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Topic: Hamate bone


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In the News (Thu 9 Jul 09)

  
  Carpus - Wikipedia, the free encyclopedia
In tetrapods, the carpus is the cluster of bones in the hand between the radius and ulna and the metacarpus.
The pisiform articulates with one bone, the triangular.
The hamate articulates with five bones: the lunate proximally, the fourth and fifth metacarpals distally, the triangular medially, the capitate laterally.
en.wikipedia.org /wiki/Carpus   (1952 words)

  
 Bone
Hamate bone The hamate bone (os hamatum; unciform bone) is a hand that may be readily distinguished by its wedge-shaped...
Ishango Bone The Ishango bone is a Belgium.
Vomer bone The vomer bone is one of the unpaired facial maxillary bones.
www.brainyencyclopedia.com /topics/bone.html   (1082 words)

  
 Related WordNet synsets for SUMO concept Bone   (Site not responding. Last check: 2007-11-05)
a wrist bone that articulates with the pisiform and hamate and lunate bones
bone (calcified tissue) surrounding the pulp cavity of a tooth
the bones of the skull that frame the mouth and serve to open it; the bones that hold the teeth
icosym-nt.cvut.cz /kifb-test/wordnet/_bone.html   (1575 words)

  
 Hamate bone   (Site not responding. Last check: 2007-11-05)
The hamate bone (os hamatum; unciform bone) is a bone in the human hand that may be readily distinguished by its wedge-shaped form, and the hook-like process which projects from its volar surface.
This is the bone most commonly fracturedd when an amateur golfer hits the ground hard with his/her golf club on his/her downswing.
Symptoms are pain aggravated by gripping, tenderness over the hamate and symptoms of irritation of the ulnar nerve.
www.sciencedaily.com /encyclopedia/hamate_bone   (454 words)

  
 wiki/Hamate bone Definition / wiki/Hamate bone Research   (Site not responding. Last check: 2007-11-05)
The hamate bone (os hamatum; unciform bone) is a boneBone refers either to a hardened connective tissue or to one of the individual structures, or organs, into which it is formed, found in many animals.
Bones support body structures, protect internal organs, and (in conjunction with muscles) facilitate movement; are also involved with cell formation, calcium metabolism, and mineral storage.
The bones of an animal are, collectively, known as the skeleton....
www.elresearch.com /wiki/Hamate_bone   (749 words)

  
 Hand
This bone is the first carpal bone (in the distal row) on the thumb side of the hand.
This bone is in the distal row of the carpals, between the trapezium and the capitate bones.
The bones of the fingers (and toes) are known as phalanges (singular : phalanx).
www.american.edu /adonahue/k9hand.htm   (1041 words)

  
 eMedicine - Hand, Fractures and Dislocations: Wrist : Article by Edward E Tredget, MD, MSc, FRCS(C)   (Site not responding. Last check: 2007-11-05)
Hamate fractures most often occur during trauma or golf, baseball, hockey, and other stick-handling sports; the hamate bone most often fractures at the hamulus (see Image 6).
The distal hamate articulates with the styloid process of the third metacarpal, the entire base of the third metacarpal, and often the proximal medial facet of the fourth metacarpal.
Bone scan of the wrist illustrating increased uptake in the left wrist after Herbert screw fixation of a transscaphoid perilunate fracture dislocation of the wrist 3 months postoperatively.
www.emedicine.com /plastic/topic318.htm   (9653 words)

  
 Hamate Bone Fracture - Topic Powered by Groupee Community
The Hamate is a small hooked shape bone in the lower palm of the hand.
The "Direct Protect" is a great piece of equipment to wear to protect the hamate bone, most big leaguers wear it...
After the pain got worse, they figured that it was a fractured Hamate bone.
hsbaseballweb.com /eve/ubb.x/a/tpc/f/2976083255/m/7866039585   (283 words)

  
 Hook of the hamate
Fractures are especially common at the hook of the hamate and result from falls on the dorsiflexed wrist or from direct force.
Bone scans, conventional tomography and CT scans are helpful in diagnosing such lesions (Fig.1).
The hook of the hamate is frequently involved in the hypothenar hammer syndrome.
www.amershamhealth.com /medcyclopaedia/Volume%20III%201/hook%20of%20the%20hamate.html   (164 words)

  
 Carpus   (Site not responding. Last check: 2007-11-05)
In Greek mythology, Carpus "fruit" was a son of Chloris and Boreas.
The structure in all is similar, viz., cancellous tissue enclosed in a layer of compact bone.
Figure 7 : The left greater multangular bone.
www.portaljuice.com /carpus.html   (1949 words)

  
 Hamate   (Site not responding. Last check: 2007-11-05)
The proximal surface of the hamate is convex for articulation with the concave proximal carpals.
The distal surface articulates with the fourth and fifth metacarpals.
The lateral surface articulates with the capitate by a facet covering all but its distal palmar angle.
classes.kumc.edu /sah/resources/handkines/bone/hamate.html   (54 words)

