A new set of angles measured on standard axial CT images of the hip joint is defined. The angles provide information on the support of the femoral head from the anterior and the posterior part of the acetabulum. These angles have been measured in 82 adult hips, and correlated to a set of established parameters commonly measured at conventional roentgenography and on CT images of the hip joint. The defined angles may prove to be valuable in the total appreciation of hip joint function and stability.
AndaS.SvenningsenS.SlørdahlJ.BenumP.: Voluntary hip subluxation examined by computed tomography. A case report. Acta Orthop. Scand.57 (1986), 94.
2.
DunlapK.ShandsA. R.JrHollisterL. C.JrGaulJ. S.JrStreitH. A.: A new method for determination of torsion of the femur. J. Bone Jt Surg.35A (1953), 289.
3.
EdholmP.: Nomogram for measuring the anteversion angle and angulation of fracture from roentgenograms. Acta radiol. Diagnosis12 (1972), 856.
4.
GroteR.ElgetiH.SaureD.: Bestimmung des Antetorsionswinkels am Femur mit der axialen Computertomographie. Röntgen-Blätter33 (1980), 31.
5.
HernandezR. J.TachdjianM. O.PoznanskiA. K.DiasL. S.: CT determination of femoral torsion. Amer J. Roentgenol.137 (1981), 97.
6.
HilgenreinerH.: Zur Frühdiagnose und Frühbehandlung der angeborenen Hüftgelenkverrenkung. Med. Klin.37 (1925), 1385.
7.
Le DamanyP.: Die angeborene Hüftgelenksverrenkung. Z. Orthop. Chir.21 (1908), 129.
8.
MüllerM. E.: Die hüftnahen Femurosteotomien unter Berücksichtigung der Form, Funktion und Beanspruchung des Hüftgelenkes. 2. Aufl.Georg Thieme Verlag, Stuttgart1971.
9.
ReikeråsO.BjerkreimI.KolbenstvedtA.: Anteversion of the acetabulum in patients with idiopathic increased anteversion of the femoral neck. Acta Orthop. Scand.53 (1982), 847.
10.
RippsteinJ.: Zur Bestimmung der Antetorsion des Schenkelhalses mittels zweier Röntgenaufnahmen. Z. Orthop.86 (1955), 345.
11.
TerverS.DillinghamM., Parker B. and coll.: Étude de l'orientation réelle du cotyle grâce au tomodensitomètre axial ou scanner. J. Radiol.63 (1982), 167.
12.
VisserJ. D.JonkersA.: A method for calculating acetabular anteversion, femur anteversion and the instability index of the hip joint. Neth. J. Surg.32 (1980), 146.
13.
VisserJ. D.JonkersA.HillenB.: Hip joint measurements with computerized tomography. J. Pediatr. Orthop.24 (1982), 143.
14.
WeinerD.CookA.HoytW.OravecC.: Computed tomography in the measurement of femoral anteversion. Orthopedics1 (1978), 299.
15.
WibergG.: Studies on dysplastic acetabula and congenital subluxation of the hip joint with special reference to the complication of osteo-arthritis. Acta Chir. Scand.83 (1939) Suppl. No. 58, p. 1.
