Carpus

OBJECTIVES: 1) To describe a radiographic method for determination of joint orientation lines and anatomical joint angles in orthogonal planes of feline radii; 2) to establish a range of normal radial joint orientation angles and anatomical axes in a feline population; and 3) to assess the repeatability and reliability of this methodology.

Category: Biologics - Carpus - Elbow - Imaging
Authors: Bristow PC, Meeson RL, Thorne RM, Butterworth SJ, Rutherford S, Renwick AI, Wustefeld-Janssens B, Witte PG, Woods S, Parsons KJ, Keeley BJ, Owen MR, Li A, Arthurs GI.
Journal: Veterinary Surgery

To describe and compare a large population of dogs that had pancarpal arthrodesis (PCA) using either a hybrid dynamic compression plate (HDCP) or a CastLess Plate (CLP).

Authors: Greeff DR1, Owen M2, Bush M2.
Journal: J Feline Med Surg

This report describes the successful management of a carpal hyperextension injury in a cat using combined temporary transarticular internal and external skeletal fixation, without performing an arthrodesis. To our knowledge, there have been no previous reports of management of feline carpal hyperextension injuries in this fashion.

Authors: Goodrich ZJ1, Norby B, Eichelberger BM, Friedeck WO, Callis HN, Hulse DA, Kerwin SC, Fox DB, Saunders WB.
Journal: Vet Surg

OBJECTIVE:

To report thoracic limb alignment values in healthy dogs; to determine if limb alignment values are significantly different when obtained from standing versus recumbent radiographic projections.

STUDY DESIGN:

Prospective cross-sectional study.

ANIMALS:

Labrador Retrievers (n = 45) >15 months of age.

METHODS:

Authors: Tomlinson JE1, Manfredi JM.
Journal: JAVMA

Objective-To determine whether carpal brace application is a viable treatment for dogs with unilateral carpal ligament instability. Design-Retrospective case series. Animals-14 client-owned athletic dogs. Procedures-Medical records were reviewed to identify dogs treated with abrace for unilateral carpal valgus or varus instability between August 2008 and August 2011. Treatment included passive motion and isometric strengthening exercises during brace application. Results-Of the 14 dogs, 11 were considered to have returned to normal function; 11 of 12 dogs returned to agility competition.

Authors: Petazzoni M, Nicetto T.
Journal: VCOT

This report describes the treatment of traumatic carpal hyperextension in a giant breed dog by pancarpal arthrodesis using a custom-made Fixin locking plate, created with the aid of a three-dimensional plastic model of the bones of the antebrachium produced by rapid prototyping technology. A three-year-old 104 kg male Mastiff dog was admitted for treatment of carpal hyperextension injury. After diagnosis of carpal instability, surgery was recommended. Computed tomography images were used to create a life-size three-dimensional plastic model of the forelimb.

Authors: Harris KP, Langley-Hobbs SJ.
Journal: JAVMA

Case Description-A 6-year-old neutered female mixed-breed dog was evaluated because of a 6-week history of left forelimb lameness that varied in severity. Clinical Findings-Radiography revealed expansile and lytic changes of the left accessory carpal bone (ACB). Results of histologic evaluation of ACB core biopsy specimens indicated areas of bone necrosis. The entire left ACB was excised and submitted for histologic evaluation; results confirmed a diagnosis of idiopathic ischemic necrosis.

Category: Carpus
Authors: Bitton E, Joseph R, Portman L, Segev G, Meiner Y, Shipov A, Milgram J.
Journal: Vet Surg

OBJECTIVE:
To describe the direction and magnitude of the rotation of the radius relative to the ulna during extension of the carpus and to describe the effect of carpal extension on internal and external rotation of the radius relative to the ulna.
STUDY DESIGN:
In vitro experiment.
ANIMALS:
Cadaveric canine thoracic limbs (n = 11).
METHODS:

Authors: Vedrine B.
Journal: Can Vet J

A 4-year-old male Labrador retriever dog was evaluated for acute lameness without weight-bearing in the right forelimb after an 8-meter fall. Radiographs revealed a comminuted fracture of the ulnar carpal bone that required removal of bone fragments. This appears to be the first report of such a condition.

Authors: Nakladal B, Vom Hagen F, Brunnberg M, Gross M, Nietz H, Brunnberg L.
Journal: VCOT

Objective: Injuries of the carpal joint are rare in cats. The most common cause is a fall from a height, known as 'high-rise syndrome'. So far, only limited data about carpal joint injuries (CJI) in cats are available. The aim of this study was to investigate the epidemiology, aetiology, location, and type of CJI in cats. Methods: Case records of cats diagnosed with CJI between 1998 and 2010 were retrospectively analysed. Data concerning signalment, history and type of CJI, accompanying systemic injuries and further orthopaedic injuries were collected.