Onychectomy 1491754 226075419 2008-07-16T18:44:24Z Rror 6252166 Reverted edits by [[Special:Contributions/205.250.198.220|205.250.198.220]] to last version by ClueBot (using [[WP:HG|Huggle]]) [[Image:IMG 4146.JPG|thumb|175px|Close-up of a declawed paw.]] '''Onychectomy''' is an operation to surgically remove the [[claws]], most often of a household [[cat]], though occasionally of other animals such as [[circus]] [[lion]]s or dancing [[bear]]s. This process involves [[amputation|amputating]] all or part of the [[Distal phalanges|distal phalanx]], or end bone, of the animal's toes, and is popularly known as '''declawing'''. Although common in North America<ref name=Patronek>{{cite journal |author=Patronek GJ |title=Assessment of claims of short- and long-term complications associated with onychectomy in cats |journal=J. Am. Vet. Med. Assoc. |volume=219 |issue=7 |pages=932–7 |year=2001 |pmid=11601788 |doi=10.2460/javma.2001.219.932}}</ref>, declawing is rarely practiced outside North America and is considered an act of [[animal cruelty]] in certain other regions (see "Legal Status" below). == Indications == === Medical === The amputation of the distal phalanx is indicated in case of chronic inflammatory processes, tumours, persistent and severe infections and gangrene that are limited to the distal phalanx. The procedure is usually limited to the affected claw, leaving the healthy claws intact if any are healthy. === Non-Medical === In North America, declawing is commonly performed on housecats to prevent damage to household possessions by scratching and to prevent scratching of people.<ref name=Patronek/> Although no precise figures are available, peer reviewed veterinary journal articles estimate that approximately 25% of domestic cats in North America have been declawed.<ref name=Patronek/> === Methods === Declawing essentially consists of amputation of the third phalanx of the paw digits. Medical declawing is usually limited to the affected digit, whereas non-medical declawing is usually performed on all digits of the front paws, although some veterinarians will also perform declawing of the hind paws for non-medical reasons. Despite its prevalence in North America, no standard practices exist regarding the surgical techniques or cutting tools used, the administration of post-operative analgesics or other follow-up care, or the optimal age or other attributes of cats undergoing the procedure.<ref name=Patronek/> ==Recovery, health and behavioral effects== {{Expand|date=March 2008}} In a survey of 276 cat owners, 34% reported post-surgical discomfort in their cats while 78% reported primarily tenderness.<ref>Landsberg GM [http://www.vin.com/VINDBPub/SearchPB/Proceedings/PR05000/PR00016.htm Cat owners’ attitudes toward declawing.] Anthrozoos 1991;4:192-197.</ref> Recovery time took from three days to two weeks. One cat(0.4%) had difficulty walking even after four months and another developed a soiling issue. Increased biting strength or frequency was reported in 10 cats(4%) but overall, 96% of owners were satisfied with the surgery. A study of two different surgical techniques found that 16% of those who underwent joint amputation developed lameness while only 5% who underwent bone amputation did.<ref>Martinez et al., 1993 [http://www.vin.com/VINDBPub/SearchPB/Proceedings/PR05000/PR00016.htm Comparing two techniques for onychectomy in cats and two adhesives for wound closure.] Vet Med 1993; 88:516-525.</ref> 22% of the first group and 16% of the second experienced [[dehiscence|reopened wound]]. Although behavior problems such as house soiling (not using the litter box) and biting after declawing has been widely report anecdotally, the [[American Veterinary Medical Association]](AVMA) has stated that there is no scientific evidence to show that declawing leads to behavioral abnormalities.<ref name=JAVMA_Apr03>[http://www.avma.org/issues/policy/animal_welfare/declawing.asp AVMA position statement on the declawing of domestic cats - April 15, 2003<!-- Bot generated title -->]</ref> Cats that have been declawed cannot use their normal kitty litter following the surgery due the risk of the surgical wounds reopening and need to use newspapers instead until their paws completely heal. Some cats do not like having their litter changed like this and may stop using their boxes entirely. == Declawing practices ==<!