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Topic: Dislocation

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	Dislocation - Wikipedia, the free encyclopedia
		The Burgers vector for an edge dislocation is marked in fl in Figure D. It is perpendicular to the dislocation line (marked in blue in Figure D) in the case of the edge, and parallel to it in the case of the screw.
		When a dislocation line intersects the surface of a metallic material, the associated strain field locally increases the relative susceptibility of the material to acidic etching and an etch pit of regular geometrical format results.
		Tangles of dislocations are found at the early stage of deformation and appear as non well-defined boundaries; the process of dynamic recovery leads eventually to the formation of a cellular structure containing boundaries with misorientation lower than 15º (low angle grain boundaries).
	en.wikipedia.org /wiki/Dislocation (1426 words)

	Dislocation (syntax) - Wikipedia, the free encyclopedia
		In syntax, dislocation is the detachment of a constituent from its phrase.
		Right dislocation often occurs with a clarifying afterthought: "We went to the store" is a coherent sentence, but "she and I" is added afterward to clarify exactly who "we" is. By contrast, left dislocation is like clefting: it can be used to emphasize or define a topic.
		Another way to classify a dislocation is as a pronominal dislocation, in which the constituent is replaced by a pronoun in the original phrase (as in the above examples), or as a clitic dislocation, in which it's replaced by a clitic.
	en.wikipedia.org /wiki/Dislocation_(syntax) (592 words)

	Dr. Koop - Sternoclavicular Joint Dislocation- Health Encyclopedia and Reference
		One may reduce the dislocation and provide stability by a sling between the clavicle and the first rib or by tenodesis, using the subclavius tendon.
		If the dislocation is old and degeneration of the joint is probable, resection of the inner end of the clavicle should be done.
		Reduction and stabilization of the SC joint for an acute anterior dislocation should never be advised when closed reduction is unsuccessful, since the vast majority of such patients often become relatively asymptomatic.
	www.drkoop.com /encyclopedia/93/608.html (772 words)

	Rothman Institute Orthopaedics: Total Hip Replacement Dislocations: What To Do?
		Total hip replacement dislocation is a painful condition in which the prosthetic femoral head, or the "ball" on the proximal end of the femur or thigh bone, no longer articulates, or "comes out of joint," with the socket in the acetabular cup of the pelvis.
		Dislocation is the second most common reason for revision surgery after prosthetic loosening.
		Surgical Approach: The posterolateral approach has the highest associated incidence of dislocation, and this is believed to be due to straightening of the spine and flexing of the pelvis in the side-lying position used during this approach on the operating table.
	rothmaninstitute.com /patienteducation/joint/hip/thr-dislocation.htm (1317 words)

	Dislocation - MayoClinic.com
		A dislocation is an injury to your joint in which the ends of your bones are forced from their normal positions.
		Dislocations may occur in your major joints — shoulder, hip, knee, elbow and ankle — or in the smaller joints in your fingers, thumbs and toes.
		Dislocations are common injuries in contact sports, such as football and hockey, and in sports that may involve falls, such as downhill skiing, gymnastics and volleyball.
	www.mayoclinic.com /health/dislocation/DS00239 (277 words)

	Developmental Dislocation of the Hip - Wheeless' Textbook of Orthopaedics
		Congenital dislocation of the hip in Ehlers-Danlos syndrome.
		Conservative treatment of congenital dislocation of the hip in the newborn and infant.
		Perinatal observations on the etiology of congenital dislocation of the hip.
	www.wheelessonline.com /ortho/developmental_dislocation_of_the_hip (747 words)

