eChapters

Aim: To prepare a list of materials used for ammobilisation for fractured limb with gum bandage. Materials required

Definition

Compound fracture is a type of fracture in which a broken piece of bone protrudes to outside rupturing the skin with a risk of further infection.

Procedure of management

Clean and flush thoroughly the exposed bone using sterile NS followed by sterile medicated NS (NS with antibiotic or antiseptic). Figure (1)

Mop dry the wound thoroughly.

Apply topical antiseptic or antibiotic.

Put the bone inside the part.

With a sterile artery forcep fix a flushing catheter within the wound at its higher level. Figure (2)

Cover the wound over fracture site with sterile soft padded absorbent cotton padding. Figure (2)

The joint below and above of the fracture site covered with thick layered padded cloth before application of POP cast. Figure (3)

POP cast is wrapped as per the conventional procedure over the fracture site covering the joint below and above. Figure (4)

Objective

The poor quality of Plaster Of Paris makes the cast weak. For its strengthening, 4pieces of padded green bamboo splints are placed within POP cast along its four sides.

Requirements

4 green bamboo splints which are padded soft at both the ends

Aim

To know the portion of limb to be covered by P.O.P cast bandage for immobilization of fore limb (Fig 1a) & hind limb ( Fig 2a) bone fracture.

As per general rule, joint below and joint above should be covered.

Indication -To know the method of POP bandaging technique.

Method of preparation of POP bandage rolls-

A gauze bandage of 6" or 4" width is spread on a clean floor. Plaster of paris powder is spread uniformly over the entire length of bandage & is folded into roll bandage. In this way 4-6 bandage rolls are prepared.fig-1(a)&(b)

Method of preparation of pop bandage splints

The length of the prepared pop splint is determined by measuring the entire length of fractured bone along with the joint below and above the fractured site) are measured. This much of length of gauze is spread for splint preparation.

POP powder is impregnated upon gauze. The gauze is again spread over this much of length in this manner sprinkling of POP powder & overlapping gauze bandage upto 4-6 layer are continued [fig-1 (b)]

Fig. 1: Cotton Bandage

Aim

To know the various level of fracture & their appropriate method of immobilisation for large animal fracture.

Definition

Fracture is a disolution of bony continuity with or without displacement of the fragments.

Definition: A fracture is a dissolution of bony continuity with or without displacement of the fragments.

Different stages of fracture: Inflammatory phase, reparative phase, and remodelling phase.

Fundamental steps

Complete fracture- It is a fracture in which there is complete loss of bone continuity and the bone is divided into two or more fragments (Fig.1).

Green stick fracture- It is the fracture in which, the cortex opposite to the bending force fractures completely, while the cortex under the force remains in tact, commonly seen in immature animals, (Fig-2)

Overriding fracture-A fracture in which the fragments lie side by side, causing shortening of limb (Fig-3)

Transverse fracture-The fracture line here runs transverse to the long axis of bone. Such type of fracture is caused by bending forces (Fig-4).

Oblique fracture- In this the fracture line runs oblique to the long axis of the bone. Such type of fracture is caused by bending with axial compression (Fig-5).

Spiral fracture-Here the fracture line spirals along the long axis of bone. Such type of fracture is caused by torsion, twisting or rotational forces e.g. in humorous (Fig-6)

Comminuted fracture- In this fracture, at least three fracture lines inter connect each other at one point (Fig-7).

First Aid in Orthopaedic Patient

Immediately transfer the animal to a safety place.

The place should be well settled, well ventilated, neat and clean.

If the fracture site is limb and it is a simple fracture, immediately immobilize the animal with soft cotton padding and plastic scale placed at four sites.

If the fracture site is limb and it is a compound fracture, cover the fractured site v/ith th’ck padded clean cotton cloth and few bamboo splint placed on four sides to keep limb straight.

Control the bleeding, if bleeding occurs at time of covering of fractured site with thick padded clean cotton cloth.

If the fracture site is vertebral column, it is better not to lift the patient vigorously.

A patient with vertebral column fracture shouldn’t be allowed for standing.

M.mMedial malleolus

M.I., Lateral malleolus

T, Tibia

T. t., Tibial tarsal bone

T.f., Fibulartarsal bone

T.c. + 4, Fused central and fourth tarsal bones.

T.1, First tarsal bone

T.2+3, Fused second and third tarsal bones

Mt.2,Small, or second metatarsal bone

Mt.3+4, Large metatarsal or fused third or fourth metatarsal bon

FEMUR

The femur has a relatively small shaft, which is cylindrical in its middle. The trochanter minor has the form of a rough tuberosity.

The trochanteric ridge connects it with the trochanter major. The third trochanter is absent. The supracondyloid fossa is shallow. The proximal extremity is very wide.

The fovea capitis is a small depression on the middle of the heacKfor the attachment of the round ligament.

The trochanter major is very massive and is undivided; its lateral surface is very rough. The trochanteric fossa is deep. The ridges of the trochlea are less oblique.

ILIUM

The ilium are almost parallel to each other and form a much smaller angle with the horizontal plane than in the horse. They are relatively small. The gluteal line is prominent and is nearly parallel to the lateral border; it join the ischiatic spine. A rounded ridge separates the two parts of the pelvic surface. The surface for articulation with the sacrum is triangular. The tuber sacrale is truncated, does not extend so high as the vertebral spines, and is separated from the opposite angle by a wider interval than in the horse. The tuber coxae is relatively large and prominent; it is not so oblique as in the horse, and is wide in the middle, smaller at either end. The shaft is short and compressed from side to side.

The ilia are almost parallel to each other and form a much smaller angle with the horizontal plane than in the horses.they are relatively small. The glutei line is prominent and nearly parallel to the lateral border,it joins the ischiatic spine.A rounded ridge separates the two parts of pelvic surface.The surface for articulation with sacrum is triangular. The tuber coxae is relatively prominent and not so oblique as in horses, wide in middle,smaller at either end.Shaft is short and compressed from side to side.

Ischium is large.Its long axis is directed obliquely upward and downward forming an angle of 5o to 60 degree with horizontal plane.The transverse axis is obliquely downward and inward at similar angle so concave from side to side.Ventral surface has rough ridge for muscular attatchment. The ischiatic spine is high and thin and bears a series of vertical rough line. lschiuatic arch is narrow and deep.The tuber ischii is large and three sided bearing dorsal ,ventral, lateral tuberosities.The symphysis bears a ventral ridge which fades out at ischial arch.The acetabular branch of pubis is narrow and is directed laterally,and a little forward.The anterior border is marked by a transverse groove which ends below rough iliopectineal eminence. The symphyseal branch is wide and thin. The acetabulum is smaller than in horses. Rim is rounded and usually marked by two notches. One is directed to deep acetabular fossa and and converted to foramen. The other is anteromedial and small also replaced by foramen or absent.

DIGITS

Four digits are presents in the ox of these two the third and forth -are fully developed and have three phalanges and three sesamoid each.The second and fifth are vestiges.

FRIST PHALANX- (Fig.No.1)

The interdigital surface is flattened and its volor parts bears a prominence for the attachment of the interdigital ligaments.

The proximal extremity is relatively large and somewhat compressed from side to side.

The articular surface is concave from before backword and is divided by sagittal groove in two areas, of which the aboxial one is the larger and higher.

Behind tese are two facets for articulation with the sesamoid bones.

The distal extremity smaller than the proximal.