Nonseptic osteitis of the distal phalanx and its palmar processes

Dyson, Sue

doi:10.1111/j.2042-3292.2011.00261.x

Cited by 4 publications

(4 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Excellent agreement between radiographic and scintigraphic grades of ossification of the ungular cartilages has been previously identified, and all cartilages with a fracture had corresponding increased radiopharmaceutical uptake . Injuries to these structures are typically traumatic in origin and are associated with osseous remodeling . Increased deposition of radiopharmaceutical occurs at sites undergoing active modeling or remodeling, in association with osteoblastic activity .…”

Section: Discussionmentioning

confidence: 80%

“…11 Injuries to these structures are typically traumatic in origin and are associated with osseous remodeling. 2,8,9,12,15,16 Increased deposition of radiopharmaceutical occurs at sites undergoing active modeling or remodeling, in association with osteoblastic activity. 17 When ungular cartilages were analyzed alone, the agreement was stronger than when combined with chondral ligaments.…”

Section: Distal Phalanx and Ungular Cartilages And Chondral Ligamentsmentioning

confidence: 99%

“…There is limited information on patterns of radiopharmaceutical uptake in the feet of horses without lameness. 2 Radiopharmaceutical uptake has been described in association with abnormalities of the navicular bone, [3][4][5] collateral ligaments of the distal interphalangeal joint, 3,4,6,7 deep digital flexor tendon, 3,4 distal phalanx, 8,9 and ungular cartilages. [10][11][12] There was substantial agreement between increased radiopharmaceutical uptake anywhere within the foot and a final diagnosis of foot pain, with moderate sensitivity and high specificity.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of the diagnostic accuracy of skeletal scintigraphy for the causes of front foot pain determined by magnetic resonance imaging

Quiney

Ireland

Dyson

2018

Vet Radiology Ultrasound

View full text Add to dashboard Cite

There is good correlation between increased radiopharmaceutical uptake anywhere in the feet of sports or leisure horses and the presence of foot pain. However, low sensitivity of scintigraphy for identifying lesions contributing to foot pain as determined by magnetic resonance imaging (MRI) has been reported. The aim of this retrospective, cross-sectional, analytical study was to assess the accuracy of scintigraphy for identifying the cause(s) of foot pain, using MRI as the reference standard. Sports and leisure horses that underwent both skeletal scintigraphy and MRI of the front feet between March 2008 and December 2014 and for which a definitive diagnosis of the cause(s) of front foot pain was reached were included (121 feet of 70 horses). Imaging studies were evaluated retrospectively, blindly. Agreements between scintigraphic localization of increased radiopharmaceutical uptake and subjective categorization of lesions with MRI diagnosis were assessed using Kappa statistics (κ). Measures of diagnostic accuracy were calculated. Sensitivity of increased radiopharmaceutical uptake varied among regions (31.8-76.2%) but specificity was at least high for all (84.6-100%). Agreements between both scintigraphy measures and MRI diagnosis were substantial for the distal phalanx (palmar processes and body) (κ = 0.77 and κ = 0.74, respectively), and ungular cartilages and chondral ligaments (κ = 0.62, for both). When all regions were combined, agreements of increased radiopharmaceutical uptake (κ = 0.49) and relevance categorization (κ = 0.45) with MRI diagnosis were moderate. In conclusion, skeletal scintigraphy does not meet the minimum reliability level for a diagnostic test, but is reliable for identification of osseous trauma to the distal phalanx and ungular cartilages.

show abstract

Section: Discussionmentioning

confidence: 80%

Section: Distal Phalanx and Ungular Cartilages And Chondral Ligamentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of the diagnostic accuracy of skeletal scintigraphy for the causes of front foot pain determined by magnetic resonance imaging

Quiney

Ireland

Dyson

2018

Vet Radiology Ultrasound

View full text Add to dashboard Cite

show abstract

“…These fractures occur primarily in the forelimbs and most frequently occur between the quarters and the toe. They are often seen in horses with thin soles and other signs of pedal bone inflammation such as marginal resorption; they can also be caused by trauma or be seen secondary to laminitis or other foot pathology (Dyson 2011). Widening of the vascular channels and irregular solar margins of the pedal bone are thought to predispose horses to type VI fractures.…”

Section: Treatmentmentioning

confidence: 99%

Pedal bone fractures

Kidd

2011

Equine Veterinary Education

View full text Add to dashboard Cite

Summary Fractures of the pedal bone are usually the result of direct trauma, and are relatively commonly encountered in equine practice. Either front or hind feet may be affected. Seven distinct fracture types are recognised. Type I fractures involve the palmar/plantar process and do not enter the distal interphalangeal (DIP) joint. Type II fractures are oblique or parasagittal fractures that are articular but are not on the midline. Type III fractures are midline articular fractures that bisect the pedal bone into 2 equal halves. Type IV fractures involve the extensor (pyramidal) process of the pedal bone. Type V fractures are comminuted and split the pedal bone into multiple fragments. Type VI fractures are solar margin fractures. Type VII fractures are exclusive to foals and are also fractures of the solar margin. In most cases the onset of clinical signs is acute. The diagnosis is usually achieved by radiography, although computed tomography or magnetic resonance imaging can be helpful in some cases. Treatment options include surgical and nonsurgical therapies. The prognosis for articular fractures (Types II and III) is worse than for nonarticular fractures (Types I, IV, VI and VII) because of the likelihood of osteoarthritis within the DIP joint. Nonarticular fractures carry a good prognosis if a long enough convalescence is undertaken. Comminuted fractures (Type V) carry a poor, but not hopeless, prognosis.

show abstract

Musculoskeletal Scintigraphy of the Equine Athlete

Dyson

2014

Seminars in Nuclear Medicine

View full text Add to dashboard Cite

Nonseptic osteitis of the distal phalanx and its palmar processes

Cited by 4 publications

References 25 publications

Evaluation of the diagnostic accuracy of skeletal scintigraphy for the causes of front foot pain determined by magnetic resonance imaging

Evaluation of the diagnostic accuracy of skeletal scintigraphy for the causes of front foot pain determined by magnetic resonance imaging

Pedal bone fractures

Musculoskeletal Scintigraphy of the Equine Athlete

Contact Info

Product

Resources

About