  
 UW Radiology Main Online Teaching File: Case 49 Answers   (Site not responding. Last check: 2007-11-05)
The distal surface of the hamate, which is concave, articulates with the convex base of the fourth and fifth metacarpals.
However, the presence of an oblong bony fragment projecting from the dorsal surface of the carpus immediately proximal to the fourth and/or fifth metacarpal bases should be specifically sought in patients with a posterior dislocation of the fourth and/or fifth metacarpals.
The differential diagnosis of a bone fragment projecting from the dorsal aspect of the carpus should include avulsion fracture of the triquetrum or other carpal bone and fracture of the base of the fourth or fifth metacarpal.
www.rad.washington.edu /maintf/cases/unk49/answers.html   (343 words)

  
 Dictionary of Meaning www.mauspfeil.net
This is the bone most commonly fracture (bone) fractured when an amateur golfer hits the ground hard with his/her golf club (equipment) golf club on his/her downswing.
*Bone#Terminology Bone terminology *Terms for anatomical location Category:Skeletal system ''This article is based on an entry from the 1918 edition of Gray's Anatomy, which is in the public domain.
There you find a list of all editors and the possibility to edit the original text of the article Hamate bone.
www.mauspfeil.net /Hamate_bone.html   (465 words)

  
 SurfWax: News, Reviews and Articles On Hamate Bone
He had missed much of it because of a broken hamate bone, which is at the end of the wrist, near the hand...
Last year while with the Oakland A's, Guillen broke the hook of the hamate bone on the same hand in September and postponed surgery because the A's were in the playoff race and he wanted to play.
The hamate bone is located at the base of the hand and is frequently broken by baseball players because the knob of the bat hits the hamate "hook" and breaks it.
anatomy.surfwax.com /files/Hamate_bone_anatomy.html   (2277 words)

  
 Wrist Troubles Drain Prospects' Power
The hamate, a hook-shaped bone in the wrist, is one of eight small bones that give the wrist joint strength and flexibility.
It owes its shape to its function, which is in part to protect a sheath of tendons, blood vessels and nerves traveling from the arm to the fingers in the hand.
Trainers aren't sure why the hamate breaks, though some say it's because the handles of today's bats are thinner, or because batters often clutch the knob of the bat.
www.baseballamerica.com /today/features/040331wrist.html   (1033 words)

  
 [No title]
Two cases of rupture of the flexor tendons of the little finger associated with a fracture of the hook of the hamate bone are presented.
Excision of the fractured hook and repair of the tendons by a short graft from the palmaris longus in one case and by the transfer of the superficial flexor of the ring finger in the other case gave a good final result.
Cortical bone dimensions of the second metacarpal were analyzed relative to chronological age, skeletal maturity and body size in 280 ice hockey players 10 through 12 years of age.
home.online.no /~valset/hock66a.htm   (4459 words)

  
 KORT - Kentucky Orthopedic Rehab Team   (Site not responding. Last check: 2007-11-05)
The hamate bone forms one side of Guyon's canal.
Arthritis in the wrist bones and joints may eventually irritate and compress the ulnar nerve.
This bone is sometimes fractured when golfers club the ground instead of the golf ball and when baseball players are batting.
www.kort.com /hand/handguyon.asp   (1749 words)

  
 Fracture of the hook of the hamate bone Discussion   (Site not responding. Last check: 2007-11-05)
Fracture of the hook of the hamate bone Discussion
Fractures involving the hook of the hamate bone are often difficult to demonstrate with plain Xrays, and additional evaluation and management may be indicated based on clinical suspicion.
Fractures of the hook of the hamate have a nearly 100% nonunion rate with conservative treatment.
www.eatonhand.com /dis/dis021.htm   (175 words)

  
 Sports Network
Oakland, CA (Sports Network) - Oakland outfielder Jose Guillen broke the hamate bone in his left wrist on Sunday, but may attempt to play through the injury.
Guillen suffered the break while striking out in the second inning of Sunday's 6-5 win over Texas, dislodging the hamate bone.
It was originally thought to be a sprain, but X-rays taken on Monday revealed the broken hamate.
www.sportsnetwork.com /?c=contracosta&page=mlb/news/AAN2800094.htm   (180 words)

  
 PGATOUR.com - Golf After 50: Senior golfers' most common injuries, part II
The bone has an extension -- a hook -- that can be broken by a single blow or by repetitive impact to the heel of the hand, something that happens often while playing golf.
That's why a hamate hook fracture is also called "golfer's wrist," even though it also affects tennis, baseball, and hockey players, as well as cyclists.
If you have pain in that area of the wrist and think the hamate bone might be involved, immobilize it, apply ice, and see a doctor.
www.golfweb.com /story/7151794   (697 words)

