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      A clinicoradiological classification and a treatment algorithm for traumatic triceps tendon avulsion in adults

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          Abstract

          Purpose

          Triceps tendon avulsion (TTA) is an uncommon injury, and there are no classifications or treatment guidelines available. This study aims to describe a clinicoradiological classification and treatment algorithm for traumatic TTA in adults. The functional outcome of surgical repair has been evaluated too.

          Methods

          A retrospective analysis of adult patients with traumatic TTA treated in our institution between January 2012 and December 2017 was done. We only included complete TTA injuries. Children below 15 years, with open injuries, associated fractures, or partial TTA were excluded. The data were obtained from hospital records. The intraoperative findings were correlated with the clinicoradiological presentation for classifying TTA. The functional outcome was analyzed using the Mayo Elbow Performance index and Hospital for Special Surgery elbow score. ANOVA test was used to assess the statistical significance.

          Results

          There were 15 patients included, 11 males and 4 females. The mean age was (31.5 ± 9.15) years, and the mean follow-up was (22.4 ± 8.4) months. Fall on outstretched hand was the mode of injury. In 6 patients, diagnosis was missed on the initial visit. TTA were classified as Type I: palpable soft-tissue defect without bony mass; Type II: palpable soft-tissue defect with a wafer-thin/comminuted bony fragment on X-ray; Type III: palpable soft-tissue defect with a bony mass and a large bony fragment on X-ray without extension to the articular surface; and Type IV: an olecranon fracture with less than 25% of the articular surface. An algorithm for treatment was recommended, i.e. transosseous suture repair/suture anchor for Type I, transosseous suture repair for Type II, and tension band wiring or steel wire sutures for Types III and IV. All the patients achieved good to excellent outcome: the mean Mayo Elbow Performance index was 100 and Hospital for Special Surgery score was 98.26 ± 2.60 on final follow-up.

          Conclusion

          Our clinicoradiological classification and treatment algorithm for TTAs is simple. Surgical treatment results in excellent functions of the elbow. Since it is a single-center study involving a very small number of cases, a multicenter study with a larger number of patients is required for external validation of our classification and treatment recommendations.

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          Most cited references24

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          Distal biceps tendon ruptures: incidence, demographics, and the effect of smoking.

          The purpose of the current study was to determine the incidence of distal biceps tendon ruptures within a defined population, to describe the demographics of affected individuals, and to identify potential risk factors. The healthcare system in this study provides care to a known number of members in an area defined by zip codes and proximity to the medical center. Medical records for all members who presented with injuries about the elbow during a 5-year period were reviewed. Thirteen men and one woman with an average age of 47 years comprised the study population. The dominant extremity was involved in 86% of patients. All patients described a mechanism involving excessive eccentric tension as the arm was forced from a flexed position. The incidence of injury in the membership population averaged 1.2 ruptures per 100,000 patients per year. Forty-three percent reported regular tobacco use, whereas only 9% of all members were smokers. A Poisson regression analysis revealed a 7.5 times greater risk of distal biceps tendon rupture in patients who smoke. The incidence of distal biceps tendon ruptures is 1.2 per 100,000 patients, with the majority in the dominant elbow of men who smoke and who are in their fourth decade of life.
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            Surgical treatment of distal triceps ruptures.

