Arthroscopic Knotless Peripheral Ulnar-Sided TFCC Repair

Advances in the Repair of Palmer type IB TFCC Injuries With Wrist Arthroscopy

The triangular fibrocartilage complex (TFCC) is essential for maintaining wrist stability. Injury-caused pain is the primary cause of ulnar wrist pain. The TFCC injury refractory to conservative treatment requires further surgical treatment, and because Palmer type IB tears belong to peripheral injuries due to their proximity to the blood supply area, arthroscopic suture repair has become the preferred surgical method for TFCC injury repair, exhibiting strong healing ability. This study reviewed the anatomy of TFCC, injury classification, and advances in arthroscopic suturing for treating Palmer type IB.

Open Foveal Repair of the Triangular Fibrocartilage Complex Tears Associated with Symptomatic Ulnar Styloid Non-union

Background: Symptomatic ulnar styloid non-union can be treated by excision of the ulnar styloid fragment. For combined triangular fibrocartilage complex (TFCC) tears, several repair techniques such as arthroscopic repair, open repair to the fracture site or reconstruction using a tendon graft have been introduced. This study reports the technique and outcomes of open foveal repair of the TFCC with excision of the ulnar styloid fragment in patients with symptomatic ulnar styloid non-union and distal radioulnar joint (DRUJ) instability. Methods: Consecutive patients with symptomatic ulnar styloid non-union with TFCC tears and DRUJ instability who underwent excision of the ulnar styloid fragment and open foveal repair of the TFCC were retrospectively reviewed. After excising the ulnar styloid fragment, a capsular window was created between the triquetrum and TFCC, followed by attaching the TFCC to the fovea using three sutures through a bone tunnel from the ulnar cortex to the fovea. Additional ulnar shortening osteotomies were performed in patients with positive ulnar variance and ulnar impaction test. The outcomes were evaluated in terms of DRUJ stability and the Quick Disabilities of the Arm, Shoulder and Hand (DASH) scores. Results: In total, 21 patients with a mean age of 40 were enrolled in the study. All patients demonstrated DRUJ stability at a mean follow-up duration of 14 months. The mean Quick DASH score significantly improved from 18.9 ± 11.7 to 2.5 ± 4.1 (p < 0.05). Eleven patients underwent combined ulnar shortening osteotomies, and no difference in the Quick DASH score was found between patients who underwent ulnar shortening osteotomy and those who did not. Conclusions: This study demonstrates that open foveal repair of the TFCC with ulnar styloid fragment excision is an effective strategy to surgically treat patients with symptomatic ulnar styloid non-union with TFCC tear and DRUJ instability. Level of Evidence: Level III (Therapeutic).

Open and Arthroscopic Triangular Fibrocartilage Complex (TFCC) Repair

Triangular fibrocartilage complex (TFCC) tears, whether acute or chronic, can result in persistent ulnar-sided wrist pain. Although diagnosis and nonsurgical management of TFCC tears is well described, there remains ongoing discussion about the optimal surgical technique, specifically open or arthroscopic. This article reviews the most up-to-date literature regarding TFCC injury including demographics, risk factors for TFCC injury, classification of acute and chronic TFCC tears, history and physical examination, appropriate diagnostic imaging, surgical indications, pertinent surgical anatomy, open and arthroscopic TFCC repair, fixation biomechanics and techniques, postoperative rehabilitation, and clinical outcomes.

All-arthroscopic repair of Atzei class II and III triangular fibrocartilage complex tears using the FasT-Fix suture device

Background

The study is aimed to propose an arthroscopic repair technique using a pre-tied suture device for peripheral TFCC (triangular fibrocartilage complex) tear with proximal component involvement.

Methods

Through a retrospective review in the medical records of patients who underwent unilateral arthroscopic repair for TFCC Palmer IB lesion between 2017 and 2019, 12 patients were arthroscopically diagnosed as proximal component tear and received more than 1 year follow-up postoperatively. The arthroscope was introduced from 6R portal to discriminate Atzei class II from III lesions by a “visualization test” and to supervise the repair procedure using pre-tied FasT-Fix suture device from 3-4 portal. Two poly-ether-ether-ketone (PEEK) blocks were further advanced along the device needle to finally seat outside the ulnar joint capsule, followed by gradually tightening the pre-tied suture loop until the TFCC periphery was securely repositioned and held stably.

Results

Operation time averaged 87 min. Hook test and DRUJ arthroscopy confirmed proximal component tear in all 12 wrists. Four patients were diagnosed to be Atzei class II lesion as full thickness tear of distal component was arthroscopically identified from 6R portal while the other 8 exhibited partial thickness tear and were categorized as class III lesion. Follow-up averaged 15 months with a range of 12 to 24 months. Mayo modified wrist score improved from an average of 61.3 preoperatively to 90.4 at the latest visit.