	Shoulder Dislocation
		Dislocation of the shoulder means the displacement of the upper arm bone (humerus) out of the shoulder joint.
		The shoulder joint is the most frequently dislocated major joint of the body - often caused by a significant force that separates the shoulder joint's ball (the top rounded portion of the upper arm bone, or humerus) away from the joint's socket (glenoid).
		backward dislocation - this type of dislocation may be caused by a direct blow to the front of the shoulder, or the violent twisting of the upper arm.
	www.healthsystem.virginia.edu /uvahealth/adult_spine/dislocate.cfm (355 words)

	eMedicine - Hand Dislocation : Article by Jeff Chan
		For dorsal dislocations at the PIP joint, the initial radiographs often are postreduction because the athlete, trainer, or coach commonly reduces the dislocation at the scene.
		Dislocations of the DIP joint are almost always reducible with longitudinal traction and gentle manipulation in the direction opposite to the deformity.
		Volar PIP dislocations with a rotatory component often are difficult to reduce by closed means because the head of the proximal phalanx becomes trapped between the central slip and one of the lateral bands of the extensor mechanism.
	www.emedicine.com /SPORTS/topic46.htm (7824 words)

	Shoulder Dislocation (Site not responding. Last check: 2007-11-01)
		In a typical case of a dislocated shoulder, a strong force that pulls the shoulder outward (abduction) or extreme rotation of the joint pops the ball of the humerus out of the shoulder socket.
		Dislocation commonly occurs when there is a backward pull on the arm that either catches the muscles unprepared to resist or overwhelms the muscles.
		Doctors usually diagnose a dislocation by a physical examination, and x rays may be taken to confirm the diagnosis and to rule out a related fracture.
	healthlink.mcw.edu /article/926060431.html (515 words)

	Dislocation of the hip - DynoMed.com (Site not responding. Last check: 2007-11-01)
		A hip dislocation occurs when the ball of the hip joint comes out of its socket. Usually, a large amount of force is necessary to dislocate the hip. The hip is a very stable joint that is reinforced by ligaments and large muscles.
		In a posterior dislocation, there is usually a great deal of power brought to bear to a flexed knee and to the hip. Anterior dislocations occur when force is placed on a straightened leg.
		Moving vehicle accidents cause the majority of traumatic dislocations and, in particular, posterior hip dislocations. In an accident, the knees of the front seat occupants usually hit the dashboard during a head-on collision causing the dislocation. Central fracture/dislocations occur mainly from falls from a great height or from a lateral impact on the hip.
	www.dynomed.com /encyclopedia/encyclopedia/hip_and_thigh/Dislocation_of_the_Hip.html (509 words)

	Dr. Koop - Knee cap dislocation
		A dislocated knee cap is when the triangular bone covering the knee (patella) moves or slides out of place.
		Dislocated knee caps most often occur in women with certain anatomic features of the knee, which predispose them to this condition.
		When it is dislocated, the knee cap may slip sideways and around to the outside of the knee.
	www.drkoop.com /ency/93/001070.html (346 words)

	Dislocation: First aid - MayoClinic.com (Site not responding. Last check: 2007-11-01)
		A dislocation is an injury in which the ends of your bones are forced from their normal positions.
		Dislocations are common injuries in contact sports, such as football and hockey, and in sports that may involve falls, such as downhill skiing and volleyball.
		Dislocations may occur in major joints such as your shoulder, hip, knee, elbow or ankle or in smaller joints such as your finger, thumb or toe.
	www.mayoclinic.com /health/first-aid-dislocation/FA00009 (302 words)

	Understanding Dislocation -- the Basics
		Basically, "dislocation" means that that the bone has slipped out of its normal position in the joint.
		Dislocations can occur in the large joints - shoulder, hip, knee, elbow and ankle or in the smaller joints - fingers and toes.
		It often is difficult to tell whether the injury is a dislocated bone or a broken bone.
	www.webmd.com /content/article/8/1680_53841.htm (161 words)

	MedlinePlus Medical Encyclopedia: Dislocation
		A dislocation is a separation of two bones where they meet at a joint.
		Dislocations are usually caused by a sudden impact to the joint.
		Nursemaid's elbow is a partial dislocation common in toddlers.
	www.nlm.nih.gov /medlineplus/ency/article/000014.htm (704 words)

