Radiographic Assessment of Coxarthrosis following Slipped Capital Femoral Epiphysis

Abstract

In all, 108 patients (1 51 hips) previously treated for slipped capital femoral epiphysis (SCFE), were evaluated radiographically for assessment of coxarthrosis at an average age of 47 years. Five projections were obtained of each hip (supine a.p., supine modified frog lateral, standing a.p., standing anterolateral oblique, and standing posterolateral oblique) and the superior, anterior, and posterior joint space heights were measured (abnormal: superior 5 3 . 0 mm and/or anterior and/or posterior <2.5 mm). Sixty-three hips (42%) had joint space narrowing in at least one projection. The standing a.p. and 2 lateral oblique views identified 54 hips as abnormal, and the supine a.p. and modified frog lateral views uncovered an additional 9. The supine a.p. view was the least helpful; 12 abnormal hips on the standing a.p. view were normal on the supine a.p. view. Isolated narrowing in the anterior and/or posterior joint space was found in 9 hips (6%). These changes could only be assessed by the 2 lateral oblique views. Our results illustrate that a combination of standing radiographs, visualising the circumference of the articular space of the hip joint, and modified frog lateral projections is necessary to fully identify coxarthrosis in hips previously treated for SCFE.

Hip dysplasia and osteoarthrosis

“…■ Hip dysplasia (HD) has been assumed to be a significant etiological factor in the development of premature hip osteoarthrosis (OA) in adults (Wiberg 1939, Severin 1941, Pauwels 1951, Stulberg and Harris 1974, Stulberg et al 1975, Cooperman et al 1983, Salter et al 1984, Ganz 1988, Murphy et al 1990, Croft et al 1991, Hansson et al 1993. To evaluate the magnitude of this predisposition, information on the prevalence of HD in the general population is required.…”

Treatment of slipped capital femoral epiphysis - a comparative study during twelve years period

“…It has been classified according to symptom duration, weight ability, and radiographic degree of slip. SCFE can be bilateral in approximately in 20-25% of cases [12,13].…”

“…AVN is related to insufficient blood supply to the femoral neck and head after the proximal femoral epiphysis slips [4]. Epiphyseal slip severity correlates directly to late complications' occurrence [4,7,13].…”