Outcome after Repair of a Sarcoma-Related Pathologic Fracture in Dogs: A Veterinary Society of Surgical Oncology Retrospective Study

Summary Data for 16 Dogs with Sarcoma-Related Pathologic FractureDog SignalmentWeight (kg) Fracture Site Repair MethodALP (U/L)MetastasisAdjunctive TreatmentSurvival Time (Days)Pulmonary Bone 1 9y FS Rottweiler 50 L proximal humerus Interlocking nail 144 No ND N 110 2 6y FS German Shepherd 34.8 L proximal humerus Interlocking Nail 98 No Yes N 534 3 9.5y FS Greyhound 37 L midhumerus Plate-rod 33 No ND N439 4 7y M Flat-coated Retriever 42 R humeral condyle and diaphysis Plates, screws Normal No ND N 218 5 6y MC Newfoundland 58 L distal radius Bone plate with carpal arthrodesis 39 No No R48976 7.5y MC mixed breed 36.4 R distal radius Steinman pin and rush pins 83 No!ND C, Rz46597 8y MC Borzoi 38.2 R distal radius Circular skeletal fixator 84 No YeswC, R, P4218L Radius 8 9y MC Rottweiler 51.8 R proximal femur Bone Plate — ND ND N LTF 9 6y MC Rottweiler 43 R distal femur Plate femur and radius (met) 219 No Yes C, R, P 394 R radius and 4th rib 10 12y FS Springer Spaniel 23 R distal femur Interlocking nail 127 No ND R, P 114 11 12y FS Greyhound 30.6 L diaphyseal femur Interlocking nail 20 No No N LTF12 11y FS Rottweiler 44 R diaphyseal femur‰Plate, screws 69 No ND N 64 13 10y M Mastiff 84 R femur Locking plate 105 Yes (CT confirmed)ND N 1814 12y FS Shetland Sheepdog 18 L distal femur Condyle plate 95 No ND N411015 9y FS Labrador Retriever 27 R distal tibia Double plate — No ND N417 months 16 11y MC Greyhound 26.2 R distal tibia External fixator 141 ND ND N 113!Enlarged sternal lymph node.wDog had a primary lesion of the right distal radius, bone scan showed increased uptake in the opposite radius as well, indicating either a metastatic orsynchronous lesion.zThis dog received full course radiation.‰Previous total hip replacement at this site. F,female;M,male;FS,spayedfemale;MC,castratedmale;R,right;L,left;ND,notdone,indicatingthateither3-viewthoracicradiographyorbonescanwerenotperformed;N,none,indicatingnoadjunctive therapy; C, chemotherapy; R, radiation therapy; P, pamidronate; ALP, alkaline phosphatase; LTF, lost to follow-up; y, year.