Hand & Wrist Pyrocarbon Implants Outcomes Clinical Study

Inclusion Criteria:

• 18 years or older at the time he/she receives the information and signs the informedconsent (when applicable as per local regulatory requirements),

• Informed on the study and willing to sign an informed consent form approved byInstitutional Review Board or Ethics Committee,

• Willing and able to comply with the requirements of the study protocol,

• For prospective inclusion: considered for treatment with one of PyC Hand/Wrist studyimplants (primary or revision surgery),

• For "ambispective" inclusion: must have undergone a Hand or Wrist arthroplasty witha PyC Hand/Wrist study implant before the date of first site initiation visit,

• Follow-up visits (at least the last two) must be prospective,

• Patient must have complete information available for each completed visit

Exclusion Criteria:

• Patient pertaining to one of the categories referred to as "vulnerable population"in the French Law (articles L. 1121-5 to L. 1121-8 of the French Public HealthCode), or as "particularly vulnerable persons" in the Swiss Federal Law (Chapter 3,Sections 1 to 4 of CC 810.30 Federal Act on Research involving Human Beings - HumanResearch Act, HRA),

• Patient unable to comply with the study procedures based on the judgment of theinvestigator (e.g. cannot comprehend study questions, inability to keep scheduledassessment times),

• Any medical condition that could impact on the study outcomes functionalsignification at the investigator's discretion (e.g., neuropathy, allergy...)