Background:
Approximately 30% of malignant, primary bone tumors are chondrosarcomas, which most frequent develop on the anterior chest wall. Patients who are treated with adequate surgical intervention recover, 10 years survival rate is 97%. Besides the aesthetic outcome, preservation of breathing and loading are crucial.

Material and Methods:
Authors present a case of a 44- year-old male patient operated on Grade II. chondrosarcoma of the manubrium. Concerning the youth of the patient, immediately reconstruction was carried out . The infiltrated part of the sternum was resected with wide margins. The reconstruction was performed with Dual Mesh covered by a pedicled left sided pectoral major muscle . As a unique technique, authors used the tendon of the semitendinous muscle to fix both claviculas together to give the stability and function for the chest wall.

Result:
After an uneventful postoperatve period the patient has a fast recovery.

Conclusion:
There are no data in the literature for such a method to fixate the anterior chest wall.