Innovative chest wall reconstruction with a locking plate and cement spacer after radical resection of chondrosarcoma in the sternum: A case report

Table 1 Case report timeline

Complaint/investigations	Details
Presenting symptoms	Dull pain and protruding mass for 3 mo; Nocturnal pain; Mass gradually increased in size; Overhead arm elevation limitation
CT	Focal osteoblastic change in sternum manubrium region with bony exostosis with adjacent soft tissue calcification mass
PET-CT	Mass with hypermetabolic activity over the upper sternum
Bone scintigraphy	Focal increased uptake over the upper sternum
MRI	Focal ill-defined bony mass of the sternum with cortical destruction and periosteal reaction
Biopsy	Hypercellular mass with groups of neoplastic chondrocytes and extensive chondroid matrix component; Tumor cells with enlarged hyperchromatic nuclei and occasional binucleation; Some bony fragments are also present; Immunohistochemical positivity for S100 positive and focal positivity for IDH-1
Surgical intervention	Radical tumor resection followed by chest wall reconstruction with a locking plate and cement spacer; Pathology suggested grade II chondrosarcoma
Admission course	The patient was discharged 1 wk after the surgery without complication
Postoperative 1-year follow-up	1-yr follow-up: Improved CS, NSS and OSS; No evidence of local recurrence; Further consecutive follow-up needed

CT: Computed tomography; PET-CT: Positron emission tomography-computed tomography; MRI: Magnetic resonance imaging; CS: Constant Score; NCS: Nottingham Clavicle Score; OSS: Oxford Shoulder Score.