Abstract
Osteoarthritis of the radioscaphoid joint (radioscaphoid arthrosis) is, a rare condition, caused by a scaphoid nounion, scapholunate advanced collapse (SLAC degeneration) and others. We reported about two cases of this disorder treated by arthroplasty using a coiled tendon grafting.Case 1 had a chronic scaphoid nonunion, and case 2 had a chronic scapholunate advanced collapse deformity. Both cases had severe wrist pain and moition was significantly limited. X-rays showed degenerative changed in the radioscaphoid and scaphotrapezial-trapezoidal joints in both patients.We performed radioscaphoid arthroplasty with partial scaphoid resection using a coiled tendon grafting, radial styloidectomy and scaphotarapezial-trapezoidal fusion. In case 2, capitolunate fusion was carried out additionally. Follow-up time was 9 months in case 1, and 6.5 months in case 2. Preoperative pain was dramatically relieved in both patients, so they returned to preoperative occupations.In conclusion, Arthroplasty using a coiled tendon grafting for radioscaphoid arthrosis is thought to be a reliable method to replace a segment of collapsed scaphoid.
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