The KinematX Midcarpal Total Wrist Arthroplasty Registry

Study Overview
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Brief Summary
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The goal of this observational study is to learn about functional and patient reported outcomes in patient undergoing total wrist replacement with the KinematX total wrist replacement study. The main questions it aims to answer are: What is the range of motion (flexion, extension, radial, ulnar, grip and pinch strength) at 3-, 6-, and 12-months after surgery and yearly up to 10 years among patients having total wrist replacement with the KinematX implant. What are the patient reported outcomes (PROMIS, PRWE, HSS wrist expectations) at 3-, 6-, and 12-months after surgery and yearly up to 10 years among patients having total wrist replacement with the KinematX implant. How do range of motion and patient reported outcomes change over the 10 years after total wrist replacement surgery? Participants will be followed according to standard of care and preoperative and post-operative information for up to 10 years after surgery will be collected and entered into an electronic data base. Patients are eligible to enroll into the registry before or after they have had their wrist replacement surgery.

Official Title
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The KinematX Midcarpal Total Wrist Arthroplasty: A Multicenter Prospective Registry of Clinical and Patient-Reported Outcomes

Conditions
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Scapholunate Advanced Collapse (SLAC), Scapholunate Crystalline Advanced Collapse (SCAC), Scaphoid, Trapezium, and Trapezoid Advanced Collapse (STTAC), Carpal Tunnel Syndrome (CTS), Kienbock's Disease of Adults, Radial Malunion, Ulnar Translocation, Post Traumatic Arthritis, Inflammatory Arthritis, Osteoarthritis, Scaphoid Non-union Advanced Collapse (SNAC)

Intervention / Treatment
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* Device: KinematX total wrist arthroplasty system


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: one of the following diagnoses and planned (or previously completed) total wrist arthroplasty with the KinematX total wrist: osteoarthritis or post-traumatic arthritis scapholunate advanced collapse (SLAC/SNAC wrist), inflammatory arthritis (rheumatoid, psoriatic, other), crystalline advanced collapse (SCAC), STT advanced collapse (STTAC), ulnar translocation, Kienbӧck disease, radial malunion Exclusion Criteria: <18 years of age >85 years of age Prisoners Children Pregnant women Contraindications to receiving the KinematX: Local, distant or systematic acute or chronic soft tissue or bony infection Physiologically or psychologically compromised patient Active wrist synovitis or severe carpal bone erosion Suspected or documented metal allergy or intolerance Insufficient extensor tendons Inadequate skin, bone, neural or vascular status Severe carpal bone malalignment, displacement, absorption, neoplastic, or carpal bone pathology Sepsis Osteomyelitis Uncontrolled/untreated osteoporosis or metabolic bone disease Metabolic or endocrinologic bone disorders Osteomalacia Distant foci of infections which may spread to the implant site Rapid joint destruction, marked bone loss or bone resorption apparent on roentgenogram

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 85 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| KinematX patients<br>Patients undergoing total wrist replacement with the KinematX implant. | Device: KinematX total wrist arthroplasty system<br>* The KinematX total wrist implant is a joint metal/polymer semi-constrained cemented prosthesis that utilizes an articulation that mimics the midcarpal joint instead of the radiocarpal joint.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Range of Motion (as assessed by physician) | Flexion, Extension, Ulnar, Radial | Up to 10 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| PROMIS Upper Extremity Physical Function 7a | 7 questions designed to understand the patient's physical function in the upper extremity specifically; population average t-score is 50, with a standard deviation of 10; higher scores are better. | 3 months, 6 months, yearly up to 10 years post-surgery | 
| PROMIS Pain Interference 8a | 8 questions designed to understand how any pain experienced interferes with the patient's day to day life; population average t-score is 50, with a standard deviation of 10; lower scores are better | 3 months, 6 months, yearly up to 10 years post-surgery | 
| PROMIS Global 10 | 10 questions to assess the patient's global health with subscales for physical health and mental health; Physical health t-scores range from 16.2 to 67.7; Mental health t-scores range from 21.2 to 67.6; higher scores are better | 3 months, 6 months, yearly up to 10 years post-surgery | 
| Patient-Rated Wrist Evaluation Score (PRWE) | 15 questions that assess pain and function; total scores can range from 0-100; lower scores are better | 3 months, 6 months, yearly up to 10 years post-surgery | 
| Hospital for Special Surgery Wrist Surgery Expectations Survey | 22 questions that assess how the patient expects to benefit from the surgery and a corresponding post-operative instrument that asks about actual experience; score range from 22 to 110; lower scores are better | Pre-operative and yearly up to 10 years post-surgery | 
| Percentage of patients experiencing post-operative complications |  | 3 months, 6 months, yearly up to 10 years post-surgery | 
| Percentage of patients requiring revision surgery for their implant (with or without implant replacement) |  | 3 months, 6 months, yearly up to 10 years post-surgery | 
| Grip and pinch strength (as assessed by physician) | Grip and pinch strength | 3months, 6 months, yearly up to 10 years post-surgery | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Total wrist replacement, Total wrist arthroplasty