J Wrist Surg 2016; 05(02): 124-130
DOI: 10.1055/s-0036-1571282
Scientific Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Stability and Clinical Outcome after Reconstruction of Complete Triangular Fibrocartilage Disruption

Florian Hess
1   Department of Orthopedic and Trauma Surgery, Kantonsspital Frauenfeld, Frauenfeld, Switzerland
,
Reto Sutter
2   Department of Radiology, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
,
Ladislav Nagy
3   Department of Orthopedic and Hand Surgery, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
,
Andreas Schweizer
3   Department of Orthopedic and Hand Surgery, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
› Author Affiliations
Further Information

Publication History

18 November 2015

11 December 2015

Publication Date:
15 January 2016 (online)

Abstract

Purpose Patients with symptomatic instability of the distal radioulnar joint (DRUJ) after traumatic complete disruption of the triangular fibrocartilage complex (TFC) are best treated by anatomic reconstruction of the TFC. Postoperative clinical results from the literature are known but the improvement of DRUJ instability remains still challenging to quantify. We recently published a reliable and validated method to measure the instability of the DRUJ. This sonographic method was used to quantify the pre- and postoperative instability in correlation with clinical outcome in patients with complete TFC disruption.

Methods 11 patients with complete disruption of the TFC resulting in symptomatic instability of the DRUJ underwent open reconstruction of the TFC. The instability was measured with sonography preoperatively and one year postoperatively including the Patient-Rated Wrist Evaluation score (PRWE Score).

Results By subjective measurement, 9 patients showed comparable stability to the contralateral side. By objective measurements, DRUJ stability was completely restored in 6 patients. Seven patients had a very good and good clinical outcome. The dorsovolar shift (preoperative mean 5.2mm, min 2.4, max 7.1; postoperative 3.6mm, min 1.2, max 6.2) was significantly decreased (p < 0.05) and was postoperatively not different to the contralateral healthy side (p > 0.1). PRWE score in the 1 year follow up was 13.8. Three patients remained with significant pain, sonographically two of them were still more lax and one tighter compared to the contralateral side.

Conclusions The sonographic measurement technique allows evaluation of the stability pre- and postoperatively and does not always correlate with the qualitative clinical assessment. The described operation technique is effective for treatment of irreplaceable TFC ruptures and significantly improves the DRUJ stability and wrist function one year after surgery, which could be quantified objectively by ultrasound.

 
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