-- This section is linked from [[Cat]] --> Declawing is uncommon outside North America, and laws governing its practice vary. Many [[Europe]]an countries prohibit or significantly restrict the practice, as do parts of [[Australia]], [[Brazil]], [[Israel]], [[New Zealand]], [[Japan]] and [[Turkey]]. The list below gives an overview of the situation in different parts of the world. ===Australia=== In [[Australia]], legislation concerning [[animal welfare]] is enacted at the state level and is highly inconsistent. There are ongoing efforts to develop a National Animal Welfare Act; in its current state, the [[bill (proposed law)|bill]] would prohibit the declawing of cats except for medical reasons. However, some pro-wildlife campaigners advocate declawing (and possibly defanging) to protect native wildlife from pet cats. ===Europe=== In many European countries the practice is forbidden under the terms of the [[European Convention for the Protection of Pet Animals]]<ref>{{cite web | title=European Convention for the Protection of Pet Animals, Chapter II - Principles for the keeping of pet animals, Article 10(1) | url=http://www.animallaw.info/treaties/itceceets125.htm|accessmonthday=August 22 |accessyear =2005 }}</ref> , unless there is a medical indication for the procedure, or a [[veterinarian]] considers it beneficial to the animal. Some European countries go further, such as [[Finland]], the [[Netherlands]], [[Germany]] and [[Switzerland]]<ref>{{cite web | title=Swiss Federal Act on Animal Protection, 1978, Section 8: Prohibited Practices, §22(g) | url=http://www.animallaw.info/nonus/statutes/stchapa1978.htm | accessmonthday=August 22 | accessyear=2005 }}</ref>, where declawing cats for non-medical reasons is always illegal under their laws against [[cruelty to animals]]. ====United Kingdom==== In the [[United Kingdom]], declawing was outlawed by the [[Animal Welfare Act|Animal Welfare Act 2006]], which explicitly prohibited "interference with the sensitive tissues or bone structure of the animal, otherwise than for the purposes of its medical treatment".<ref>[http://www.opsi.gov.uk/acts/acts2006/ukpga_20060045_en.pdf untitled<!-- Bot generated title -->]</ref> Even before the 2006 Act, however, declawing was extremely uncommon, to the extent that most people had never seen a declawed cat. The procedure was considered cruel by almost all British [[veterinarian|vet]]s, who refused to perform it except on medical grounds. The ''Guide to Professional Conduct'' of the [[Royal College of Veterinary Surgeons]] stated that declawing was "only acceptable where, in the opinion of the veterinary surgeon, injury to the animal is likely to occur during normal activity. It is not acceptable if carried out for the convenience of the owner ... the removal of claws, particularly those which are [[weight bearing]], to preclude damage to furnishings is not acceptable."<ref>[http://www.rcvs.org.uk/Templates/PreviousNext.asp?NodeID=89772&int2ndParentNodeID=89738&int1stParentNodeID=89642 RCVS Online / k. Mutilations report<!-- Bot generated title -->]</ref> ===United States=== Declawing is legal in most US jurisdictions. It is estimated that 25% of owned cats in the United States are declawed (Patronek 2001). Declawing was outlawed in [[West Hollywood]], California, in 2003, the first such ban is the US.<ref>[http://www.cnn.com/2003/US/West/04/08/cat.declawing.ap/ CNN.com - West Hollywood bans cat declawing - Apr. 9, 2003<!-- Bot generated title -->]</ref>. The California Veterinary Medical Association challenged the law in court<ref>[http://www.cvma.net/doc.asp?ID=2801 CVMA - California Veterinary Medical Association - West Hollywood Petition Denial<!-- Bot generated title -->]</ref>. The CVMA maintained held that West Hollywood had overstepped its municipal authority by enacting an ordinance that infringed on licensed professionals’ state-granted rights. It did not directly address declawing as an animal welfare issue. The CVMA intitially prevailed in Superior Court, but in June 2007, the California Court of Appeal overturned the lower court ruling, thus reinstating the law banning declawing in West Hollywood.<ref>[http://sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/06/23/DECLAW.TMP CALIFORNIA / Court says city can ban declawing<!-- Bot generated title -->]</ref>. In 2004, California became the first state in the USA to enact a statewide ban on the declawing of wild and exotic cats. In 2006, the [[United States Department of Agriculture]] enacted a ban on declawing of all wild and exotic animals held by USDA-licensed owners.<ref>http://www.aphis.usda.gov/ac/publications/declaw_tooth.pdf </ref> In April 2007, the city of [[Norfolk, Virginia]] outlawed declawing.