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Anterior Capsular Reconstruction for Irreparable Subscapularis Tears.

ABSTRACT: Chronic anterior shoulder instability due to structural failure of the subscapularis muscle and the anterior capsule is a rare and challenging diagnosis for surgeons to manage because poor-quality capsular, labral, and rotator cuff tissue often limits effective treatment options. If primary repair is not possible because of retraction and poor tissue quality, reconstruction with an allograft or autograft may be the only joint-preserving option. The purpose of this article is to describe a surgical technique for anterior capsular reconstruction using a human acellular dermal allograft for the treatment of irreparable subscapularis tears.

SUBMITTER: Pogorzelski J

PROVIDER: S-EPMC5621111 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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Anterior Capsular Reconstruction for Irreparable Subscapularis Tears.

Pogorzelski Jonas J Hussain Zaamin B ZB Lebus George F GF Fritz Erik M EM Millett Peter J PJ

Arthroscopy techniques 20170703 4

Chronic anterior shoulder instability due to structural failure of the subscapularis muscle and the anterior capsule is a rare and challenging diagnosis for surgeons to manage because poor-quality capsular, labral, and rotator cuff tissue often limits effective treatment options. If primary repair is not possible because of retraction and poor tissue quality, reconstruction with an allograft or autograft may be the only joint-preserving option. The purpose of this article is to describe a surgic ...[more]

PMID: 28970978

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Anterior Capsule Reconstruction for Irreparable Subscapularis Tears.

Project description:A subscapularis complete tear presents its own challenges in management. The glenohumeral biomechanics and force couple are reliant on a competent and functioning subscapularis muscle. An irreparable subscapularis makes those same challenges even more difficult to address. Traditionally, this problem has been addressed with tendon transfers, including pectoralis major or latissimus dorsi. These techniques can alter the ideal biomechanics of the shoulder and have high rates or failure. Iliotibial autograft or tibialis anterior have also been wrought with high failure rates. Recently, the superior capsular reconstruction has been described for irreparable tears of the supraspinatus and infraspinatus. Theoretically, this procedure can act as a check rein against subluxation, and may serve to reconnect the force couples of the rotator cuff. Anterior escape may represent a similar challenge when the irreparable rotator cuff tendon is the subscapularis. To address this, we describe an open anterior capsule reconstruction technique with an acellular dermal graft. We theorize that this procedure may serve in a similar capacity to its superior capsular counterpart.

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Arthroscopic Single-Row Superior Capsular Reconstruction for Irreparable Rotator Cuff Tears.

Project description:Massive, irreparable rotator cuff tears are challenging to manage. Often, these tears are not amenable to primary repair and necessitate additional treatment options. This is especially true in patients with absent glenohumeral arthritis in the setting of a massive, irreparable rotator cuff tear. Superior capsular reconstruction (SCR), originally described by Mihata using a fascia lata autograft, has grown in popularity for the treatment of irreparable rotator cuff tears as a salvage option with good clinical outcomes. More recently, SCR techniques have been described using dermal allograft. Biomechanical studies and reported clinical series show promising results, with favorable postoperative clinical outcomes. The procedure, however, may be technically challenging, especially when performed using an all-arthroscopic technique. This article describes an all-arthroscopic technique using a predetermined graft size, unique medial fixation to ease graft passage, and knotless single-row lateral fixation to optimize suture management and efficiency.

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Technical Guide and Tips to Anterior Arthroscopic Latissimus Dorsi Transfer for Irreparable Subscapularis Tears.

Project description:In young patients, irreparable subscapularis tears can be managed by latissimus dorsi (LD) transfer on the lesser tuberosity. We provide a technical guide for isolated LD anterior transfer. The surgical procedure begins with glenohumeral exploration and release of the remaining subscapularis. Then, we dissect the LD tendon below the subscapularis. At the upper and inferior borders, we dissect the LD from the teres major, protecting the radial nerve anteriorly and inferiorly. Next, we detach the LD. Inferiorly, we cut the aponeurotic expansion for the triceps. A Foley catheter is used as a shuttle relay, anterior to the axillary nerve and medial and posterior to the radial nerve. We continue with an open dissection of the LD, posterior to the axillary fossa, to release the LD from the skin and tip of the scapula. The LD is transferred on the lesser tuberosity after retrieved by the Foley catheter, with care taken not to twist the tendon. It is fixed with 2 lateral anchors and 1 medial anchor. A shoulder brace is worn for 6 weeks. Physiotherapy begins thereafter.

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Arthroscopic Superior Capsular Reconstruction for Treatment of Massive Irreparable Rotator Cuff Tears.

