Treatment of long finger metacarpophalangeal arthritis using HAPY® pyrocarbon interposition implants: a study of 34 cases.

Introduction: Destruction of the metacarpophalangeal joint can result in disabling pain and stiffness. Several therapeutic options are available, including pyrocarbon interposition implants. The primary endpoint of this study was assessment of clinical and radiographic outcomes in 34 patients treated with HAPY® pyrocarbon interposition implants (Tornier, Grenoble, France) with a minimum follow-up of 3 years.

Comparison between scaphotrapeziotrapezoid arthrodesis and Pyrocardan® implant for isolated scaphotrapeziotrapezoid osteoarthritis.

Introduction: Scaphotrapeziotrapezoid (STT) arthrodesis and Pyrocardan® implant for painful isolated STT osteoarthritis have shown good results, but no paper has compared their medium-term outcomes.

Hypotheses: Our main hypothesis would be that the Pyrocardan® implant, by preserving the carpal biomechanics, could lead to better wrist mobility. Our secondary hypotheses would be that no other clinical and radiological differences will be found between these two procedures at a mean 5 years follow-up.

Percutaneous fixation of scaphoid fractures through the snuffbox: an anatomical study.

The aim of the present anatomical study was to assess the dorso-radial approach for percutaneous fixation of scaphoid wist fractures. Through the anatomical snuffbox, cannulated screws or 1.2 mm K-wires were inserted into the scaphoids of 20 fresh-frozen cadavers.

Surgical Treatment of Symptomatic End-Neuroma With a New Bioresorbable Copolyester Nerve Capping Device: A Multicenter Prospective Cohort Study.

Background: Neuroma-induced neuropathic pain is associated with loss of function and reduced quality of life. No consistently effective standard-of-care treatment has been defined. Neurocap, a bioresorbable nerve capping device, has been designed to isolate the nerve stump from surrounding tissues to reduce development of symptomatic end-neuromas.

Pyrocardan Scaphotrapeziotrapezoid Joint Arthroplasty for Isolated Osteoarthritis: Results after a Mean Follow-Up of 5 Years.

 Isolated scaphotrapeziotrapezoid (STT) osteoarthritis (OA) mainly develops in women over 50 years of age in a bilateral manner. Many surgical treatments are available, including distal scaphoid resection with or without interposition, trapeziectomy, and STT arthrodesis. However, there is a controversy about which procedure is the most effective.

Thumb Carpometacarpal Implant Arthroplasty.

Thumb carpometacarpal implant arthroplasty aims to preserve thumb length and motion and to provide pain relief and functional recovery after a short postoperative time. For several decades, implant arthroplasty has been performed with total trapeziometacarpal joint prosthesis using the concept of "ball-and-socket" joint. More recently, pyrocarbon implants used as hemiarthroplasty or interposition arthroplasty have been proposed.

Medium-Term Outcomes for Amandys Implant: A 5-Year Minimum Follow-Up of 63 Cases.

 Amandys is a pyrocarbon interposition implant used as a therapeutic alternative to total wrist fusion (TWF) or total wrist arthroplasty (TWA) in painful and disabling extensive destruction of the wrist.  To review mid-term outcomes in a continuous prospective series of patients who underwent wrist arthroplasty Amandys with a minimum follow-up of 5 years.  Clinical evaluation included a satisfaction survey, pain, two functional scores, the short version of the Disabilities of the Arm, Shoulder, and Hand (QuickDASH) and the Patient-Rated Wrist Evaluation (PRWE), active wrist mobility, and grip strength compared with the contralateral side.

The impact of COVID-19 on hand surgery: A French retrospective comparative study in COVID-19 and non-COVID-19 hand trauma centers.

Introduction: In 2020, the pandemic divided France into two zones: COVID-19 and non-COVID-19. The main objective of our study was to compare the variability of surgical and emergency consultation activity amongst two hand trauma centers, between the pandemic period and outside the pandemic period. The secondary objective was to identify at-risk patients in order to develop preventative strategies in hand trauma.

Double trapeziometacarpal and scaphotrapeziotrapezoidal pyrocarbon interposition implants for pantrapezial arthritis: Midterm results and surgical technique.

Background: Pantrapezial osteoarthritis of the thumb (OA) includes involvements of scaphotrapezoidtrapezoidal (STT) and trapeziometacarpal (TM) joints which are source of disabling pain and function loss. Whilst radical procedures or arthroplasties are available, more conservative techniques have been developed recently and have gain popularity. They aim of this study was to know the midterms results of patients presenting peritrapezial OA treated with a double interposition pyrocarbon implant at the STT and TM joints.

Mechanical performance comparison of two surgical constructs for wrist four-corner arthrodesis via dorsal and radial approaches.

Background: Four-corner arthrodesis, which involves fusing four carpal bones while removing the scaphoid bone, is a standard surgery for the treatment of advanced stages of wrist arthritis. Nowadays, it can be performed using a dorsal approach by fixing a plate to the bones and a new radial approach is in development. To date, there is no consensus on the biomechanically optimal and most reliable surgical construct for four-corner arthrodesis.

Medium- and long-term outcomes for hand and wrist pyrocarbon implants.

The article reviews the techniques and surgical outcomes of arthroplasties of the metacarpophalangeal, carpometacarpal and the wrist joints. In my patients, interposition pyrocarbon implants quickly achieve functional recovery and do not deteriorate time. Bony and articular tolerances are remarkable.

Treatment of Pisotriquetral Arthritis by Pyrocarbon Interposition Arthroplasty.

 Pisiformectomy is the baseline treatment for pisotriquetral arthritis when medical treatment fails to address the problem. This operation may lead to loss of mobility and strength in the wrist. This study reports the short-term outcomes of a new technique for treating pisotriquetral arthritis using a pisotriquetral interposition arthroplasty with a pyrocarbon implant.

Pyrocarbon interposition after capitate head resection.

Background Isolated lunocapitate disease is a rare situation. It includes both capitolunate arthritis and osteonecrosis of the capitate head. The management of this pathology is not defined yet.

Pyrocarbon interposition wrist arthroplasty in the treatment of failed wrist procedures.

Treatment of failures after prior wrist surgeries with major articular destruction is challenging. In most cases, total wrist fusion is the only possible salvage procedure. We propose a new interposition arthroplasty with a pyrocarbon implant called Amandys.

Pi2 spacer pyrocarbon arthroplasty technique for thumb basal joint osteoarthritis.

Trapeziectomy associated with a pyrocarbon implant is a recent procedure for thumb basal joint osteoarthritis. The investigators report Pi pyrocarbon implant technique (Tornier Bioprofile, Grenoble, France) for primary thumb basal joint osteoarthritis. The key points of the procedure are preservation of the soft tissue environment during the trapeziectomy, partial trapezoidectomy to medialize the implant, and careful capsuloplasty and ligamentoplasty to stabilize the implant.