<ref>[http://www.wtkr.com/Global/story.asp?S=6427984&nav=ZolHbyvj WTKR NewsChannel 3: News, Weather and Traffic in Hampton Roads and North Carolina | Norfolk Bans De-Clawing Of Cats<!-- Bot generated title -->]</ref> ====Ethical viewpoints on declawing in the USA==== Although widely practiced, declawing is ethically controversial within the American veterinary community.<ref name=Patronek/> Many American veterinarians are critical of the procedure and some refuse to perform it<ref>[http://www.declaw.com/list.asp Veterinarians who do not declaw<!-- Bot generated title -->]</ref>. The two leading national animal protection organizations in the US, the Humane Society of the United States and the American Society of the Prevention of Cruelty to Animals, strongly discourage or condemn the procedure.<ref>[http://www.pawproject.com/html/faqs.asp FAQs on Cat Declawing, Declaw Surgery and Feline Scratching Behavior<!-- Bot generated title -->]</ref> The Humane Society of the United States and other animal advocacy groups have supported legislation banning or restricting declawing.<ref>[http://www.pawproject.com/html/acknow.asp Acknowledgements<!-- Bot generated title -->]</ref> Major opposition to attempts to ban or restrict declawing has come from veterinary trade organizations, such as the California Veterinary Medical Association. The AVMA considers declawing acceptable under certain circumstances but states that it "should be considered only after attempts have been made to prevent the cat from using its claws destructively or when its clawing presents a zoonotic risk for its owner(s)."<ref name=JAVMA_Apr03/> ==Alternatives to declawing== ===Surgical=== [[Tendonectomy]] involves cutting the deep digital flexor tendon of each claw, resulting in the cat being unable to move its distal phalanges. Without the ability to expose its claws, the cat is unable to wear down or groom its claws. For this reason, the cat subsequently requires a lifetime of regular nail clippings to prevent its claws from growing into its paw pads. A 1998 study published in the Journal of the American Veterinary Medical Association comparing cats undergoing onychectomy to cats undergoing tendonectomy found that, although the cats undergoing tendonectomy appeared to suffer less pain immediately post-operatively, there was no significant difference in postoperative lameness, bleeding, or infection between the two groups.<ref>{{cite journal |author=Jankowski AJ, Brown DC, Duval J, ''et al'' |title=Comparison of effects of elective tenectomy or onychectomy in cats |journal=J. Am. Vet. Med. Assoc. |volume=213 |issue=3 |pages=370–3 |year=1998 |pmid=9702225 |doi=}}</ref> The American Veterinary Medical Association and the Canadian Veterinary Medical Association explicitly do not recommend this surgery as an alternative to declawing<ref name=JAVMA_Apr03> <ref>[http://canadianveterinarians.net/ShowText.aspx?ResourceID=28 Canadian Veterinary Medical Association<!-- Bot generated title -->]</ref>. ===Non-surgical=== One popular, non-surgical alternative to declawing available through veterinarians is the application of vinyl nail caps (marketed in the US under brand names such as Soft Paws and Soft Claws) that are affixed to the claws with nontoxic glue, requiring periodic replacement when the cat sheds its claw sheaths (usually every four to six weeks, depending on the cat's scratching habits). Other alternatives include regular nail trimming, directing scratching behavior to [[scratching post]]s, deterrence with [[water pistol]]s and applying aluminum foil, double sided tape, citrus oils{{Fact|date=April 2008}} or [[cat pheromone]] products to commonly scratched surfaces. ==See also== *[[Veterinary medicine]] ==References== {{reflist}} ==External links== *[http://www.vin.com/VINDBPub/SearchPB/Proceedings/PR05000/PR00016.htm Studies Pertaining to Feline Onychectomy] A summary of various studies and surveys *[http://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=568 ''Declawing and Its Alternatives''] from The Pet Health Library *[http://www.hsus.org/web_file/PDF/hsp/SOA_3-2005_Chap3.pdf "Indoor Cats, Scratching, and the Debate over Declawing: When Normal Pet Behavior Becomes a Problem."] from [http://www.hsus.org/press_and_publications/humane_bookshelf/state_of_animals_iii_2005.html The State of the Animals III: 2005] Humane Society Press. *[http://www.pawproject.com/html The Paw Project] Non-profit anti-declawing lobby group *[http://www.declawing.com/htmls/declawing.htm Declawing: What you need to know] anti-declawing site {{Cat nav}} [[Category:Cat health]] [[Category:Animal welfare]] [[fr:Onyxectomie]] [[zh:除爪手術]]