Project description:Massive irreparable rotator cuff tears have been troublesome entities to treat, especially in younger patients. Few good options exist, leaving most patients in recent years receiving a reverse total shoulder arthroplasty. Reverse shoulder arthroplasty carries serious risks, a limited lifespan, and no other viable options should it fail. Recent biomechanical studies have shown that the superior capsule is critical to containing the glenohumeral joint reduced, allowing the larger muscles like the deltoid and pectoralis major to function properly. The superior capsular reconstruction is an anatomic reconstruction of the superior capsule to restore the normal restraint to superior translation that occurs with a deficient rotator cuff. The technique described in this article is an arthroscopic reconstruction of the superior capsule with dermal allograft.

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Arthroscopy-Assisted Latissimus Dorsi Transfer for Irreparable Subscapularis Tears.

Project description:Irreparable tears of the subscapularis (SS) tendon are difficult to manage and represent a challenge for the surgeon, especially in young and active patients. They are associated with a horizontal imbalance of the shoulder, causing pain and limitation of active internal rotation. Historically, the alternative for these patients has been transfer of the pectoralis major, with all its variations, total or partial, up or under the conjoint tendon. However, this transfer has mechanical disadvantages, especially related to the vector of traction, because it originates in the anterior region of the chest. In 2013, Elhassan and colleagues demonstrated in cadavers the technical feasibility and neurological safety of performing transfers of the latissimus dorsi (LD) to the lesser tuberosity to reconstruct irreparable lesions of the subscapularis. This option, compared with alternatives, has superior biomechanical advantages such as a similar vector of traction, originating from lower and posterior to the thorax, in addition to involving a synergistic muscle in action. In early 2016, Kany and colleagues first published a study of 5 patients undergoing arthroscopic assisted LD to SS transfer, with promising results. Our purpose is to present an arthroscopically assisted latissimus dorsi transfer technique in patients with irreparable subscapularis rupture.

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Arthroscopic Superior Capsular Reconstruction Using "Sandwich" Patch Technique for Irreparable Rotator Cuff Tears.

Project description:The technique of superior capsular reconstruction (SCR) using fascia lata autograft, described by Mihata et al. in 2012, has been an acceptable and effective method for treating irreparable massive rotator cuff tears, especially in cases with severe fatty infiltration and tendon retraction. After the SCR procedure of Mihata et al., it was found that some graft failure occurred with thinning and elongation during the follow-up time, which was called graft "creep." To avoid graft creep and reduce graft failure rates after SCR, we created an arthroscopic SCR technique with a "sandwich" patch augmented with polyethylene terephthalate scaffold interspaced between 2 folded layers of fascia lata autograft.

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Arthroscopic Superior Capsular Reconstruction With Acellular Porcine Dermal Xenograft for the Treatment of Massive Irreparable Rotator Cuff Tears.

Project description:Purpose:To evaluate the short-term clinical outcomes and the complications related to arthroscopic superior capsular reconstruction (SCR) with acellular porcine dermal xenograft for the treatment of irreparable massive rotator cuff tears. Methods:A prospective observational study of patients treated with arthroscopic SCR for irreparable massive rotator cuff tears in the period from 2016 to 2017 was performed. Range of motion and Shoulder Pain and Disability Index (SPADI) scores were assessed preoperatively, at 6 months postoperatively, and at 12 months postoperatively. Results:A total of 20 shoulders in 19 patients, with an average age of 60 years, were included in the study. Twelve patients met the criterion for the minimal clinically important difference in the SPADI score. The mean SPADI score showed significant improvement from 51.3% to 10.4% at 1-year follow-up. Active abduction improved from 65.4° to 149.3° and active forward flexion improved from 68.6° to 151.4° at 1-year follow-up. The procedure had a 30% complication rate, including a 15% rate of immunologic rejection of the xenograft. Five patients underwent revision procedures, including arthroscopic debridement and removal of xenograft residuals, implantation of a balloon spacer, and revision SCR with a fascia lata autograft. Conclusions:Arthroscopic SCR with an acellular porcine dermal xenograft led to a successful outcome in 60% of cases. The procedure showed a quite high complication rate; the most severe cases were related to acute immunologic rejection of the xenograft. Level of Evidence:Level IV, case series.

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Anterior Capsular Reconstruction With Proximal Biceps Tendon for Large to Massive Rotator Cuff Tears.

Project description:Massive rotator cuff tears (RCT) have traditionally been a challenging clinical problem for shoulder surgeons. A broad variety of treatment options have been proposed to address this problem, but outcomes have been as variable as the techniques themselves. Superior capsular reconstruction has been presented as a way to restore the restraining effect of the superior joint capsule and balanced force couples in massive tears of the superior rotator cuff. The purpose of this article is to propose a technical modification of the superior capsular reconstruction in large to massive RCT, and, especially in anterior L-shaped RCT, using the long head of the biceps tendon autograft to reinforce the weakest area of the anterior capsule, not as an augmentation of the rotator cuff, but as a static stabilizer of the humeral head, allowing the rotator cuff repair to heal without tension.

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Arthroscopic Superior Capsule Reconstruction for Irreparable Rotator Cuff Tears.

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Arthroscopic Superior Capsular Reconstruction for Massive Irreparable Rotator Cuff Repair.

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