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Table 1 Demographics of the 15 patients

From: Iliosacral Bone Tumor Resection Using Cannulated Screw-Guided Gigli Saw - A Novel Technique

No Age/Sex Primary
/Recurrent
Diagnosis* Location-
centric
AJCC
Staging
Tumor
Extent
Resection
Type
Reconstruction** Estimated
Blood Loss (mL)
Operation
Time (hours)
Margin Local Recurrence
pattern/ time (m)
Time to metastasis
(m)
FU Status
1 25/F Primary OS Pelvis T2bN0M0# Sa-PI Ps IIa SRS+mesh 2100 6.5 Wide Contaminated/R0 Extensive/10 10 16 DOD
2 32/M Primary ES Sacrum T2bNxM0 Sm-PI Ps II/IIIa SRS+mesh 2800 5 Wide/R0 Localized/17 - 39 NED
3 46/M Recurrent CS Pelvis T4N0M1a Sm-PI+II Ps II SRS+Autograft 6000 7.5 Wide/R1 - at Dx 19 DOD
4 47/F Recurrent CS Pelvis T4N0M0 Scsf-PI Ps III SRS+Autograft 5300 7.5 Wide/R0 - - 36 NED
5 59/M Primary OS Pelvis T4N0M1b Ssf-PI+II Ps IIb SRS+pelvic prosthesis 6800 12 Marginal/R1 - 3 6 DOD
6 15/F Recurrent CS Pelvis T4N0M1a Ssf-PI+II Ps II SRS 2500 6 Wide/R0 - at Dx 11 DOD
7 23/M Recurrent OS Pelvis T4N0M1a Ssf-PI+II+III Ps II SRS 4000 6 Wide/R0 - at Dx 33 AWD
8 50/M Primary OS Pelvis T4N0M1a Ssf-PI+II+III Ps IIb Custom-made pelvic prosthesis 3800 10 Wide/R0 - - 31 NED
9 28/F Primary OS SIJ§ T4N0M0 Ssf-PI Ps IIa SRS+Allograft 2500 6 Wide/R0 - - 27 NED
10 32/F Primary CS Pelvis T4N0M0# Ssf-PI+II Ps IIb Custom-made pelvic prosthesis 5100 11 Wide Contaminated/R1 Localized/9 - 27 AWD
11 29/F Primary OS Pelvis T4N0M0 Ssf-PI+II Ps IIb Custom-made pelvic prosthesis 3500 8 Wide/R0 - - 21 NED
12 30/F Recurrent CS Sacrum T3N0M0 Sm-PI Ps IIa SRS 1200 5.5 Marginal/R0 - - 21 NED
13 55/F Primary DS Pelvis T4N0M0 Sm-PI Ps IIa SRS+mesh 2600 7 Wide/R0 - - 19 NED
14 24/M Primary OS SIJ§ T4N0M0 Sm-PI Ps IIa SRS+mesh 3900 6.5 Wide/R0 - - 19 NED
15 24/M Primary ES Pelvis T4N0M0 Ssf-PI+II Ps IIb SRS+pelvic prosthesis 2500 6.5 Wide/R0 - - 18 NED
  1. * OS, osteosarcoma; ES, Ewing’s sarcoma; CS, Chondrosarcoma; DS, dedifferentiated sarcoma
  2. # Tumor thrombus was found in iliac veins although staged as N0
  3. §The tumor was staged according to both spine and pelvis TNM classification with higher one being recorded.
  4. ¶ Sa, sacral ala; Sm, middle line of sacrum, Ssf, ipislateral ventral sacral foramina, Scsf, contralateral ventral sacral foramina
  5. According to Peking University Classification [reference no.]
  6. **SRS, screw-rod system