            Distal triceps tendon ruptures occur rarely, and the diagnosis is often missed when the injury is acute. The literature provides little guidance regarding treatment or the outcome of treatment of these injuries. The goal of this report was to present our experience with the diagnosis, timing and technique of surgical treatment, and outcome of treatment of distal triceps tendon ruptures in twenty-two patients. None of the ruptures followed joint replacement. Twenty-three procedures were performed in twenty-two patients with an average age of forty-seven years. The average duration of follow-up was ninety-three months (range, seven to 264 months). Data were obtained by a retrospective review of records and radiographs before and after surgery. Also, thirteen patients returned for follow-up and were examined clinically. Six additional patients responded to a telephone questionnaire. One patient was lost to follow-up, and two had died. Formal biomechanical evaluation of isokinetic strength and isokinetic work was performed in eight patients, at an average of eighty-eight months after surgery. Isokinetic strength data were available from the charts of two additional patients. Ten of the triceps tendon ruptures were initially misdiagnosed. At the time of diagnosis, triceps weakness with a decreased active range of motion was found in most patients, and a palpable defect in the tendon was noted after sixteen ruptures. Operative findings revealed a complete tendon rupture in eight cases and partial injuries in fifteen. Fourteen primary repairs and nine reconstructions of various types were performed. Three of the primary repairs were followed by rerupture. At the time of follow-up, the range of elbow motion averaged 10 degrees to 136 degrees. All but two elbows had a functional range of motion; however, the lack of a functional range in the two elbows was probably due to posttraumatic arthritis and not to the triceps tendon rupture. Triceps strength was noted to be 4/5 or 5/5 on manual testing in all examined subjects. Isokinetic testing of ten patients showed that peak strength was, on the average, 82% of that of the untreated extremity. Testing showed the average endurance of the involved extremity to be 99% of that of the uninvolved arm. The results after repair and reconstruction were comparable, but the patients' recovery was slower after reconstruction. The diagnosis of distal triceps tendon rupture is often missed when the injury is acute because of swelling and pain. Primary repair of the ruptured tendon is always possible when it is performed within three weeks after the injury. When the diagnosis is in doubt immediately after an injury, the patient should be followed closely and should be reexamined after the swelling and pain have diminished so that treatment can be instituted before the end of this three-week period. Reconstruction of the tendon is a much more complex, challenging procedure, and the postoperative recovery is slower. Thus, we believe that early surgical repair, within three weeks after the injury, is the treatment of choice for distal triceps tendon ruptures. of evidence.
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              The distal triceps tendon footprint and a biomechanical analysis of 3 repair techniques.

              Anatomic repair of tendon ruptures is an important goal of surgical treatment. There are limited data on the triceps brachii insertion, footprint, and anatomic reconstruction of the distal triceps tendon. An anatomic repair of distal triceps tendon ruptures more closely imitates the preinjury anatomy and may result in a more durable repair. Descriptive and controlled laboratory studies. The triceps tendon footprint was measured in 27 cadaveric elbows, and a distal tendon rupture was created. Elbows were randomly assigned to 1 of 3 repair groups: cruciate repair group, suture anchor group, and anatomic repair group. Biomechanical measurement of load at yield and peak load were measured. Cyclic loading was performed for a total of 1500 cycles and displacement measured. The average bony footprint of the triceps tendon was 466 mm2. Cyclic loading of tendons from the 3 repair types demonstrated that the anatomic repair produced the least amount of displacement when compared with the other repair types (P .05). The triceps bony footprint is a large area on the olecranon that should be considered when repairing distal triceps tendon ruptures. Anatomic repair of triceps tendon ruptures demonstrated the most anatomic restoration of distal triceps ruptures and showed statistically significantly less repair-site motion when cyclically loaded. Anatomic repair better restores preinjury anatomy compared with other types of repairs and demonstrates less repair-site motion, which may play a role in early postoperative management.
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                Author and article information

                Contributors
                Journal
                Chin J Traumatol
                Chin J Traumatol
                Chinese Journal of Traumatology
                Elsevier
                1008-1275
                1008-1275
                27 February 2021
                September 2021
                27 February 2021
                : 24
                : 5
                : 266-272
                Affiliations
                [a ]Department of Orthopedics, Govt. Medical College, Kozhikkode, 673008, Kerala, India
                [b ]Department of Arthroscopy, Ganga Hospital, Coimbatore, 641043, Tamilnadu, India
                Author notes
                []Corresponding author. Department of Orthopedics, Govt. Medical College, Kozhikkode, 673008, Kerala, India. balaji.zacharia@ 123456gmail.com
                Article
                S1008-1275(21)00031-6
                10.1016/j.cjtee.2021.02.008
                8563844
                33941433
                bc1af0b5-23ce-432e-9930-bc561985c7bc
                © 2021 Chinese Medical Association. Production and hosting by Elsevier B.V.

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 13 June 2020
                : 8 January 2021
                : 9 February 2021
                Categories
                Original Article

                wounds and injuries,triceps tendon avulsion,injuries around elbow,classification of triceps avulsion,treatment algorithm

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