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      Clinical Outcome of Arthroscopic Remplissage as Augmentation During Arthroscopic Bankart Repair for Recurrent Anterior Shoulder Instability

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          Abstract

          Purpose:

          We aimed to assess functional outcomes and postoperative recurrence rate associated with the remplissage procedure used for bone augmentation with Bankart repair in patients with Hill-Sachs lesions after shoulder dislocation.

          Methods:

          Preoperative computed tomography was performed to check for bony Bankart lesions,calculate the bone defect rate, and estimate the risk for re-dislocation. Functional and clinical scores were assessed preoperatively and at three months, six months, and one year postoperatively.

          Results:

          Between 2011 and 2014, 18 patients (17 male; age at surgery, 29.0±10.4 years; 18 affected shoulders) underwent arthroscopic Bankart repair with arthroscopic remplissage (remplissage group), and 18 sex- and age-matched controls underwent arthroscopic Bankart repair alone (control group). The incidence of bony Bankart lesion and glenoid bone defect was significantly higher in the remplissage group. No complications, re-dislocation, or re-subluxation was noted during or after the operation. Postoperatively, the range of motion and muscular weakness alleviated with time, and the clinical scores improved significantly from the preoperative values. However, the remplissage group showed significantly restricted shoulder flexion, abduction, internal rotation and external rotation even at one year postoperatively. Compared to the control group, the remplissage group showed significantly lower Rowe scores preoperatively, and both Rowe scores and University of California-Los Angeles scale scores remained significantly lower throughout the one-year follow-up.

          Conclusion:

          Despite some restriction of external rotation, remplissage leads to better clinical scores and no recurrence, providing a valid means of augmentation for Bankart repair in high-risk patients with engaged Hill-Sachs lesion.

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          Most cited references25

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          Risk factors for recurrence of shoulder instability after arthroscopic Bankart repair.

          The higher failure rates reported with arthroscopic stabilization of traumatic, recurrent anterior shoulder instability compared with open stabilization remain a concern. The purpose of this study was to evaluate the outcomes of arthroscopic Bankart repairs with the use of suture anchors and to identify risk factors related to postoperative recurrence of shoulder instability. Ninety-one consecutive patients underwent arthroscopic stabilization for recurrent anterior traumatic shoulder instability. The mean age (and standard deviation) at the time of surgery was 26.4 +/- 5.4 years. Seventy-one patients were male. Seventy-nine patients were involved in sports (forty, in high-risk sports). Capsulolabral reattachment and capsule retensioning was performed with use of absorbable suture anchors (mean, 4.3 anchors; range, two to seven anchors). All patients were prospectively followed, and, at the time of the last review, the patients were examined and assessed functionally by independent observers. At a mean follow-up of thirty-six months, fourteen patients (15.3%) experienced recurrent instability: six sustained a frank dislocation and eight reported a subluxation. The mean delay to recurrence was 17.6 months. The risk of postoperative recurrence was significantly related to the presence of a bone defect, either on the glenoid side (a glenoid compression-fracture; p = 0.01) or on the humeral side (a large Hill-Sachs lesion; p = 0.05). By contrast, a glenoid separation-fracture was not associated with postoperative recurrent dislocation or subluxation. Recurrence of instability was significantly higher in patients with inferior shoulder hyperlaxity (p = 0.03) and/or anterior shoulder hyperlaxity (p = 0.01). On multivariate analysis, the presence of glenoid bone loss and inferior hyperlaxity led to a 75% recurrence rate (p < 0.001). Lastly, the number of suture-anchors was critical: patients who had three anchors or fewer were at higher risk for recurrent instability (p = 0.03). In the treatment of traumatic recurrent anterior shoulder instability, patients with bone loss or with shoulder hyperlaxity are at risk for recurrent instability after arthroscopic Bankart repair. At least four anchor points should be used to obtain secure shoulder stabilization.
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            Contact between the glenoid and the humeral head in abduction, external rotation, and horizontal extension: a new concept of glenoid track.

