Arthroplasty of the proximal interphalangeal joint of the hand: the current state of the problem

Abstract

Introduction The proximal interphalangeal joint (PIP joint) plays an important role in ensuring optimal finger dexterity, grip strength and overall hand functionality. Arthroplasty is a promising direction in the surgical treatment of arthritis of the PIP joint of the hand, however, the inconsistency of the results encourages the world scientific community to be restrained and further investigate the problems associated with PIP joint arthroplasty. The purpose of the work was to identify the main problems of PIP joint arthroplasty based on the analysis of foreign and domestic medical literature. Methods In this literature review, an analysis of foreign and domestic scientific publications devoted to the treatment of diseases and injuries of PIP joint was carried out. The purpose of the study was to provide a brief historical background and identify the main problems of PIP joint arthroplasty based on the analysis of foreign and domestic medical literature. Results and discussion The choice of the implant and the surgical aproach used are the two most frequently discussed issues in PIP joint arthroplasty; dorsal, palmar and lateral surgical approaches are described, each with its own advantages and disadvantages. Dorsal approaches are used most often because they are easier to perform; however, the fragile extensor apparatus is damaged with the subsequent development of extensor lag. A number of authors concluded that stiffness and extensor lag were the most common postoperative complications. Several combinations of materials are available: from classic chrome-cobalt/polyethylene to ceramic/ceramic and pyrocarbon/pyrocarbon. Most of them have not stood the test of time yet, and for most implants there is still a lack of real long-term monitoring series for survival of the design. Conclusion The morphology of joints, small bone sizes, complex biomechanics and the load on the hand are a special problem in PIP joint arthroplasty. It is still not possible to restore the full range of motion in this joint, despite the success of colleagues in arthroplasty of large joints.

Keywords

• proximal interphalangeal joint
• arthroplasty
• hand joints
• arthroplasty of the proximal interphalangeal joint
• biomechanics of the fingers of the hand