A method for manufacturing a fiber-reinforced medical implant structure, providing a fiber-reinforced rigid insert comprising continuous fibers impregnated with at least one first thermoplastic polymer, performing a molding cycle by overmolding, comprising placing the fiber-reinforced rigid insert into a mold cavity; injection or compression molding into the mold cavity at least one second thermoplastic polymer in melted form, such that the fiber-reinforced rigid insert placed into the mold cavity is at least partly covered by the at least one second thermoplastic polymer, and cooling the at least one second thermoplastic polymer injection or compression molded into the mold cavity, thereby obtaining a molded fiber-reinforced medical implant structure containing the fiber-reinforced rigid insert at least partly covered by the at least one second thermoplastic polymer, wherein the fiber-reinforced rigid insert is in a predefined location in the mold cavity during said injection or compression molding and during said cooling, wherein the at least one first thermoplastic polymer and the at least one second thermoplastic polymer are the same or different, and characterized in that the at least one second thermoplastic polymer further contains additive(s), wherein the additive is at least one of calcium phosphate, beta-tricalcium phosphate (beta-TCP), glass particles, and mineral additive(s). providing a fiber-reinforced rigid insert comprising continuous fibers impregnated with at least one first thermoplastic polymer, performing a molding cycle by overmolding, comprising placing the fiber-reinforced rigid insert into a mold cavity; injection or compression molding into the mold cavity at least one second thermoplastic polymer in melted form, such that the fiber-reinforced rigid insert placed into the mold cavity is at least partly covered by the at least one second thermoplastic polymer, and cooling the at least one second thermoplastic polymer injection or compression molded into the mold cavity, thereby obtaining a molded fiber-reinforced medical implant structure containing the fiber-reinforced rigid insert at least partly covered by the at least one second thermoplastic polymer, placing the fiber-reinforced rigid insert into a mold cavity; injection or compression molding into the mold cavity at least one second thermoplastic polymer in melted form, such that the fiber-reinforced rigid insert placed into the mold cavity is at least partly covered by the at least one second thermoplastic polymer, and cooling the at least one second thermoplastic polymer injection or compression molded into the mold cavity, thereby obtaining a molded fiber-reinforced medical implant structure containing the fiber-reinforced rigid insert at least partly covered by the at least one second thermoplastic polymer, wherein the fiber-reinforced rigid insert is in a predefined location in the mold cavity during said injection or compression molding and during said cooling, wherein the at least one first thermoplastic polymer and the at least one second thermoplastic polymer are the same or different, and characterized in that the at least one second thermoplastic polymer further contains additive(s), wherein the additive is at least one of calcium phosphate, beta-tricalcium phosphate (beta-TCP), glass particles, and mineral additive(s).