Lag screw and cancellous bone graft fixation of transverse proximal sesamoid bone fractures in horses: 25 cases (1983-1989).
Abstract: Case records of 25 horses with transverse fractures of the proximal sesamoid bone were reviewed to evaluate the success of treatment. All fractures were repaired by use of lag screw fixation and an autogenous cancellous bone graft because the fracture fragments were considered too large for surgical removal and reconstruction of the suspensory apparatus was necessary. Radiography was performed in all cases, and the fractures were classified into 3 types: (1) proximal midbody fractures, which included all fractures in the proximal aspect of the sesamoid bone that resulted in fragments involving greater than one third but less than one half of the total mass of the sesamoid bone; (2) midbody fractures that divided the bone into 2 equal portions; and (3) distal midbody fractures, which included transverse fractures in the distal aspect of the sesamoid bone that resulted in fragments involving greater than one third but less than one half of the total mass of the sesamoid bone. Of these cases, race records were obtained for 9 Standardbreds and 5 Thoroughbreds. Postoperative performance criteria evaluated were the ability to train and start 1 race, ability to maintain preinjury class of racing, earnings per start, and the number of starts following surgery. In Thoroughbreds, fractures occurred most commonly in the right forelimb; in Standardbreds, the left hind limb was most commonly involved. The midbody fracture was the most common type in both breeds, and the distribution of fracture location within the sesamoid bone was similar for both breeds.(ABSTRACT TRUNCATED AT 250 WORDS)
Publication Date: 1991-09-01 PubMed ID: 1787121
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- Journal Article
Summary
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The research article is about a study conducted to evaluate the effectiveness of a treatment method involving lag screw fixation and cancellous bone graft for horses with transverse fractures of the proximal sesamoid bone.
Research Method
- The researchers reviewed case records of 25 horses which had transverse fractures of the proximal sesamoid bone.
- All of these fractures were treated using lag screw fixation and an autogenous cancellous bone graft.
- This method was chosen because the fracture fragments were too large for surgical removal and there was a need for reconstruction of the suspensory apparatus.
- For each case, radiography was performed and the fractures were classified into three types based on the location and size of the fragments.
Classification of Fractures
- Proximal midbody fractures: fractures in the proximal aspect of the sesamoid bone with fragments involving more than one third but less than one half of the total mass of the bone.
- Midbody fractures: fractures that divide the sesamoid bone into two equal portions.
- Distal midbody fractures: transverse fractures in the distal aspect of the sesamoid bone with fragments involving more than one third but less than one half of the total mass of the bone.
Race Records and Performance Criteria
- Race records were obtained for selected cases – 9 Standardbreds and 5 Thoroughbreds.
- The postoperative performance of the horses was evaluated based on several criteria: the ability to train and start 1 race, maintenance of pre-injury racing class, earnings per start, and the number of starts following surgery.
Common Fracture Occurrences
- The researchers found that fractures occurred most commonly in the right forelimb of Thoroughbreds and the left hind limb of Standardbreds.
- The midbody fracture was found to be the most common fracture type in both breeds.
- The distribution of fracture location within the sesamoid bone was similar for both breeds.
Cite This Article
APA
Henninger RW, Bramlage LR, Schneider RK, Gabel AA.
(1991).
Lag screw and cancellous bone graft fixation of transverse proximal sesamoid bone fractures in horses: 25 cases (1983-1989).
J Am Vet Med Assoc, 199(5), 606-612.
Publication
Researcher Affiliations
- Department of Veterinary Clinical Sciences, Veterinary Teaching Hospital, College of Veterinary Medicine, Ohio State University, Columbus 43210-1089.
MeSH Terms
- Animals
- Bone Screws / veterinary
- Bone Transplantation
- Female
- Follow-Up Studies
- Fracture Fixation / veterinary
- Fractures, Bone / surgery
- Fractures, Bone / veterinary
- Horses / injuries
- Horses / surgery
- Male
- Postoperative Complications / veterinary
- Retrospective Studies
- Sesamoid Bones / injuries
- Sesamoid Bones / surgery
- Treatment Outcome
Citations
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