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Peroneal tendon dislocation (PTD) is sometimes diagnosed as a sports-related injury, of which many cases lead to recurrent PTD (RPTD). Superior retinaculum repair is the major operative treatment of RPTD. The technique described herein comprises 8 steps: (1) Standard tendoscopic examination, (2) debridement of the pseudo-pouch base, (3) first anchor insertion, (4) suture relay, (5) second anchor insertion and suture relay, (6) third anchor insertion and suture relay, (7) suture tightening, and (8) suture bridge. Although this tendoscopic peroneal retinaculum repair technique is complicated, expensive, and requires a longer operation time, it incorporates a double-row suture bridge. Therefore, it has a wider contact surface between the superior retinaculum repair and fibula bone and tighter fixation than does a single-row technique. Moreover, our technique is knotless and thereby avoids knot-related complications. Tendoscopy has additional advantages in terms of less postoperative pain, fewer complications, and better cosmesis. In conclusion, this knotless tendoscopic peroneal retinaculum repair technique for RPTD is a patient-friendly surgery compared with previous procedures.

Lateral ankle sprains are very common injuries that sometimes lead to chronic lateral ankle instability. The modified Broström operation is the gold standard procedure for treatment of chronic lateral ankle instability. Currently, this operation is performed arthroscopically. Broström repair depends on the quality of the remnant ligament. In cases with an insufficient remnant ligament, Gould augmentation or reconstruction using the gracilis tendon is generally performed. Recently, tape augmentation (internal brace) also has been used to support an insufficient ligament. This article introduces arthroscopic tape augmentation with arthroscopic modified Broström operation. This technique consists of creation of a talar anchor hole and fibular anchor hole, reattachment of the remnant ligament to the fibula with tape, and tape fixation to the talus. This technique uses only one knotless anchor screwed to the fibula for both the modified Broström operation and fixation of the tape. This technique is relatively simple and produces similar results as an open procedure., Technique Video Video 1 This video demonstrates each step of the arthroscopic internal brace augmentation with arthroscopic modified Broström operation. The procedure is performed with the patient in the supine position. The patient's leg is placed on the leg holder, and the hip and knee joints are flexed to about 45°. For creation of the talar anchor hole, the viewing portal and working portal are the anteromedial and accessory anterolateral portals, respectively. For the other procedures, the viewing and working portals are the anterolateral and accessory anterolateral portals, respectively. Surgical steps consist of creation of the talar anchor hole (1:19-1:41), creation of the fibular anchor hole (1:41-1:54), suture lasso using an 18-G needle and 2-0 PROLENE (1:54-2:09), suture relay from the 2-0 PROLENE to a tape (2:09-2:17), grasping of the ATFL and CFL complex by the tape (2:17-2:35), suture lasso insertion for the artificial ligament (2:36-2:45), insertion of the anchor into the fibula with an artificial ligament and tape (2:46-3:15), suture relay from the 2-0 PROLENE to the artificial ligament (3:20-3:28), and insertion of the knotless anchor into the talus (3:35-3:55). (ATFL, anterior talofibular ligament; CFL, calcaneofibular ligament.)

Longitudinal flexor hallucis longus (FHL) tendon tears are sometimes complicated by posterior ankle impingement syndrome (PAIS), especially in ballet dancers. In recent years, PAIS has been treated endoscopically, but it is difficult to suture FHL tendon tears endoscopically. In this report, we describe how to suture the FHL tendon endoscopically with the Meniscal Viper Repair system (Arthrex, Naples, FL). Without our endoscopic technique, when a patient is found to have a longitudinal tear of the FHL under endoscopy, we must choose to either neglect the tear or convert to an open repair. Open tendon suture techniques have reportedly had relatively good results but require a longer skin incision than endoscopic surgery for PAIS. Compared with the open repair, the advantages of our technique include earlier recovery, less pain, a lower rate of soft tissue complications, and improved healing through better preservation of the blood supply. This technique is an attractive and useful option because it is an easy and safe method for longitudinal FHL tendon tears.

Traumatic dislocation of peroneal tendons in the ankle is an uncommon lesion that mainly affects young adults. Unfortunately, most cases lead to recurrent dislocation of the peroneal tendons of the ankle (RPTD). Therefore, most cases need operative treatment. One of the most common operative procedures is superior peroneal retinaculum (SPR) repair. Recently, surgery for RPTD has been achieved with less invasive arthroscopic procedures. In this article, tendoscopic surgery for RPTD using a double-row suture bridge technique is introduced. This technique consists of debridement of the lateral aspect of the fibula under an intrasheath pseudo-cavity, suture anchor insertion into the fibular ridge, and reattachment of the SPR to the fibula using a knotless anchor screwed into the lateral aspect of the fibula. This technique mimics the double-row suture bridge technique for rotator cuff tear repair. The double-row suture bridge technique requires more surgical steps than the single-row technique, but it provides a wider bone-SPR contact surface and tighter fixation than the single-row technique. This procedure is an attractive option because it is less invasive and has achieved results similar to open procedures.