212 MORBID ANATOMY.
she could bring the sole of the foot to the ground, though there was some shortening. 1869.
Dr. H. J. Bigelow.
1183-6. Four photographs of a soldier, who could voluntarily dislocate the hip ; a front and side view, in natural posi- tion ; and a back and side view, when dislocated. While skirmishing up a hill he sprang back suddenly, got his foot -,-s entangled, and his weight dislocated the hip. This being at once reduced, he marched seven miles, and from that time continued on duty for fifteen days, when he entered a hospital. From Dr. L.'s report : " He is able, at any time to luxate the hip-joint, and does it by pressing the foot on the floor, to fix it firmly. He then contracts the adductors, throwing out the pelvis, when the head leaves the socket, and goes on the dorsum." 1865.
Dr. George H. Lyman.
1187. Knee-joint dislocated ; a wet specimen. The crucial lig-
ament is torn from the femur ; and the periosteum and
outer lateral ligament are stripped up to the extent of 2J
in. A very small piece is broken from the fibula, and this
is the only fracture. 1847. Dr. J. C. Warren.
1188-9. Permanent dislocation of the patella outward. Two casts ; one shows the knee-joint flexed, and the other ex- tended ; the deformity being much greater in the first than in the last.
The patient was a lad, set. 14-15 years ; and the accident was caused three years before by a fall upon the knee, while skating. Half an hour after the fall he was able to continue skating, and for two or three da3's he perceived nothing unusual. Swelling and pain in the joint then came on, and for five months from that time he kept his bed. On getting up, Dr. C. found the outer edge of the patella apparently resting upon the outer condyle of the femur, and tilting the inner edge forward ; the groove be- tween the cond3 T les being easily felt. The ligamentum patella was stretched upward and outward so as to keep the bone fixed ; and it was narrower than the one upon the other side, as if it had been partially ruptured. The only
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