Case Series of All-Arthroscopic Treatment for Terrible Triad of the Elbow: Indications and Clinical Outcomes.

Arthroscopy

Department of Orthopedic Surgery, Wonkwang University Hospital, Iksan, Republic of Korea. Electronic address:

Published: February 2020

Purpose: To evaluate the results of all-arthroscopic treatment of the terrible triad of the elbow, a combination of elbow dislocation, radial head dislocation, and coronoid process fracture, and its complications.

Methods: We performed a retrospective review of consecutive patients with terrible triad who underwent all-arthroscopic treatment between January 2011 and December 2016. All-arthroscopic treatment was performed in the unstable elbows after manual reduction. Clinical evaluation was performed at least 2 years postoperatively. Patients with another fracture in the upper extremity and previous fracture of the affected elbow were excluded. A radial head fracture that was stable enough to reduce or involved less than 25% of the articular surface for partial excision and Regan-Morrey classification type I and type II coronoid process fractures were treated arthroscopically. Range of motion, radiologic outcomes, surgical complications, and the Mayo Elbow Performance Score were evaluated at the final follow-up. The Mann-Whitney test was used for statistical analysis.

Results: A total of 24 patients met the inclusion criteria, and the average age was 47.6 years. Coronoid process fractures were fixed in all patients, by use of Kirschner wires in 15 (62.5%) and pullout sutures in 9 (37.5%). Radial head fractures were treated using screw or K-wire fixation in 4 patients (16.7%); only the fragment of the fracture was resected in 11 patients (45.8%). In all 24 cases (100%), the lateral collateral ligaments were repaired. At the final follow-up, the mean flexion contracture angle was 4.8° ± 1.1° and the mean flexion angle was 132.5° ± 6.3°. Clinical scores were satisfactory, with a mean Mayo Elbow Performance Score of 93 points. However, nonunion of coronoid fractures was observed in 4 patients (16.7%). There was 1 case of pin-site irritation.

Conclusions: All-arthroscopic treatment for the terrible triad can provide an excellent safety profile without the need for a large incision if the indications are met.

Level Of Evidence: Level IV, therapeutic case series.

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Source
http://dx.doi.org/10.1016/j.arthro.2019.09.014DOI Listing

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Article Synopsis
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  • It compares two groups: one treated with conservative or arthroscopic fixation of stable radial head fractures, and the other with arthroscopic partial excision of unstable fractures.
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