Acta Ortopédica Mexicana

Farías-Cisneros E, Kaufman CL, Scheker LR
Ulnar shortening: results for treatment of distal radioulnar joint pathology and conversion to DRUJ replacement arthroplasty
Acta Ortop Mex 2018; 32 (5)

Language: Inglés
References: 33
Page: 245-250
PDF: 156.19 Kb.

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Background: Ulnar shortening (US) is used for treatment of ulnar abutment, early osteoarthrosis (OA) and distal radioulnar joint (DRUJ) instability. However, it has never been strongly advocated as a mid-stage procedure to slow OA progression and reduce requirement of secondary DRUJ procedures. The study aim was to determine if a specific sigmoid notch type is likely to lead to DRUJ replacement after US. Methods: A retrospective study of 119 patients (124 wrists) with DRUJ painful early osteoarthritis, ulnar abutment and DRUJ instability that underwent US was performed. The goals of osteotomy were to decrease pain and slow the initiation or progression of OA. Sigmoid notch type, previous trauma, bone healing time, pain relief, ulnar variance and conversion to DRUJ arthroplasty were analyzed. Results: Of the 124 wrists studied, bone healing took 3.33 months of average (union rate 98.3%). Sigmoid notch type distribution was 55.6% for type 1, 25.8% for type 2, and 18.5% for type 3. Of the patients with pain after US, 37 had hardware removal and 13 required a DRUJ semi-constrained arthroplasty. Even though analysis did not show any statistically significant correlation, a slight trend towards association of sigmoid notch type 3 with conversion to DRUJ arthroplasty was found. Conclusion: US has a role in treatment of DRUJ pathology, and its use may delay the need for DRUJ secondary procedures, protecting the native joint. A specific sigmoid notch type does not present risk for OA and does not appear to be related to conversion to DRUJ arthroplasty. Type of study: Therapeutic

Key words: Ulnar shortening, DRUJ arthroplasty, DRUJ sigmoid notch, DRUJ osteoarthritis, DRUJ instability.


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