Right hip adduction deficit and adolescent idiopathic scoliosis.
OBJECTIVE
To determine whether right hip adduction deficit is associated with adolescent idiopathic scoliosis.


METHODS
102 adolescents (mean age, 14 years) with idiopathic scoliosis were prospectively studied. Their spinal curve pattern (according to Lenke's classification), curve severity (by Cobb's angle), and hip adduction ranges of both sides were recorded. Additional factors that may affect hip adduction range including the preferred leg during standing, the presence of hip flexor tightness, and the side of the dominant leg were also assessed.


RESULTS
The mean Cobb's angle was 27 degrees. The difference in hip adduction range between the right and left hips was 5 degrees (p<0.05). Of 102 patients, 64 had an adduction range deficit of the right hip, 4 of the left hip, and 34 had no difference. Patients with >10 degrees of right hip adduction deficit were associated with a higher proportion of left leg dominance than those with less than or equal to 10 degrees of right hip adduction deficit (18% vs 4%).


CONCLUSIONS
Left leg dominance may play a role in right hip adduction deficit and scoliosis.
Cheung
K M C
KM
Department of Orthopaedics and Traumatology, Queen Mary Hospital, The University of Hong Kong, Hong Kong. cheungmc@hku.hk
Cheng
A C S
AC
Cheung
W Y
WY
Chooi
Y S
YS
Wong
Y W
YW
Luk
K D K
KD
D000293:Adolescent; D005684:Gait; D006621:Hip Joint / Q000473:pathology / Q000503:physiopathology*; D006801:Humans; D007738:Kyphosis / Q000503:physiopathology*