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Quittor (Coronary sinus) |  |
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| Quittor is a chronic, purulent inflammation of the cartilage of the third phalanx characterized by necrosis of the cartilage and one or more sinus tracts extending from the diseased cartilage through the skin in the coronary region. It is seldom encountered today but used to be common in working draft horses. Quittor follows injury to the coronet or pastern over the region of the cartilage, by means of which infection is introduced into the deep tissues to form a subcoronary abscess, or it may follow a penetrating wound through the sole. The first sign is an inflammatory swelling over the region of the alar cartilage, which is followed by abscessation and sinus formation. During the acute stage, lameness occurs. |
| Surgery to remove the diseased tissue and cartilage is usually successful. Local or parenteral therapy (or both) without surgery is likely to fail. In the absence of any therapy, poor drainage, cartilage necrosis, and recurrent abscessation lead to chronic lameness and extension to deep structures. If damage is extensive and the distal interphalangeal joint has been invaded, the prognosis is unfavorable. |
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| See Also |
| Introduction |
| The Lameness Examination |
| Overview |
| Imaging Techniques |
| Overview |
| Anatomic Imaging Techniques |
| Physiologic Imaging Techniques |
| Arthroscopy |
| Regional Analgesia |
| Disorders of the Foot |
| Bone Cyst in Pedal Bone |
| Bruised Sole and Corns |
| Canker |
| Contracted Heels |
| Fracture of Navicular Bone |
| Fracture of Pedal Bone |
| Keratoma |
| Laminitis |
| Navicular Disease |
| Pedal Osteitis |
| Puncture Wounds of the Foot |
| Pyramidal Disease |
| Sandcrack |
| Scratches |
| Seedy Toe |
| Sheared Heels |
| Sidebone |
| Thrush |
| Disorders of the Fetlock and Pastern |
| Fracture of Phalanges and Proximal Sesamoids |
| Osselets |
| Ringbone |
| Sesamoiditis |
| Villonodular Synovitis |
| Windgalls |
| Disorders of the Carpus and Metacarpus |
| Overview |
| Bucked Shins |
| Degenerative Subchondral Lesions of the Carpal Bones |
| Desmitis or Sprain of the Inferior Check Ligament |
| Fracture of the Carpal Bones |
| Intra-articular Osteochondral Chip Fragments of the Carpus |
| Carpal Slab Fractures |
| Accessory Carpal Bone Fractures |
| Fractures of the Small Metacarpal and Metatarsal (Splint) Bones |
| Fracture of the Third Metacarpal (Cannon) Bone |
| Hygroma |
| Osteoarthritis (Degenerative Joint Disease) |
| Osteochondrosis |
| Osteochondroma of the Distal Radius (Supracarpal Exostosis) |
| Rupture of the Common Digital Extensor Tendon |
| Splints |
| Subchondral Cysts and Septic Arthritis |
| Suspensory Desmitis |
| Synovial Hernia and Ganglion and Synovial Fistulae |
| Tearing of the Medial Palmar Intercarpal Ligament |
| Tenosynovitis of the Tendon Sheaths Associated with the Carpus |
| Traumatic Synovitis and Capsulitis |
| Disorders of the Shoulder and Elbow |
| Arthritis of the Shoulder Joint |
| Bicipital Bursitis |
| Fractures of the Elbow |
| Fractures of the Shoulder |
| Sweeney |
| Disorders of the Tarsus |
| Overview |
| Bog Spavin |
| Bone Spavin |
| Curb |
| Displacement of Superficial Flexor Tendon from the Point of the Hock |
| Fracture of the TArsus |
| Hindlimb Tendon Ruptures |
| Rupture of the Peroneus Tertius Muscle |
| Stringhalt |
| Thoroughpin |
| Disorders of the Stifle |
| Fracture of the Stifle |
| Gonitis |
| Patellar Luxation |
| Subchondral Bone Cyst |
| Disorders of the Hip |
| Coxitis |
| Dislocation of the Hip |
| Pelvic Fracture |
| Trochanteric Bursitis |
| Disorders of the Back |
| Fractures |
| Muscle and Ligament Strain |
| Ossifying Spondylosis |
| Overriding of the Dorsal Spinous Processes |
| Sacroiliac Injury |
| Developmental Orthopedic Disease |
| Overview |
| Osteochondrosis |
| Physitis |
| Flexion Deformities |
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