Purpose
To evaluate the outcomes of “tent form” triangular fibrocartilage complex (TFCC) repair
combined with dorsal distal radioulnar joint (DRUJ) capsule imbrication for posttraumatic
chronic DRUJ instability.
Methods
All patients treated with arthroscopic “tent form” TFCC repair and DRUJ capsule imbrication
from 2016 to 2019 were retrospectively reviewed. The inclusion criteria were symptomatic
chronic DRUJ instability for >6 months and dorsal DRUJ subluxation on magnetic resonance
imaging. The Disabilities of the Arm, Shoulder, and Hand score, Patient-Rated Wrist
Evaluation, grip strength, Modified Mayo Wrist Score, range of motion, and distal
radioulnar joint stability were assessed for a minimum of 2 years postoperatively.
Results
Thirty-eight patients were included in the final analysis. The average follow-up duration
was 35.6 months (range, 24-48 months). The 24-month postoperative grip strengths and
3-dimensional motions of wrist were not significantly different from that of the nonoperated
wrist. Compared with their preoperative status, Disabilities of the Arm, Shoulder,
and Hand score, Patient-Rated Wrist Evaluation, and Modified Mayo Wrist Score indicated
the significant improvement with P values of .001, .001, and .002, respectively.
Conclusions
In chronic DRUJ instability with a loosening dorsal capsule, “tent form” TFCC transcapsular
repair combined with DRUJ capsule imbrication restored the integrity of TFCC and dorsal
DRUJ capsule and achieved a promising outcome. We recommend this procedure as an option
of treatment for patients with posttraumatic chronic DRUJ instability.
Level of Evidence
IV, case series.
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Article Info
Publication History
Published online: January 15, 2022
Accepted:
January 6,
2022
Received:
August 11,
2021
Footnotes
The authors report that they have no conflicts of interest in the authorship and publication of this article. Full ICMJE author disclosure forms are available for this article online, as supplementary material.
Chen-Wei Yeh and Cheng-En Hsu contributed equally to this article.
Identification
Copyright
© 2022 by the Arthroscopy Association of North America