankle joints. PhD thesis, University of Leeds.
14.
PappasM.BeuchelF. F.De PalmaA. F. (1976) Cylindrical total ankle joint replacement. Clin. Orthop., 118, 82–92.
15.
ParlascaR.ShojiH.D'AmbrosiaR. D. (1979) Effects of ligamentous injury on ankle and subtalar joints: A kinematic study. Clin. Orthop., 140, 266–272.
16.
RastegarJ.MillerN.BarmadaR. (1980) An apparatus for measuring the load displacement and load-dependent kinematic characteristics of articulating joints – application to the human ankle joint. Trans. ASME J. Biomech. Engng., 102, 208–213.
17.
SammarcoG. J.BursteinA. H.FrankelV. H. (1973). Biomechanics of the ankle: A kinematic study. Orthop. Clin. N. America, 4, 75–97.
18.
ScherrerP. K.HillberryB. M. (1979) Piecewise mathematical represetntation of articular surfaces. J. Biomech., 12, 301–311.
19.
StaufferR. N. (1976) Total ankle joint replacement as an alternative to arthrodesis. Geriatrics, 79–85.
