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06:06
Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint
Published on: July 22, 2021
Anatomically neutral silicone small joint arthroplasty for osteoarthritis
Surena Namdari1, Arnold-Peter C Weiss
1Department of Orthopaedics, Alpert Medical School, Brown University, Rhode Island Hospital, Providence, RI, USA.
The Journal of Hand Surgery
|February 3, 2009
Summary
This study shows that the NeuFlex silicone implant provides excellent pain relief and high patient satisfaction for metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joint osteoarthritis, with good range of motion and low complication rates.
Area of Science:
- Orthopedic surgery
- Hand surgery
- Biomaterials science
Background:
- Osteoarthritis commonly affects metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints.
- Surgical options include arthrodesis and arthroplasty.
- Silicone joint arthroplasty is a viable option for pain relief and functional restoration.
Purpose of the Study:
- To evaluate the outcomes of MCP and PIP arthroplasty using the anatomically neutral NeuFlex silicone implant.
- To assess pain relief, functional restoration, and patient satisfaction after surgery.
Main Methods:
- A total of 13 MCP and 16 PIP joint replacements were performed in 19 patients.
- Mean follow-up was 4 years.
- Outcomes were assessed via questionnaires, physical examination, and radiographs.
Main Results:
- Mean flexion arc was 65° (MCP) and 61° (PIP); mean extension lag was 3° (MCP) and 0° (PIP).
- 84% reported excellent or good pain relief; 90% were satisfied.
- Michigan Hand Outcomes Questionnaire scores were 88 (MCP) and 87 (PIP). One implant fracture occurred.
Conclusions:
- NeuFlex implant arthroplasty provides reliable, long-term pain relief and functional maintenance for MCP and PIP osteoarthritis.
- High rates of pain relief, patient satisfaction, and satisfactory range of motion were observed.
- The implant demonstrated a low rate of fracture, comparable to other designs.
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