This study aims to evaluate the safety and efficacy of a novel bone substitute material for the treatment of bone defects in patients requiring defect filling following the excision of benign bone tumors, cysts, or similar lesions. A total of 29 patients will undergo surgical intervention during which the bone substitute paste is applied to the defect site. Patients will be followed for 12 months, with radiographic assessments to monitor bone healing. The primary objectives of the study are to assess the adequacy of bone regeneration and to evaluate the safety profile of the material.
This prospective, non-randomized, unblinded clinical trial evaluates a non-setting paste for bone defect reconstruction. The study is conducted at two centers in Poland (Gdańsk and Zgorzelec). The study enrolls 29 patients aged 18-75 years who require bone defect filling following curettage of benign bone tumors and tumor-like lesions (cysts, chondromas, enchondromas). Patients with inflammatory conditions, autoimmune diseases, hypersensitivity to any components, or those using medications affecting bone remodeling are excluded. Bone remodeling is assessed radiologically at 6 weeks, 6 months, and 12 months using the modified four-grade Neer classification. Success is defined as achieving Grade I (\>75% remodeling) or Grade II (51-75% remodeling) at 12 months. Secondary endpoints include safety monitoring and patient satisfaction.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
29
Non-setting paste is injected into bone defects during surgical procedures for bone void reconstruction.
Department of Orthopaedics and Traumatology, Medical University of Gdansk
Gdansk, Pomeranian Voivodeship, Poland
Efficacy of Non-setting Paste in Bone Defect Remodeling at 12 Months
Success is defined as achieving Grade I (\>75% bone remodeling with \>75% material resorption) or Grade II (51-75% bone remodeling with 51-75% material resorption) according to the modified four-grade Neer classification system, assessed by radiographic examination with independent expert review.
Time frame: 12 months post-surgery
Safety profile assessment
Comprehensive monitoring of adverse events (AEs) and serious adverse events (SAEs) using the MedDRA classification system.
Time frame: Throughout 12-month study period
Bone remodeling progression at 6 weeks and 6 months
Assessment using modified Neer classification (Grade I-IV) by radiographic examination at 6 weeks and 6 months post-surgery to evaluate the progression of bone healing over time.
Time frame: 6 weeks, 6 months post-implantation
Patient Satisfaction
Evaluation of patient satisfaction with clinical trial participation and treatment outcomes using structured questionnaires.
Time frame: 12 months post-surgery
Treatment discontinuation rate
Number and percentage of patients who discontinue treatment due to device-related adverse events.
Time frame: Throughout 12-month study period
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