            To date, no anatomic or biomechanical studies have been conducted to clarify what size of a Hill-Sachs lesion needs to be treated. Nine fresh-frozen cadaveric shoulders were tested in a custom device. With the arm in maximum external rotation, horizontal extension, and 0 degrees, 30 degrees, and 60 degrees of abduction, the location of the entire rim of the glenoid was marked on the humeral head using a Kirschner wire. The distance from the contact area to the footprint of the rotator cuff with the arm in 60 degrees of abduction was measured by a digital caliper. With an increase in arm elevation, the glenoid contact shifted from the inferomedial to the superolateral portion of the posterior aspect of the humeral head, creating a zone of contact (glenoid track). The medial margin of the glenoid track was located 18.4 +/- 2.5 mm medial from the footprint, which was equivalent to 84% +/- 14% of the glenoid width. A Hill-Sachs lesion has a risk of engagement and dislocation if it extends medially over the medial margin of the glenoid track.
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              Short-term complications of the Latarjet procedure.

              Although the results of the Latarjet procedure have been reported previously, there is little literature regarding the early complications of this procedure. The purpose of this study was to report our experience with the Latarjet procedure for glenohumeral instability and to highlight the initial complications that may occur following this procedure. Forty-seven patients (forty-eight shoulders) underwent the Latarjet procedure for anterior glenohumeral instability between January 2005 and January 2010. All shoulders had some osseous deficiency of the anterior glenoid rim or had undergone an unsuccessful prior soft-tissue Bankart repair. The minimum duration of patient follow-up was six months. Forty-five shoulders were available for follow-up. The overall complication rate was 25% (twelve of the original forty-eight shoulders). Complications were divided into three groups: infection, recurrent glenohumeral instability, and neurologic injury. A superficial infection developed in three shoulders (6%); in all cases, the infection resolved following irrigation and debridement and administration of antibiotics for up to four weeks. Four shoulders (8%) developed recurrent glenohumeral instability; this occurred within eight months in two shoulders and at nineteen and forty-two months postoperatively in the other two. Five procedures (10%) resulted in a neurologic injury. Two of these involved the musculocutaneous nerve, one involved the radial nerve, and two involved the axillary nerve. The three musculocutaneous and radial nerve injuries involved sensory neurapraxia that resolved fully within two months. Both of the patients with axillary nerve dysfunction continued to have persistent sensory disturbances and one continued to have residual weakness that had not yet resolved fully at the time of the final follow-up. The overall complication rate of 25% is higher than that reported in the literature. Although most of these complications resolved completely, two patients continued to have residual neurologic symptoms. Patients should be informed of the risk of complications associated with the Latarjet procedure, although most of the potential complications will resolve.
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                Author and article information

                Journal
                Open Orthop J
                Open Orthop J
                TOORTHJ
                The Open Orthopaedics Journal
                Bentham Open
                1874-3250
                10 November 2017
                2017
                : 11
                : 1268-1276
                Affiliations
                [1 ]Gunma University Graduate School of Medicine - Orthopaedic Surgery, Maebashi, Gunma, Japan
                [2 ]St. Pierre Hospital - Orthopaedic Surgery, Takasaki, Gunma, Japan
                [3 ]Takasaki University of Health and Welfare - Physical Therapy, Takasaki, Gunma, Japan
                [4 ]National Hospital Organization Takasaki General Medical Center - Orthopaedic Surgery, Takasaki, Gunma, Japan
                Author notes
                [* ]Address correspondence to this author at the Gunma University Graduate School of Medicine - Orthopaedic Surgery, Maebashi, Gunma, Japan, Tel: +81-27-220-7111; Email: rmiyamoto47@ 123456gmail.com
                Article
                TOORTHJ-11-1268
                10.2174/1874325001711011268
                5721320
                29290865
                7d940833-25c5-4811-bdaf-ba989d098f1e
                © 2017 Miyamoto et al.

                This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 20 July 2017
                : 30 July 2017
                : 18 September 2017
                Categories
                Article

                Orthopedics
                shoulder instability,bankart lesion,hill-sachs lesion,bankart repair,remplissage,arthroscopic repair

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