ation is of aid in locating the head
of the humerus.
Treatment.--When it is evident that a subject should be given
treatment and not destroyed, the animal must be cast and completely
anesthetized. With complete relaxation thus secured by rotation of the
limb, using the hip joint region as a pivot, reduction may be effected.
Traction is exerted in the same direction from the acetabulum that the
head of the femur is situated and by pressing over the joint, the
displaced bone may be returned in position. If luxation is downward,
traction on the extremity will tend to dislodge the head of the femur
from the inferior acetabular margin making reduction possible.
The same general plan which is ordinarily employed in correcting
luxation is indicated here, but because of the heavy musculature of the
hip, complete anesthesia is imperative in all such manipulations.
Gluteal Tendo-Synovitis.
The glutens medius (g. maximus) muscle is inserted chiefly by means of
two tendons; one to the summit of the trochanter major of the femur and
the other passing over the anterior part of the convexity of the
trochanter, and being attached to the crest below it. The trochanter is
covered with cartilage, and a bursa (the trochanteric) is interposed
between the tendon and the cartilage.
Etiology and Occurrence.--This affection is probably caused in most
instances by direct injury to the parts, such as may be occasioned by
being kicked, falling on pavement, or being struck by the body of a
heavy wagon. Strains in pulling or in slipping are undoubtedly causative
factors and in draft horses such strains may result in involvement of
this synovial apparatus.
Symptomatology.--If pain be severe and inflammation acute, weight may
not be borne with the affected member. There is some local manifestation
of the condition in acute cases. Swelling of the tissues contiguous to
the bursa is present and pain is evinced upon manipulation of the
parts. A characteristic gait marks inflammation of the trochanteric
bursa, and as Gunther has put it, the subject generally moves or trots
as does the dog--the sound member being carried in advance of the
affected one and the forward stride of the diseased leg is shortened. In
some chronic cases crepitation is discernible by holding the hand on the
trochanter while the subject walks.
Treatment.--In the first stages of an acute affection absolute quiet
must be enforced; local antiphlogistic applications are
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