	IAP/TU Wien STM Gallery: Dislocations (Site not responding. Last check: 2007-11-01)
		Dislocations are linear defects inside a crystal lattice and govern the plastic behaviour of a material.
		A dislocation is characterized by its Burgers vector: If you imagine going around the dislocation line, and exactly going back as many atoms in each direction as you have gone forward, you will not come back to the same atom where you have started.
		One side-remark for dislocation experts: Strictly speaking, the Burgers vector is not exactly perpendicular to the surface here, but rather 45° inclined, whereas the dislocation line is roughly perpendicular to the surface (we can't see that, it follows from theory).
	www.iap.tuwien.ac.at /www/surface/STM_Gallery/dislocations.html (633 words)

	Shoulder1.com - Dislocated Shoulder
		In a dislocation, the humerus is forced out of the glenoid cavity by a strong blow or severe weakness of the rotator cuff.
		A partial dislocation of the shoulder is known as a Subluxation.
		A full dislocation is very painful, and, since the rotator cuff tendons are weakened when it occurs, the chance of recurrent dislocation, a condition known as instability, increases with each occurrence.
	www.shoulder1.com /care/condition20.cfm/8 (549 words)

	Dislocation
		A dislocation occurs when a bone is pulled or pushed out of place (out of its normal relationship to the other bones that make up a joint).
		A dislocation may be caused by a direct blow to the joint, a fall, or a sudden twisting movement.
		A dislocation in a young child may be caused by abuse.
	www.webmd.com /hw/health_guide_atoz/sts14552.asp?navbar=aa62697 (187 words)

	Opaque Melodies That Would Bug Most People - A Short History of Dislocation in Six Tracks (Site not responding. Last check: 2007-11-01)
		New media artists have also been exploring the perverse locutions of dislocation for some years now and their work, like the work of new media theorists, actively engages with the emerging unconscious of the cyber age: and, yes, it is indeed an unconscious structured like a language, this unsettling “grammar for being elsewhere” (2).
		This ambivalence towards dislocation reflects one of the truisms of the information age: and that is, whether listening to John Zorn's music or communicating with remote others via email or IRC, interconnectedness is very much in the eye and ear of the beholder.
		This dialectic of disintegration and integration, dislocation as the creation of new locations, draws attention to the recombinant nature of a poetics apposite to the age of decentred networks and telesthesia.
	www.sensesofcinema.com /contents/01/18/dislocation.html (5150 words)

	Subluxation / Dislocation of the Patella - Wheeless' Textbook of Orthopaedics
		Their etiological role in patellar dislocation, chondromalacia, and apophysitis of the tibial tubercle.
		- Patella alta and recurrent dislocation of the patella.
		- Habitual dislocation of the patella in flexion.
	www.wheelessonline.com /ortho/subluxation_dislocation_of_the_patella (742 words)

	University Sports Medicine - WHAT IS A FINGER DISLOCATION?
		A dislocation usually occurs when there is an accident such as a ball striking the tips of the finger or a person falling forcefully onto a finger or getting a finger hooked into a piece of equipment like a football mask or a basketball net
		Your doctor will recommend that your dislocated finger be splinted or "buddy taped" (taped to the finger next to it) for 3 to 6 weeks after your injury.
		Finger dislocations are usually the result of accidents that are not preventable.
	www.ubsportsmed.buffalo.edu /education/fingerdis.html (406 words)

	The Physician and Sportsmedicine: Shoulder Dislocation in Young Athletes
		The arm is dislocated most often when in abduction and external rotation, as seen in football, basketball, and wrestling.
		Radiographs should be obtained before reduction is attempted unless the direction of dislocation is known from prior dislocations and an experienced physician performs the maneuver.
		Traditional methods of nonoperative treatment, including reduction of the dislocation, immobilization, and strengthening exercises, have been inconsistent in eliminating recurrent dislocations, which are problematic for any athlete, not just those who compete at elite levels.
	www.physsportsmed.com /issues/2002/12_02/levine.htm (3362 words)

