socket, thfit until a section through the joint was made, the
bones could not, though moving freely on each other, be
separated.—School of College.
E. o. ("69. A dried os innominatum and femur, from a man
not more than thirty-five set., affected with what must be, in
this instance, improperly termed || morbus coxae senilis.”
Here, the acetabulum is increased in depth, and the head of
the femur in length—the one by a new deposit of bone at the
brim, the other by a similar new growth on the surface of the
neck adjoining to it ; in both of which places, the new growth
is more dense and weighty than the old. The cartilaginous
incrustations of the joint have been nearly ah worn away, and
here and there, enamelled surfaces substituted in their stead.
—School of Surgery.
E. h. 770. Morbus coxse senilis in the right hip of a large
man, about fifty setatis (wet) : the left was much in the same
state. The head of the femur is flattened on the top, where,
in part, the cartilage has been absorbed, and its place taken
by a porphory deposit, rising up in points, and separated in
the interspaces by a gristly substance: the cartilage round
the sides of the head is of the ordinary depth ; and has undergone
the same changes as that on the top, though not to so
great an amount. The acetabulum has not been preserved;
but it was observed that the same diseased changes existed in
it as in the thigh-bone, and at points exactly corresponding.
The brim was also made to project more than usual by the
deposition of osteo-cartilaginous matter at its margin. The
capsule was a good deal thickened ; but the synovial membrane
had undergone little change, except in the parts above mentioned.
The neck of the bone, as shown in the preparation,
is shortened by one-half: its posterior aspect, towards which
the head is somewhat bent, has undergone the greatest
changes : here the neck, overhung by the defined, projecting
margin of the head, presents a cavity which is filled by a vascular
pulpy substance, like hypertrophied synovial membrane.
On the opposite surface there exists an irregular heap of cartilaginous
and bony deposit, mixed up incongruously together.
The fluid contents of the joint consisted of a glairy, transparent
synovia.—Doctor Houston.
E. h. 771. Section through the head, neck, and trochanter
of a thigh-boiie, showing a shortening and sinking down of
the neck, without any other remarkable changes.—School of
College.
E. I. 772. Left thigh-bone of a tall, elderly man, exhibiting
changes in the form of its head and neck produced by morbus
senilis. The head is flattened like a mushroom, so as to
measure at its inferior, overhanging margin, five inches in circumference
: the neck is shortened and brought so much to a
right angle with the shaft, that the tops of the head and
great trochanter, are exactly on the same level. The head,
except for about the size of a shilling superiorly, retains its
cartilaginous coating.—Professor Todd.
E. h. 773. Right thigh-bone of an old female, the superior
part of which exhibits a striking illustration of the changes
produced by the same disease, as that exhibited in the foregoing.
The head is flat and very broad, and its margin all
round, hangs down over the neck in irregular, bony nodules.
A circular patch, one inch and a half in diameter, is deprived
not only of its cartilage, but of the natural osseous incrustation,
and a sort of enamelling of the exposed porous structure
has commenced. The neck is short, horizontal, and
knobbed on the external surface. The other parts of the
bone appear sound.—Hdem.
E. h. 774. Left os femoris, the head of which is changed,
in rather an unusual wdy, from the same disease. It has not
been enlarged; but, by an extensive marginal deposit of
bone, has been made to appear like a helmet overhanging the
neck. There is little change in the latter, except, perhaps,