TMT Fusion Plate vs. Two Crossed Screws

Inclusion Criteria: * Age: between 18 and 65 years * At least one of the following: * 1st TMT arthritis * hallux valgus (intermetatarsal angle (IM) 1-2 angle \> 15° on plain x-ray) * 1st ray hypermobility with or without flat foot * Painful condition * Ability to understand the content of the patient information / Informed Consent Form * Willingness and ability to participate in the clinical investigation according to the Clinical Investigation Plan (CIP) * Signed and dated IRB/EC-approved written informed consent Exclusion Criteria: * Active infection * Previous surgery on the 1st ray of the same foot * Previous non-union on the 1st ray of the same foot * Clinical obvious arthritis in other joints of the lower extremities * Purely seeking plastic surgery * Peripheral vascular disease (e.g. advanced diabetes) * Peripheral sensory neuropathy (e.g. advanced diabetes) * Concurrent surgery of the contralateral foot * Any previously medically unmanaged severe systemic disease * Substance abuse that would preclude reliable assessment * Prisoner * Participation in any other medical device or medicinal product study within the previous month that could influence the results of the present study