Although coxofemoral pain is most commonly associated with canine hip dysplasia, it can also arise from primary osteoarthritis unrelated to canine hip dysplasia, chronic hip luxations, failed femoral head and neck ostectomies (FHNO), severe femoral head or neck fractures, malunions after acetabular, femoral head, or neck fractures, and from avascular necrosis of the femoral head. Total hip replacement (THR) has been recommended for the surgical management of coxofemoral pain in patients affected with these conditions; however studies assessing their outcome are lacking. The objective of this study was to review the long-term outcome of dogs affected with non-dysplastic hip conditions treated with a cementless THR system (Kyon, Zurich). Nine dogs affected by traumatic hip disease treated with cementless THR were included in the study. Diagnoses included: traumatic hip luxation (n¼3), non-union of femoral head fracture (n¼3), femoral neck fracture (n¼1), femoral head avulsion fracture (n¼1) and pseudoarthrosis secondary to FHNO (n¼1). Signalment, body weight, diagnosis, implant size, surgical technique, and intraoperative and postoperative complications were reviewed. Radiographic follow-up was performed at least 3 months after surgery in all patients. An owner survey was used to obtain longterm follow-up at least 8 months after surgery. Complications occurred in 3 of the 9 cases. In one case, a THR was attempted, but subsequently converted to FHNO due to evident joint laxity which would have resulted in a high risk of luxation. Postoperative complications included: luxation of the acetabular component (n¼1) and breakage of the femoral stem (n¼1). Both cases were treated successfully by revision surgery. All dogs except one (graded as mildly abnormal) were determined to be free of lameness and other disabilities eight months or more after surgery according to the owner-completed survey. In conclusion, our findings suggest that THR can be a successful treatment for traumatic coxofemoral pathology in dogs.
Total hip replacement in dogs affected by traumatic hip joint pathology
CAPPELLARI, Fulvio;BURACCO, Paolo;PEIRONE, Bruno
2009-01-01
Abstract
Although coxofemoral pain is most commonly associated with canine hip dysplasia, it can also arise from primary osteoarthritis unrelated to canine hip dysplasia, chronic hip luxations, failed femoral head and neck ostectomies (FHNO), severe femoral head or neck fractures, malunions after acetabular, femoral head, or neck fractures, and from avascular necrosis of the femoral head. Total hip replacement (THR) has been recommended for the surgical management of coxofemoral pain in patients affected with these conditions; however studies assessing their outcome are lacking. The objective of this study was to review the long-term outcome of dogs affected with non-dysplastic hip conditions treated with a cementless THR system (Kyon, Zurich). Nine dogs affected by traumatic hip disease treated with cementless THR were included in the study. Diagnoses included: traumatic hip luxation (n¼3), non-union of femoral head fracture (n¼3), femoral neck fracture (n¼1), femoral head avulsion fracture (n¼1) and pseudoarthrosis secondary to FHNO (n¼1). Signalment, body weight, diagnosis, implant size, surgical technique, and intraoperative and postoperative complications were reviewed. Radiographic follow-up was performed at least 3 months after surgery in all patients. An owner survey was used to obtain longterm follow-up at least 8 months after surgery. Complications occurred in 3 of the 9 cases. In one case, a THR was attempted, but subsequently converted to FHNO due to evident joint laxity which would have resulted in a high risk of luxation. Postoperative complications included: luxation of the acetabular component (n¼1) and breakage of the femoral stem (n¼1). Both cases were treated successfully by revision surgery. All dogs except one (graded as mildly abnormal) were determined to be free of lameness and other disabilities eight months or more after surgery according to the owner-completed survey. In conclusion, our findings suggest that THR can be a successful treatment for traumatic coxofemoral pathology in dogs.
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