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Table 5 Comparison of outcomes and range of motion between endoprosthesis and cement spacer in patients with and without axillary nerve and deltoid resection

From: Outcomes of modular endoprosthesis reconstruction versus cement spacer reconstruction following resection of proximal humeral tumors

Patients with axillary nerve resection (n = 23)
Data Endoprosthesis group ( n = 3) Cement spacer group ( n = 20) P -value
Mean ± SD Mean ± SD
MSTS score 24.7 ± 0.6 23.6 ± 1.2 0.131
Active range of motion (°)
 Forward flexion 20.0 ± 14.1 8.0 ± 12.3 0.243
 Extension 14.9 ± 17.9 15.0 ± 18.7 0.587
 Abduction 20.0 ± 14.1 8.00 ± 12.3 0.243
Patients without axillary nerve resection ( n = 35)
Data Endoprosthesis group ( n = 16) Cement spacer group ( n = 19) P -value
Mean ± SD Mean ± SD
MSTS score 24.9 ± 1.1 24.3 ± 1.6 0.252
Active range of motion (°)
 Forward flexion 31.9 ± 38.7 25.0 ± 22.4 0.590
 Extension 48.0 ± 25.3 35.0 ± 15.5 0.248
 Abduction 35.4 ± 18.9 35.0 ± 15.5 0.147
Patients with deltoid resection ( n = 41)`
Data Endoprosthesis group ( n = 13) Cement spacer group ( n = 28) P -value
Mean ± SD Mean ± SD
MSTS score 24.9 ± 1.2 23.8 ± 1.2 0.007
Active range of motion (°)
 Forward flexion 24.1 ± 21.5 12.0 ± 18.2 0.134
 Extension 55.0 ± 29.5 24.3 ± 18.8 0.044
 Abduction 31.4 ± 12.7 11.0 ± 15.6 0.002
Patients without deltoid resection ( n = 17)
Data Endoprosthesis group ( n = 6) Cement spacer group ( n = 11) P -value
Mean ± SD Mean ± SD
MSTS score 24.7 ± 0.8 24.4 ± 1.9 0.712
Active range of motion (°)
 Forward flexion 47.5 ± 62.4 28.6 ± 20.4 0.466
 Extension 37.5 ± 15.0 30.0 ± 21.2 0.571
 Abduction 38.0 ± 29.5 28.6 ± 20.4 0.525
  1. MSTS The Musculoskeletal Tumor Society