Hip Dysplasia in Dogs

Pictured: Older dog wearing a hip brace

 

Dog Hip Dysplasia Overview

Hip dysplasia is a hereditary disorder that occurs when your dog’s hip joints don’t grow properly. This abnormal development can cause pain, arthritis and in some cases crippling lameness. In other words, if your dog’s hip dysplasia is severe he or she will be unable to walk or run.

Clinically speaking, hip dysplasia occurs when your dog has abnormal looseness between the ball (femoral head) and socket (acetabulum). When the ball and socket don’t fit snugly, they tend to rattle around, eventually deforming the bone and causing arthritis and pain.

Hip dysplasia is most commonly found in large breed dogs but can affect even the smallest breeds as well.

 

Facts: Hip Dysplasia in Dogs

  • Canine hip dysplasia occurs in 50% or more of some of the larger breeds of dogs
  • From 1974 through December 2010 over 72% of English Bulldogs examined by OFA were dysplastic
  • Hip replacement surgery costs $5,000 but can be far more depending on the type of breed and where you live
  • There are 25 dog breeds with a 1 in 4 chance of being dysplastic

Source: Baker Institute for Animal Health

 

Signs and Symptoms

The signs and symptoms of hip dysplasia in dogs are usually mild and subtle because the disease worsens over time. Early signs include mild to moderate lameness that does not seem to improve. You may also notice your dog favoring one side or the other to compensate for the pain in one of the hip joints. Other symptoms include stiffness, difficult moving, lethargy, irritability or licking of the hip area.

 

Clinical Testing and Diagnosis

Pictured: Young dog getting examined

 

If you suspect your dog may be suffering from hip dysplasia your veterinarian can run tests for you. The most common way to diagnose hip dysplasia is to take x-rays. Your veterinarian will also perform hip scores, which help evaluate your dog’s hip flexibility and pain levels in that region. The Orthopedic Foundation for Animals has created a hip grading system to assist veterinarians on the diagnosis and treatment of hip dysplasia in dogs.

There are seven classifications defined by the OFA. Three classifications are non-dysplastic, one is right in the middle, and the last three are dysplastic (hip dysplasia is the diagnosis).

 

Excellent – This classification is the best rating a dog can get regarding hip structure and health.

Good – Slightly less than excellent but still a very healthy ball and join structure in the hips.

Fair – There are minor irregularities in the hip joints. Could be normal for some breeds but a yellow flag for others.

Borderline – This is the line between your dog being diagnosed as dysplastic or not. Typically 50% of the dogs classified as borderline do not see deterioration in the hip.

Mild – The ball is partially out of the hip socket, which is creating some joint space. Your vet will keep an eye on deterioration over time.

Moderate – There is a significant amount of subluxation and the ball is only barely sitting in the socket. Left untreated the arthritis in the hip will deteriorate over time.

Severe – This is where the ball is partly or completely out of the socket. Typically there are significant amounts of cartilage build up and arthritis around the joint.

 

PennHIPP Program

PennHIPP is a not-for-profit program wholly owned and operated by the University of Pennsylvania. Their mission is to develop and apply evidence-based technology to direct appropriate breeding strategies aimed at reducing in frequency and severity the osteoarthritis of canine hip dysplasia.

PennHIP incorporates a new method for evaluating the integrity of the canine hip. It is accurate in puppies as young as 16 weeks of age. It has great potential to lower the frequency of CHD when used as a selection criterion.

 

Dog Hip Dysplasia Treatment

Once your dog has been diagnosed with hip dysplasia the changes are irreversible. They key to successful treatment is to help your dog manage pain and reduce the stress factors. Depending on the classification and age of your dog, treatments for dog hip dysplasia can range from simple weight reduction and exercise to full hip replacement surgery.

 

Mild

If your dog suffers from mild hip dysplasia then weight reduction and exercise management may be enough to reduce pain and allow your dog to live a normal life. Some canines might also benefit from a dog hip brace to help alleviate the pain associated with the miss formed joint. For milder cases of hip dysplasia, medications range from $20 to $30 per month.