Conclusions

A modified technique for diagnosis and all-arthroscopic repair in TFCC Atzei class II and III lesions using a pre-tied suture device is a feasible and safe option with promising results.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13018-020-02046-1.

Surgical Repair of Acute TFCC Injury

Triangular fibrocartilage complex tears are a common source of ulnar-sided wrist pain and distal radioulnar joint instability. Symptoms recalcitrant to conservative management or injuries in high-demand athletes may indicate surgical management. Both open and arthroscopic techniques offer improvements in objective measures, patient-centered outcome scores, and return to work, but may be complicated by nerve irritation, persistent wrist instability, and pain. Recently developed knotless arthroscopic techniques are not well studied but may limit morbidity.

Arthroscopic Foveal Reattachment of the Triangular Fibro Cartilaginous Complex

Background  Foveal attachment of the triangular fibrocartilaginous complex (TFCC) is essential for distal radioulnar joint stability. Controversy still exists as to which is the best treatment in case of foveal lesions. Actual arthroscopic techniques either require mini open steps or are complex and expensive. We present a simple all inside knotless repair, providing a strong bony fixation in the fovea. Materials and Methods  Through 3-4 and 6R portals, the ulnar fovea is debrided and a wire is passed percutaneously through the TFCC to place a mattress suture at its free end. It is then reattached to the fovea with an impacted anchor. Retrospective Study  Between 2013 and 2016, a cohort of 5 patients presenting with isolated Palmer 1B, EWAS 2 lesions of the TFCC were operated on with this technique. Clinical evaluation was based on a compared measurement of the grip strength, pain on a visual analogic scale (VAS), different ranges of motion, and distal radioulnar joint (DRUJ) stability. We also used functional scores: Mayo modified wrist score (MMWS), Quick disability arm, shoulder and hand (DASH), and patient-related wrist evaluation (PRWE). The average follow-up was 29.4 months (range 9-42 months). Results  On postoperative evaluation, pain was reduced by 5 points (range 1-9) and grip strength averaged 94% of the unaffected side. Range of motion averaged 92% on the unaffected side. DRUJ instability was slight in 4 patients and mild in 1 patient. MMWS was excellent for 1, good for 1, and satisfactory for 3 patients. Quick Dash averaged 17.68 (range 0-38.6) compared with preoperative average of 59.48 (range 45-77) with an amelioration of 43 (range 34-57). PRWE averaged 20 (range 1-41.5) compared with preoperative average of 60.3 (range 33.5-76.5) with an amelioration of 41 (range 32-58). We reported no complications and particularly no lesions of the dorsal sensory branch of the ulnar nerve. Conclusions  We present a simple arthroscopic technique using a single suture anchor placed in the ulnar fovea. Repairs performed with this technique are simple and the results achieved seem to be similar to those obtained with conventional open or arthroscopic techniques, although further investigation with an increased number of patients and follow-up are required. It however became our first choice of treatment in European Wrist Arthroscopy Society (EWAS) 2 lesions of the TFCC.

Arthroscopic Trans-osseous Suture of Peripheral Triangular Fibrocartilage Complex Tear

The importance of foveal repair of the triangular fibrocartilage complex (TFCC) on stability of the distal radioulnar joint (DRUJ) has been emphasized with increasing knowledge of the anatomy and biomechanics of the TFCC and DRUJ. Although both open and arthroscopic techniques have been described for improving DRUJ stability, there has been a marked evolution of arthroscopic TFCC repair technique with successful clinical outcome. Recently, an arthroscopic trans-osseous technique has been described to repair foveal tears of the TFCC. The advantage of the technique is that it allows for anatomical repair of both the superficial and deep layers. This article describes the details of this novel technique.

Ulnar-sided wrist pain in the athlete (TFCC/DRUJ/ECU)

PURPOSE OF REVIEW

The goal of this manuscript is to review key historic and recent literature regarding extensor carpi ulnaris (ECU), triangular fibrocartilage complex (TFCC) and distal radioulnar joint (DRUJ) injuries, particularly in athletes.

RECENT FINDINGS

Many recent studies examining the ECU focus on clinical and radiographic diagnosis. Several physical exam findings are described in addition to the use of MRI and US. Imaging studies must be clinically correlated due to high incidence of findings in asymptomatic patients. In regard to the TFCC/DRUJ, there are numerous recent studies that support the use of MRA as an adjunctive diagnostic study. There are also a number of repair constructs that are described for the various different kinds of TFCC pathology reviewed here. In summary, there are a number of options for the diagnosis and treatment of ulnar-sided wrist pain. Patient factors, especially in the athletic population, must be taken into account when approaching any patient with these pathologies.