EAR	Extra-articular resection
LR	Local recurrence
DM	Distant metastasis
OS	Overall survival
CI	Confidence interval
LSS	Limb salvage surgery
IAR	Intra-articular resection
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
LOE	Level of evidence
DF	Distal femur
PT	Proximal tibia
ST	Soft tissue
PF	Proximal femur
PH	Proximal humerus
ACJ	Acromioclavicular joint
NR	Not reported
OSA	Osteosarcoma
CS	Chondrosarcoma
UPS	Undifferentiated pleomorphic sarcoma
SS	Synovial sarcoma
ES	Ewing sarcoma
EM	Extensor mechanism
RT	Radiotherapy
CT	Chemotherapy
DFR	Distal femoral replacement
PTR	Proximal tibial replacement
APC	Allograft–prosthetic composite
T–L	Tikhoff–Linberg procedure
PHR	Proximal humeral replacement
LARS	Ligament Advanced Reinforcement System
EP	Endoprosthesis
PFR	Proximal femoral replacement
TFR	Total femoral replacement
W	Wide
M	Marginal
I	Intralesional
R0	Microscopically negative margin
R1	Microscopically positive margin
non-R0	Margin reported as not microscopically negative
JBI	Joanna Briggs Institute
NOS	Newcastle–Ottawa Scale