 

Moderate

Dogs that are classified as moderate dysplastic will also benefit from weight reduction and exercise management, however they may need physical therapy or alternative therapies to manage the pain and other symptoms. There are also anti-inflammatory medications that can help manage pain. Some medications are oral and others are injected into the hip region on a regular basis by a licensed veterinary professional. Physical therapy can range from $100 to over $1,000 depending on the number of sessions needed and the type of treatment required.

 

Severe

In cases of severe hip dysplasia your dog may need surgical treatment. Sometime corrective surgery is enough to reduce the pain and discomfort. In these situations a surgeon will shave the cartilage and bone matter to provide a more functional ball and socket formation in the hip. In other cases a full hip replacement surgery may be needed. Depending on your dog’s size and where you live, the average cost for hip replacement surgery is between $4,000 to $6,000 per hip.

 

Cost to Treat: $4,000 to $6,000 per hip

 

Dog Hip Dysplasia Incidence Rates by Breed

The Orthopedic Foundation for Animals was founded to promote the health and welfare of companion animals through a reduction in the incidence of genetic disease.

Breed% Dysplastic# of Evaluations
English Bulldog72.0%636
Pug68.7%565
Dogue De Bordeaux56.7%499
Otterhound49.6%425
Neapolitan Mastiff47.5%162
Saint Bernard46.7%2,184
Boerboel45.2%166
Clumber Spaniel43.1%965
Black Russian Terrier43.0%623
Sussex Spaniel40.4%285
Cane Corso38.3%1,007
Basset Hound37.2%207
Argentine Dogo37.1%221
Perro De Presa Canaro34.6%205
Norfolk Terrier33.7%315
American Bulldog32.9%1,863
Boykin Spaniel31.5%3,466
Fila30.0%600
Glen of Imaal Terrier29.5%190
Lagotto28.9%201
French Bulldog28.6%1,316
Spanish Water Dog27.9%136
American Staffordshire Terrier25.9%3,120
Bloodhound25.4%2,941
Newfoundland25.0%15,853
American Bull Terrier24.1%806
Bullmastiff24.0%5,803
Catahoula Leopard21.2%604
English Shepherd21.1%413
Berger Picard20.8%149
Cardigan Welsh Corgi20.8%2,165
Rottweiler20.2%95,279
Chesapeake Bay Retriever20.0%13,230
Shih Tzu19.7%641
Golden Retriever19.4%139,411
Mastiff19.3%11,290
Norwegian Elkhund19.3%3,940
Chow Chow19.1%5,439
German Shepherd19.0%110,075
Gordon Setter18.8%6,266
Pembroke Welsh Corgi18.8%11,656
Old English Sheepdog18.2%10,932
Mixed Breed Dog17.9%1,779
Field Spaniel17.9%1,105
Epagneul Breton17.7%175
Icelandic Sheepdog17.7%356
Kuvasz17.7%1,799
Beagle17.7%954
Greater Swiss Mountain Dog17.7%2,932
Giant Schnauzer17.5%4,498
Chinook17.4%728
Havana Silk Dog17.2%203
Staffordshire Bull Terrier17.1%638
Affenpinscher16.8%334
Pyrenian Shepherd16.6%151
Shiloh Shepherd16.6%897
Barbet16.4%110
English Setter15.8%10,834
Bernese Mountain Dog15.7%19,099
Welsh Terrier15.7%121
Spinone Italiano15.6%1,295
Entlebucher15.6%340
Curly-Coated Retriever15.5%1,199
Polish Lowland Terrier15.5%536
Australian Cattle Dog15.3%3,816
Bouvier Des Flandres15.0%8,433
Harrier14.9%336
Tibetan Mastiff14.9%1,016
