internal fixation


Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Encyclopedia, Wikipedia.

in·ter·nal fix·a·tion

stabilization of fractured bony parts by direct fixation to one another with surgical wires, screws, pins, rods, or plates.

internal fixation

any method of holding together the fragments of a fractured bone without the use of appliances external to the skin. After open reduction of the fracture, smooth or threaded pins, Kirschner wires, screws, plates attached by screws, or medullary nails may be inserted through an appropriate incision to stabilize the fragments. In some instances the device is removed at a later operation, but it may remain in the body permanently. Compare external pin fixation.
enlarge picture
Internal fixation

internal fixation

Intraosseous fixation Orthopedics Open reduction and stabilization of fractured bone fragments by direct binding to each other with IF devices–eg, screws, plates, wires, pins, intramedullary rods, nails, spinal fixation devices. Cf External fixation.

in·ter·nal fix·a·tion

(in-tĕr'năl fik-sā'shŭn)
Stabilization of fractured bony parts by direct fixation to one another with surgical wires, screws, pins, rods, plates, or methylmethacrylate.

in·ter·nal fix·a·tion

(in-tĕr'năl fik-sā'shŭn)
Stabilization of fractured bony parts by direct fixation to one another with surgical wires, screws, pins, rods, or plates.

internal

situated or occurring within or on the inside; in anatomy, many structures formerly called internal are now termed medial.

internal abdominal abscess
see retroperitoneal abscess.
internal carotid artery arteritis
parasitic arteritis of the external carotid artery as it courses around the edge of the guttural pouch may lead to copious nasal bleeding in horses when the artery ruptures.
internal elastic membrane
a condensation of elastic fibers separating the tunica intima from the tunica media.
internal environment
within the animal; includes blood pressure, circulating blood volume, tissue fluid volume, blood sugar level, tidal air volume, glomerular filtration rate.
internal fixation
immobilization of fractured bones by internal appliances as distinct from casts or external fixation. Includes intramedullary pins which run the length of the medullary cavity, transfixing pins that penetrate across the medullary cavity and are maintained in position by external bars or casts, and compression plating based on the use of special screws and plates.
internal hernia
see hernia.
internal inguinal ring
see abdominal ring (internal).
internal layer
unshelled eggs are free in the peritoneal cavity, thought to have been delivered there by reverse peristalsis in the oviduct.
internal laying
eggs are deposited in the peritoneal cavity and become walled off.
internal limiting membrane
a persistent fibrillar condensation of the vitreous body of the eye; it covers the retina and ciliary body.
internal parasitic mites
poultry cutaneous mites in a number of families are found in the trachea, air sacs and subcutaneous tissues. Includes Cytodites, Epidermoptes, Laminosioptes, Pneumonyssus, Rivoltsia and Sternastoma spp.
internal rate of return
the interest rate needed to discount future income in order to equate it with the present investment in a program.
internal repeat
repetitive base sequences within DNA which may be inverted (indirect) or non-inverted (direct).
internal root sheath
connective tissue sheath around the hair follicle; this part of the sheath extends only to the opening of sebaceous glands into the follicle. See also root sheath cuticle.
turkey internal hemorrhage
see dissecting aneurysm.
internal vomiting
any reflux of intestinal contents which does not reach the mouth, e.g. abomasal reflux into the rumenoreticulum.
References in periodicals archive ?
Internal fixation versus arthroplasty for displaced femoral neck fractures: what is the evidence?
8] 150 cases of ankle fractures were treated by open reduction and internal fixation using AO/ASIF method and obtained 90% good results.
Arthroscopically assisted reduction and internal fixation of tibial plateau fractures: report of twenty cases.
One hundred and thirty-seven consecutive patients of tibial plateau fractures treated with open reduction and internal fixation were identified.
Internal fixation of scaphoid fracture through a small incision without open reduction of the fracture site of the scaphoid has been reported (Haddad and Goddard, 1998; McQueen et al.
Fixation of mandibular fractures: a comparative analysis of rigid internal fixation and standard therapy technique.
Stress Fracture Healing Rates Vary by Approach Intervention Success Rate Non-weight-bearing cast for 6 weeks 70/73 (96%) Non-weight-bearing cast for less than 6 weeks 17/22 (77%) Weight-bearing cast and/or rest 41/92 (45%) Surgery with open reduction and internal fixation 54/66 (82%) Source: Dr.
Eight patients (3 females and 5 males) with Mason type II isolated radial head fractures (Figure 1) aged between 15 and 65 years (average 39 years) underwent open reduction and internal fixation with the pre bend K-wires within 3-5 days of injury.
Biotech International selected PEEK-OPTIMA for the development of three internal fixation devices for use in the hand, knee, and ankle.
Internal fixation sales increased 5% worldwide during the third quarter and decreased 14% in the United States.
Six months later, she presented to our institution with an established lateral condyle nonunion [that required] treatment by open reduction, debridement of the fibrous nonunion, and internal fixation with smooth pins.
Study of 215 displaced fractures treated with closed reduction with internal fixation