Please assess the completion status of the following clinical trial:

Trial Title: Dorsal Versus Volar Approach for CapFlex-PIP© Implantation

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Indication for CapFlex-PIP© arthroplasty~* Patient aged 18 years and over~* Informed Consent as documented by signature~Exclusion Criteria:~* Revision surgery~* CapFlex-PIP© arthroplasty at the thumb IP joint~* Major surgery at the same finger (e.g. DIP arthrodesis)~* Ulnar/radial deviation of the PIP joint \> 15°~* Patients in which a reconstruction of the collateral ligaments has to be performed~* General medical contraindication to surgery~* German language barrier to complete the questionnaires~* Any disease process that would preclude accurate evaluation (e.g. neuromuscular, psychiatric or metabolic disorder)~* Pregnancy~* Surgery not planned by Dr. Herren, Dr. Schindele or Dr. Bodmer~* Legal incompetence

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Dorsal approach CapFlex arthroplasty (Type: EXPERIMENTAL): Arthroplasty of the PIP joint with the CapFlex implant. Surgery will be done with the dorsal approach.
- Volar approach CapFlex arthroplasty (Type: ACTIVE_COMPARATOR): Arthroplasty of the PIP joint with the CapFlex implant. Surgery will be done with the volar approach.

Based on this trial design, predict the completion outcome and termination type (if applicable).