Brittany14.3%18,974
Black and Tan Coonhound14.1%721
Briard13.9%2,541
Leonberger13.9%1,880
Labradoodle13.9%359
Norwich Terrier13.4%982
Chinese Shar-Pei13.2%9,727
Beauceron12.8%447
Akita Dog12.8%16,602
English Springer Spaniel12.7%15,534
Smooth Fox Terrier12.6%381
Cavalier King Charles Spaniel12.6%6,936
Portuguese Water Dog12.5%8,479
Komondor12.3%995
Great Dane12.1%13,328
Boston Terrier12.0%241
Pomeranian12.0%108
Irish Setter11.8%11,577
Poodle Dog11.7%24,675
Pudelpointer11.7%463
Irish Water Spaniel11.6%1,394
Labrador Retriever11.6%239,208
Airedale Terrier11.3%6,155
Alaskan Malamute11.3%14,211
Welsh Springer Spaniel11.3%2,137
West Highland White Terrier11.2%374
Boxer11.2%5,676
Petit Basset Griffon Vendeen11.1%759
Finnish Lapphund10.9%211
Samoyed10.8%16,529
Tibetan Spaniel10.6%348
Border Collie10.5%12,101
Puli10.2%1,781
Wirehaired Vizsla10.1%139
Anatolian Shepherd10.1%1,970
Norwegian Buhund10.0%211
Havanese9.9%3,736
Swedish Vallhund9.9%273
Akbash Dog9.5%549
American Eskimo Dog9.5%1,058
Dutch Shepherd9.1%264
Great Pyrenees9.0%6,109
German Wirehaired Pointer8.9%4,276
Cairn Terrier8.8%114
Coton De Tulear8.7%803
Australian Kelpie8.4%131
Weimaraner8.4%12,430
Standard Schnauzer8.4%4,399
Wirehaired Pointing Griffon8.0%2,208
American Water Spaniel7.7%781
Dachshund7.7%104
Pointer7.7%1,681
Miniature Australian Shepherd7.6%1,840
French Spaniel7.4%190
Small Munsterlander7.3%178
Bichon Frise7.1%3,710
Vizsla6.8%14,508
Schipperke6.7%479
Yorkshire Terrier6.6%106
Pitbull Terrier6.5%108
Nova Scotia Duck Tolling Retriever6.5%2,123
Cocker Spaniel6.4%13,552
Lhasa Apso6.4%818
Keeshond6.3%4,904
Doberman Pinscher6.1%16,176
Bearded Collie5.9%4,599
Australian Shepherd5.8%34,033
Afghan Hound5.7%6,911
Finnish Spitz5.7%333
English Cocker Spaniel5.6%7,192
Shiba Inu5.6%3,285
Tibetan Terrier5.5%4,145
Kerry Blue Terrier5.5%1,607
Hovawart5.5%164
Belgian Shepherd Malinois5.3%2,929
North American Shepherd5.1%336
Soft Coated Wheaten Terrier5.0%6,270
Rhodesian Ridgeback4.7%11,825
Irish Red and White Terrier4.5%292
Shetland Sheepdog4.5%20,927
Irish Wolfhound4.5%1,917
Dalmatian4.3%3,638
Flat-Coated Retriever4.2%5,796
German Shorthaired Pointer4.0%16,504
Border Terrier3.7%2,827
Toy Australian Shepherd3.6%138
Parson Russell Terrier3.5%115
Eurasier3.4%118
Belgian Tervuren3.4%6,154
Basenji3.4%2,737
Belgian Sheepdog2.9%4,176
Rat Terrier2.9%523
Collie Dog2.7%3,062
Australian Terrier2.6%193
Pharaoh Hound2.6%503
Greyhound2.5%360
Ibizan Hound2.3%393
Canaan2.2%465
Siberian Husky2.0%17,996
German Pinscher1.9%424
Borzoi1.8%870
Saluki1.5%265
Whippet1.1%180
Italian Greyhound0.0%263

 

The OFA is guided by the following four specific objectives; to collate and disseminate information concerning orthopedic and genetic diseases of animals, to advise, encourage and establish control programs to lower the incidence of orthopedic and genetic diseases, to encourage and finance research in orthopedic and genetic disease in animals, to receive funds and make grants to carry out these objectives.

 

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