L

Labral cleft, 12, 12/, 156, 159/ Labral groove, 121, 121/ Labrum aging-related changes in, 221, 224 anatomy of, 10, 10/, 11/, 59, 106 arthroscopic, 118, 118/, 120-121, 120/

normal variants of, 155-156

arthroscopy-related damage to, 121

portal placement-related, 232 average width of, 121 cysts of, 176, 177, 178 debridement of, 11, 12, 176 as developmental hip dysplasia treatment, 220, 222/ detachment of, 11-12, 12/, 13/, 14/ hypertrophic, 155-156 imaging of, 53-54, 58, 59-60, 60/, 61/ inverted acetabular dysplasia-associated,

11, 49, 49/ developmental dysplasia of the hip-associated, 220, 221, 222/ as osteoarthritis cause, 18-19, 18/, 19/, 21/, 160, 163/ in Legg-Calve-Perthes disease, 121 in nontraction hip arthroscopy,

170, 178 normal development of, 117 tears of, 8-14

acetabular, 214, 216/ adhesive capsulitis-associated, 29-30

in adolescents and children, 205t,

212-214, 213/, 214/, 215-217/ arthroscopic debridement of,

158-160, 162/, 163/ in athletes, 12, 13/, 14, 195, 196,

197/, 198-199, 199/ bucket-handle-type, 214, 215/ classification of, 11, 122-124 debridement of, 29, 30/, 215/ developmental hip dysplasia-

associated, 212-213, 213/ in elderly patients, 225/, 226-227 imaging of, 59-60, 60/, 198-199, 199/

location of, 123-124 morphology of, 122/, 123, 123/ pain associated with, 237, 239 pathomechanics of, 9-12 unstable subluxing, 123, 124/ vacuum force of, 170 Lasegue's sign, 78, 79 Lateral approach, in hip arthroscopy, 129-144 anesthesia in, 129 arthroscopic tower in, 136-137, 137/

arthroscopic visual sweep in, 141-144, 141/, 142/, 143/ instruments in, 136, 136/, 137/ operating room layout in, 134/,

135-137, 136/, 137/ operative procedure in, 137-141,

138-140/ patient positioning in, 129-131, 130/, 135/

pump system in, 136 traction in, 129, 131, 132/, 135 Lateral circumflex femoral artery, anatomic relationship to anterior portal, 111, 112/, 113/ Lateral femoral cutaneous artery, anatomic relationship to anterior portal, 110, 112/ Lateral femoral cutaneous nerve entrapment of, 78t hip arthroscopy-related injury to, 230

labral hypervascularity in, 121 late sequelae of, 206/ Leg-length discrepancy, 237/ Leg-length measurement, 37, 39, 39/ Leg lowering exercise, bilateral, 95/ Lichtleiter, 1

Ligament of Bigelow, 106, 107/ Ligamentum teres acute intraarticular hemorrhage of, 126

anatomy of, 108, 108/

arthroscopic anatomy, 118, 124-125, 124/ degenerative, 60

in developmental dysplasia of the hip, 220 function of, 14 hypertrophic, 220, 221, 224/ imaging of, 60, 61 / injuries to, arthroscopic visualization of, 125-126, 125/ normal, 53/, 60

normal development of, 117-118 sports-related injuries to, 195, 197,

197t, 201, 202/ tears of, 14-16, 16/, 17/ in athletes, 195, 197, 197t, 201, 202/

debridement of, 160, 164/ imaging of, 60, 61 / Log roll test, 45, 46/ Loose bodies in adolescents, 212 within anterior neck area, 174 in athletes, 201, 202/ calcified, 179

computed tomography of, 51-52 donor site of, 212/ in elderly patients, 226/, 227 within femoral head, 221, 223/ within femoral medial neck area, 174

nontraction arthroscopic detection of, 174, 177 within peripheral hip compartment, 179, 180, 184-186/, 184-187

Loose bodies (continued) within posterior gutter, 126/ as posttraumatic intraarticular fragments, 6-8, 7/, 8/ recurrence of, 8 removal of, 6-8, 157-158, 161/, 177, 178 in adolescents, 212, 212/ synovial chondromatosis-related, 6, 8, 20-21, 21, 23/

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