EPIDEMOLOGICAL, RADIOGRAPHIC AND PROGNOSTIC EVALUATION OF CHONDROBLASTOMA.

Area of Science:

• Orthopedic Oncology
• Radiology
• Pathology

Background:

• Chondroblastoma is a rare bone tumor typically affecting adolescents.
• Understanding its clinical and imaging features is crucial for management.
• Joint complications can significantly impact patient outcomes.

Purpose of the Study:

• To characterize the clinical and imaging presentation of chondroblastoma.
• To identify factors associated with the development of joint complications.

Main Methods:

• Retrospective cohort study of 19 patients diagnosed with chondroblastoma.
• Analysis of medical records and imaging characteristics.
• Statistical analysis to determine correlations.

Main Results:

• Chondroblastoma commonly occurred in the greater trochanter apophysis.
• Imaging revealed cortical rupture, cartilage violation, and medullary edema in a significant proportion of cases.
• Secondary osteoarthritis was the most frequent complication, directly related to tumor aggressiveness (Enneking classification).

Conclusions:

• Tumor severity, not patient demographics or specific imaging findings like aneurysmal bone cysts, correlates with secondary osteoarthritis.
• Progression to secondary osteoarthritis is the primary non-oncological complication of chondroblastoma.