Based on the hypothesis that the chest wall was still pliable in adolescence and could be reshaped in a normal position with the external suppressor applied on the chest, a pressure orthosis was started to be used in the pectus carinatum. It is the focus of attention as it is an alternative method to surgery for patients. However, the patient's compliance with the orthosis is difficult. Therefore, in our study, we aimed to investigate the Turkish Validity and Reliability of the Pectus Carinatum Evaluation Questionnaire, which is a questionnaire investigating the compliance with orthosis treatment in patients diagnosed with Pectus Carinatum by the doctor.

Inclusion Criteria:

1. Patients who have been diagnosed with Pectus Carinatum by a doctor, have an orthosis indication (2 cm above the protrusion level) and who are given the orthosis for the first time
2. Having a correction pressure below 10 pounds per square inch (PSI) in the compression test
3. Between the ages of 10-18,
4. Having dissatisfaction with this defect

Exclusion Criteria:

1. Having severe scoliosis (Cobb angle over 20 degrees)
2. Having chronic systemic disease
3. Having a serious psychiatric illness
4. Having complex mixed type pectus deformity

Patients with Pectus Carinatum