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Table 2 Patient demographics by treatment group

From: Dedifferentiated chondrosarcoma of the pelvis: clinical outcomes and current treatment

  Overall cohort Limb-salvage (LSS) Hindquarter amputation (HQA) Palliative p-value (between LSS and HQA groups)
Patient number (n, %) 31 13 (41.9%) 5 (16.1%) 13 (41.9%)  
Age (mean, range) 55.6 (33–76) 55.2 (43–72) 57 (52–62) 55.5 (33–76) 0.716
Enneking stage (n, %)
 Stage 2b 21 (67.7%) 13 (100%) 5 (100%) 3 (23.1%) 1.000
 Stage 3b (metastases) 10 (32.3%) 0 0 10 (76.9%) 1.000
 Biopsy diagnosis correct (n, %) 11 (61.1%) 6 (46.1%) 5 (100%) N/A 0.036
 Tumour location, solitary P1 lesions (n, %) 11 (35.5%) 1 (7.7%) 3 (60%) 7 (53.8%) 0.017
 Tumour size (max diameter, cm) 110.9 (45–200) 108.8 (45–200) 117.5 (90–180) N/A 0.756
 Chemotherapy (n, %) 15 (48.4%) 6 (46.1%) 2 (40%) 7 (53.8%) 0.814
 Radiotherapy (n, %) 7 (22.6%) 2 (15.4%) 1 (20%) 4 (30.8%) 0.814
 Surgery complications 2 (11.8%) 2 (15.4%) 0 N/A 0.352