Table 1.
Characteristics and treatment of primary appendicular OSA for 20 dogs that developed CSM
| Baseline OSA characteristics | Number (%) of dogs |
|---|---|
| Location | |
| Proximal humerus | 5 (25) |
| Distal radius | 4 (20) |
| Distal femur | 4 (20) |
| Distal tibia | 3 (15) |
| Proximal femur | 2 (10) |
| Proximal tibia | 2 (10) |
| Metastasis at diagnosis | |
| Absent | 18 (90) |
| Present | 2 (10) |
| Lung + CSM | 1 (5) |
| CSM only | 1 (5) |
| Treatment for primary OSA | |
| Curative intent | 15 (75) |
| Amputation + adjuvant treatment | 14 (70) |
| SRT + adjuvant treatment | 1 (5) |
| Palliative | 5 (25) |
| RT + chemotherapy/TKI | 2 (10) |
| RT alone | 1 (5) |
| ABPs/NSAIDs/opioids/gabapentin | 2 (10) |
Abbreviations: ABPs, aminobisphosphonates; CSM, cutaneous or subcutaneous metastases; NSAIDs, nonsteroidal anti‐inflammatory drugs; OSA, osteosarcoma; RT, radiation therapy; SRT, stereotactic radiation therapy; TKI, tyrosine kinase inhibitor.