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Case Report 


Pyrocardan Arthroplasty of SECONDARY Osteoarthritis of the Scaphotrapeziotrapezoid Joint

Melissa Loh, Declan Loh, William YC Loh.

Abstract
Introduction:

Primary osteoarthritis can be considered to be the ‘wear and tear’ of cartilage as associated with age related changes. Secondary Osteoarthritis usually involves a specific ‘trigger’ which initiates these cartilaginous changes. Often overworking and overloading of the joints, particularly in the wrist can allude to this diagnosis. This case report documents a retired dentist having acquired secondary osteoarthritis of the Scaphotrapeziotrapezoid joint (STT) in the left wrist as an occupational hazard. Treatment for this presentation was the use of the Pyrocardan prosthesis.

Methods:

A retired dentist presented with Secondary Osteoarthritis of the left STT joint due to pre-existing fusions of the trapezio-metacarpal joint and metacarphophalangel joint of the ipsilateral thumb underwent the Pyrocardan STT joint arthroplasty. The QuickDASH ( Disabilities of Arm, Shoulder and Hand ), PRWE ( Patient Rated Wrist Evaluation ), Mayo Performance Wrist scores were used preoperatively and postoperatively to assess functional outcome.

Results:

The PRWE and Mayo Performance Wrist scores had significantly improved following surgery. The QuickDASH score remained the same because of his concomitant shoulder disorder. The range of wrist movement was satisfactorily maintained at the end of one year follow-up. The hand and pinch grip strength had also improved.

Conclusions:

Pyrocardan STT joint arthroplasty is a good treatment option because it not only provides a good pain relief but also maintains satisfactory functional wrist movements.

Practicing dentists should look to adopting the appropriate finger rest techniques and fulcrum rests when handling dental equipment to reduce the muscle stress and undue load on the STT and other joints in the wrist and hence reduce the risk of OA.

Key words: • Dentist • Scaphotrapeziotrapezoid (STT) • Pyrocardan • Secondary Osteoarthritis


 
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Pubmed Style

Loh M, Loh D, Loh WY. Pyrocardan Arthroplasty of SECONDARY Osteoarthritis of the Scaphotrapeziotrapezoid Joint. Hand Microsurg. 2020; 9(2): 106-110. doi:10.5455/handmicrosurg.110073


Web Style

Loh M, Loh D, Loh WY. Pyrocardan Arthroplasty of SECONDARY Osteoarthritis of the Scaphotrapeziotrapezoid Joint. http://handmicrosurgeryjournal.com/?mno=110073 [Access: August 30, 2020]. doi:10.5455/handmicrosurg.110073


AMA (American Medical Association) Style

Loh M, Loh D, Loh WY. Pyrocardan Arthroplasty of SECONDARY Osteoarthritis of the Scaphotrapeziotrapezoid Joint. Hand Microsurg. 2020; 9(2): 106-110. doi:10.5455/handmicrosurg.110073



Vancouver/ICMJE Style

Loh M, Loh D, Loh WY. Pyrocardan Arthroplasty of SECONDARY Osteoarthritis of the Scaphotrapeziotrapezoid Joint. Hand Microsurg. (2020), [cited August 30, 2020]; 9(2): 106-110. doi:10.5455/handmicrosurg.110073



Harvard Style

Loh, M., Loh, . D. & Loh, . W. Y. (2020) Pyrocardan Arthroplasty of SECONDARY Osteoarthritis of the Scaphotrapeziotrapezoid Joint. Hand Microsurg, 9 (2), 106-110. doi:10.5455/handmicrosurg.110073



Turabian Style

Loh, Melissa, Declan Loh, and William YC Loh. 2020. Pyrocardan Arthroplasty of SECONDARY Osteoarthritis of the Scaphotrapeziotrapezoid Joint. Hand and Microsurgery, 9 (2), 106-110. doi:10.5455/handmicrosurg.110073



Chicago Style

Loh, Melissa, Declan Loh, and William YC Loh. "Pyrocardan Arthroplasty of SECONDARY Osteoarthritis of the Scaphotrapeziotrapezoid Joint." Hand and Microsurgery 9 (2020), 106-110. doi:10.5455/handmicrosurg.110073



MLA (The Modern Language Association) Style

Loh, Melissa, Declan Loh, and William YC Loh. "Pyrocardan Arthroplasty of SECONDARY Osteoarthritis of the Scaphotrapeziotrapezoid Joint." Hand and Microsurgery 9.2 (2020), 106-110. Print. doi:10.5455/handmicrosurg.110073



APA (American Psychological Association) Style

Loh, M., Loh, . D. & Loh, . W. Y. (2020) Pyrocardan Arthroplasty of SECONDARY Osteoarthritis of the Scaphotrapeziotrapezoid Joint. Hand and Microsurgery, 9 (2), 106-110. doi:10.5455/handmicrosurg.110073








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