BACKGROUND: Genu recurvatum, a posterior resting position of the knee, is a common lower @entity85 in @entity1 with @entity5884 and has been thought to be secondary to @entity10089 . To the best of our knowledge, the role of the @entity4957 has not been investigated, and no studies describe the @entity4957 in @entity1 with @entity5884 . Our goals were to characterize the @entity4957 in @entity1 and adults with @entity5884 , explore its possible role in the development of genu recurvatum, and compare the @entity4957 in @entity1 with @entity5884 to that in the general population. METHODS: We reviewed 252 lateral knee radiographs of 130 @entity1 with @entity5884 seen at our clinic from November 2007 through September 2013. @entity1 were excluded if they had previous lower extremity surgery or radiographs with extreme rotation. We analyzed @entity1 demographics and, on all radiographs, the @entity4957 . We then compared the mean @entity4957 to norms in the literature. Tibial slopes >90 degrees had an anterior @entity4957 and received a positive prefix. Statistical analysis included intraclass and interclass reliability, Pearson correlation coefficient, and the Student t tests (significance, P<0.05). RESULTS: The overall mean @entity4957 for the 252 knees was +1.32  7 degrees, which was significantly more anterior than the normal slopes reported in the literature for adults (7.2 to 10.7 degrees, P=0.0001) and @entity1 (10 to 11 degrees, P=0.0001). The Pearson correlation coefficient for mean @entity4957 and age showed negative correlations of -0.4011 and -0.4335 for left and right knees, respectively. This anterior @entity4957 produces proximal and posterior vector force components, which may shift the knee posteriorly in weightbearing. CONCLUSIONS: The mean @entity4957 is significantly more anterior in @entity1 with @entity5884 than in the general population; however, this difference diminishes as @entity1 ' age. An anterior @entity4957 may predispose to a more posterior resting knee position, also known as genu recurvatum. LEVEL OF EVIDENCE: Level IV-retrospective case series.

The Tibial Slope in XXXX With @entity5884 : Its Characterization and Possible Role in Genu Recurvatum Development.

@entity1 :: ('9606', 'Species') :: ['children', 'Patients', 'patients', 'patient'] @entity5884 :: ('MESH:D000130', 'Disease') :: ['achondroplasia'] @entity4957 :: ('MESH:D020429', 'Disease') :: ['tibial slope'] @entity10089 :: ('MESH:C536012', 'Disease') :: ['ligamentous laxity'] @entity85 :: ('MESH:D009140', 'Disease') :: ['extremity deformity']
@entity1 :: (9606,Species) :: ['Patients']