  
 Bones In The Wrist   (Site not responding. Last check: 2007-11-05)
Femur Metacarpals Metatarsals Ulna Radius Wrist bones (carpals) Lumber vertebrae Humerus...
The carpal bones are the bones of the wrist and together they...
The bones of our skeleton can be divided into four different groups depending on their shape and the work that they do.
www.bodily-injury-claims.co.uk /injuryclaim/bones_in_the_wrist.html   (452 words)

  
 MRI of the carpel tunnell to show key landmarks   (Site not responding. Last check: 2007-11-05)
MR image of the carpal tunnel to show key landmarks, H, hamate bone, Tm, trapezium bone, middle star marks median nerve.
Reference points for landmarks are also shown: P landmarks for measuring nerve position,> landmarks for calculating cross section area of the carpal tunnel.
The best measure was the distance from the nerve (the middle star) to the "hook" of the hamate bone (the right hand star).
www.physiol.ucl.ac.uk /research/greening_j/greening4.html   (76 words)

  
 Chosen One - April 24, 1997   (Site not responding. Last check: 2007-11-05)
Due to a broken hamate bone in his right hand, Gjerde has spent most of the season on the bench.
Gjerde, a third-team preseason All-American, has been forced to spend most of his final campaign as a Wildcat on the bench thanks to a broken hamate bone in his right hand.
It was discovered that the hamate bone in his right hand had snapped.
wildcat.arizona.edu /papers/90/141/17_1_m.html   (885 words)

  
 Wrist and hand module: Bones: Volar/hamulus of hamate   (Site not responding. Last check: 2007-11-05)
Wrist and hand module: Bones: Volar/hamulus of hamate
Lastly, note the volar projection from the hamate bone - its hook (L. hamulus).
The ulnar nerve and artery pass between the pisiform bone and the hamulus of the hamate.
www.dartmouth.edu /~anatomy/wrist-hand/bones/bones5.html   (67 words)

  
 Snelling on the shelf again   (Site not responding. Last check: 2007-11-05)
PEORIA, Ariz. -- Mariners outfielder Chris Snelling suffered a broken hamate bone in his right hand during the first day of batting practice on Thursday and will miss the remainder of Spring Training.
The "hook of hamate" was removed Friday morning.
A Mariners spokesperson said the surgery went well and Snelling, who previously broke the hamate bone which never completely healed, could be sidelined for about six weeks.
www.mlb.com /NASApp/mlb/content/printer_friendly/mlb/y2004/m02/d27/c642127.jsp   (316 words)

  
 Dorlands Medical Dictionary
lis, [TA]  lacrimal hamulus: the hooklike process on the anterior part of the inferolateral border of the lacrimal bone, articulating with the maxilla.
ti, [TA]  hamulus of hamate bone: a hooklike process on the volar surface of the hamate bone, to which numerous structures are attached.
deus, [TA]  pterygoid hamulus: a hooklike process on the inferior extremity of the medial pterygoid plate of the sphenoid bone, around which the tendon of the tensor veli palatini muscle passes.
www.mercksource.com /pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_h_02zPzhtm   (2973 words)

  
 MR imaging of the type II lunate bone: frequency, extent, and associated findings -- Malik et al. 173 (2): 335 -- ...
MR imaging of the type II lunate bone: frequency, extent, and associated findings -- Malik et al.
the hamate bone, which frequently leads to arthritis.
focal hamate chondromalacia and MR imaging evidence of marrow edema were
www.ajronline.org /cgi/content/abstract/173/2/335   (311 words)

  
 hook of hamate bone - definition from Biology-Online.org   (Site not responding. Last check: 2007-11-05)
hook of hamate bone - definition from Biology-Online.org
Dictionary > H > hook of hamate bone
A hooklike process on the distal and medial part of the palmar surface of the hamate bone.
www.biology-online.org /dictionary/hook_of_hamate_bone   (33 words)

  
 Imaging Findings in Ulnar-sided Wrist Impaction Syndromes -- Cerezal et al. 22 (1): 105 Figure 19C -- RadioGraphics
  Hamatolunate impaction syndrome in a 36-year-old man. (a) Posteroanterior radiograph of the wrist in full ulnar deviation shows abutment of the hamate and lunate bones (arrow).
(b, c) Coronal T1-weighted (500/15) (b) and fat-suppressed T2-weighted (3,000/50) (c) MR images show type II lunate bone with adjacent marrow edema of the hamate bone (arrow) and severe chondromalacia of the hamate bone, a finding that was proved at arthroscopy.
Note the linear defect in the proximal aspect of the lunate bone (arrowhead), a finding that suggests a vascular groove.
radiographics.rsnajnls.org /cgi/content/full/22/1/105/F19C   (113 words)

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