title: Increased external tibial torsion in Osgood-Schlatter disease.
abstract: We studied the relationship between Osgood-Schlatter disease and torsional abnormalities of the lower limb in 21 boys with this condition and 20 age- and sex-matched controls. 3 groups of knees (20 control knees, 21 symptomatic and 21 asymptomatic or less symptomatic knees) were subjected to clinical, radiographic and CT evaluation. We found no statistically significant differences between patients and controls, as regards femoral anteversion, patellar congruence angle, patellar tilt angle and anterior tibial tuberosity-trochlear groove distance, but the condylomalleolar angle and tibial torsion angle were greater in patients. We found no differences between symptomatic and asymptomatic or less symptomatic knees in any of the parameters. All the symptomatic knees were on the side preferentially involved in jumping and sprinting. This increase in external tibial torsion may play a role as a predisposing mechanical factor in the onset of Osgood-Schlatter disease in male athletes.
authors.affiliation: Department of Orthopedics, University of Ancona, Italy. agigante@iol.it
authors.forename: Antonio
authors.initials: A
authors.lastname: Gigante
authors.forename: Claudia
authors.initials: C
authors.lastname: Bevilacqua
authors.forename: Massimo G
authors.initials: MG
authors.lastname: Bonetti
authors.forename: Francesco
authors.initials: F
authors.lastname: Greco
mesh_terms: D000293:Adolescent; D000704:Analysis of Variance; D001696:Biomechanical Phenomena; D016022:Case-Control Studies; D002648:Child; D006801:Humans; D007593:Joint Instability / Q000000981:diagnostic imaging / Q000209:etiology; D007719:Knee Joint / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008297:Male; D010007:Osteochondritis / Q000150:complications* / Q000000981:diagnostic imaging; D011379:Prognosis; D016059:Range of Motion, Articular / Q000502:physiology*; D012016:Reference Values; D018570:Risk Assessment; D012720:Severity of Illness Index; D013977:Tibia / Q000000981:diagnostic imaging / Q000503:physiopathology*; D014057:Tomography, X-Ray Computed; D014102:Torsion Abnormality