	Dislocation (Site not responding. Last check: 2007-11-01)
		Basketball players and football players also commonly dislocate joints in their fingers and hands by accidentally striking the ball, the ground or another player.
		A hard blow to a joint during a motor vehicle accident is a common source of dislocation.
		Once you've dislocated a joint, you may be more susceptible to future dislocations.
	www.prescriptiondrugchat.com /showthread.php?t=1611 (858 words)

	Dislocation
		If a sudden impact injures a joint, the bones that meet at that joint may become dislocated (not connected).
		Usually the joint capsule and ligaments tear when a joint becomes dislocated, and often the nerves are injured.
		It may be hard to tell a dislocated bone from a broken bone.
	www.umm.edu /ency/article/000014.htm (269 words)

	Dr. Koop - Radial head dislocation
		A dislocation means the displacement of a body part (usually a joint) from its normal location.
		In a radial head dislocation, the forearm slips out of position at the elbow joint.
		Once the elbow dislocates, it is likely to do so again, especially in the three or four weeks following the injury.
	www.drkoop.com /ency/93/000015.html (335 words)

	ENLmedical.com: Conditions And Concerns: Medical Encyclopedia: Patellar dislocation
		Dislocation usually occurs as a result of sudden direction changes while running and the knee is under stress or it may occur as a direct result of injury.
		If the condition causing dislocation is left uncorrected repeat dislocations tend to cause less pain and immediate disability.
		Call your health care provider if you are being treated for a patellar dislocation and you notice increased instability in your knee, if pain or swelling return after they initially subsided, or if your injury does not appear to be resolving with time.
	www.enlmedical.com /article/001070.htm (332 words)

	Shoulder Dislocation
		The bones of the shoulder are the socket of the shoulder blade (scapula) and the ball at the upper end of the arm bone (humerus).
		Subluxation versus dislocation: A subluxation occurs when 2 joint (articular) surfaces have lost their usual contact.
		A dislocation is the same as a 100% subluxation.
	www.emedicinehealth.com /shoulder_dislocation/article_em.htm (324 words)

	Dislocation
		Dislocated femoral component secondary to steep acetabular cup inclination, pre and post revision.
		Dislocated femoral component related to non union of greater trochanteric osteotomy.
		Dislocated femoral component and acetabular cup in grossly loose arthroplasty.
	www.gentili.net /thr/dislocat.htm (169 words)

	Shoulder Dislocation Prolotherapy Hauser
		ACTIVE SUBSCRIBERS DO Ross Hauser, M.D. Shoulder dislocation occurs when a patient falls on an outstretched hand or when an anterior force to the shoulder occurs when the shoulder is abducted and externally rotated.
		There is more than one type of shoulder dislocation, but far and away the most important is the anterior dislocation, which occurs in approximately 95 percent of all cases.
		While surgery can treat the anterior dislocation effectively in many cases, post-operative pain, lengthy rehabilitation, and a chance of not returning to a previous level of sports participation are reasons to consider Prolotherapy as an alternative to standard treatment approaches.
	www.prolonews.com /shoulder_dislocation_prolotherapy_hauser.htm (646 words)

	Carpal tunnel syndrome - Wikipedia, the free encyclopedia
		The median nerve can be compressed by a decrease in the size of the canal and/or an increase in the size of the contents, ie the flexor tendons.
		Dislocation of one of the carpal bones of the wrist.
		Strong blunt trauma to the wrist or lower forearm, incurred for example by using arm extremity to cushion a fall or protecting oneself from falling heavy objects.
	en.wikipedia.org /wiki/Carpal_tunnel_syndrome (4093 words)

	Congenital Hip Dislocation
		Some children are born with a hip problem called congenital hip dislocation (dysplasia).
		In hip dislocation, the ball at the top of the thighbone (femoral head) does not sit securely in the socket (acetabulum) of the hip joint.
		In congenital dislocation, the earliest sign may be a “clicking” sound when the newborn’s legs are pushed apart.
	www.zimmer.com /z/ctl/op/global/action/1/id/7989/template/PC/navid/167 (377 words)

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