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.

Anatomy and biomechanics of healthy and arthritic trapeziometacarpal joints.

Understanding the biomechanics of the trapeziometacarpal (TMC) or first carpometacarpal (CMC1) joint, the pathophysiology of basal thumb arthritis, the design and performance of surgical procedures require a solid anatomical basis. This review of literature summarizes the most recent data on the descriptive, functional, and comparative anatomy of healthy and arthritic TMC joints.

Reproducibility of X-rays and CT arthrography in SLAC, SNAC, SCAC wrists.

The purpose of this study was to assess the inter-observer and intra-observer reproducibility of the interpretation of CT arthrography and plain X-rays for scapholunate advanced collapse (SLAC), scaphoid non-union advanced collapse (SNAC) and scaphoid chondrocalcinosis advanced collapse (SCAC) wrist conditions, as well as the clinical relevance of these imaging modalities. The CT and X-rays images were reviewed twice in a blinded and randomized manner by two experienced orthopedic surgeons specialized in hand surgery, two orthopedic surgery residents and two experienced radiologists specialized in bone and joint imaging. Cohen's kappa and Fleiss' kappa coefficients were used to analyze the reproducibility of interpretation of the radiological examinations.

Results of Perilunate Dislocations and Perilunate Fracture Dislocations With a Minimum 15-Year Follow-Up.

Purpose: To evaluate the long-term clinical, functional, and radiological outcomes in 30 patients with at least 15 years of follow-up.

Methods: We performed a retrospective study that identified 73 patients. Thirty patients agreed to participate and were included.

Anatomical study of the ligamentous attachments and articular surfaces of the trapeziometacarpal joint. Consequences on surgical management of its osteoarthrosis.

In the goal to optimize conservative surgical techniques of the trapeziometacarpal joint in cases of moderate osteoarthritis, we have defined the relationships between the ligamentous attachments and the articular surfaces onto the trapezium and the first metacarpal bone on the one hand, and the dorsovolar and the transverse diameters of the articular surfaces on the other hand. Thirty-six trapeziometacarpal joints (from 18 fresh cadavers) were studied. They were separated into two groups depending on the macroscopic assessment of chondral disease.

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.

Amandys(®) implant: novel pyrocarbon arthroplasty for the wrist.

Objectives: Post-traumatic, arthritic or degenerative destruction of the midcarpal and radiocarpal joints are difficult to treat. A new arthroplasty with a free interposition pyrocarbon implant, Amandys(®), is proposed for the treatment of extensive destruction of midcarpal and radiocarpal joints. Preliminary results are reported.

Use of an iliac crest growth plate for the development of a neo-articulation for congenital transverse deficiencies at the wrist.

Purpose: Terminal congenital transverse deficiencies of the wrist and hand are rare malformations. They are usually treated with prosthetic devices. We describe here a surgical technique to create a neo-articulation that could provide mobility distal to the forearm and help children with terminal transverse deficiencies use orthotic devices.