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Arthroscopically Assisted Reconstruction of Acute Acromioclavicular Joint Dislocations: Anatomic AC Ligament Reconstruction With Protective Internal Bracing-The "AC-RecoBridge" Technique.

ABSTRACT: An arthroscopically assisted technique for the treatment of acute acromioclavicular joint dislocations is presented. This pathology-based procedure aims to achieve anatomic healing of both the acromioclavicular ligament complex (ACLC) and the coracoclavicular ligaments. First, the acromioclavicular joint is reduced anatomically under macroscopic and radiologic control and temporarily transfixed with a K-wire. A single-channel technique using 2 suture tapes provides secure coracoclavicular stabilization. The key step of the procedure consists of the anatomic repair of the ACLC ("AC-Reco"). Basically, we have observed 4 patterns of injury: clavicular-sided, acromial-sided, oblique, and midportion tears. Direct and/or transosseous ACLC repair is performed accordingly. Then, an X-configured acromioclavicular suture tape cerclage ("AC-Bridge") is applied under arthroscopic assistance to limit horizontal clavicular translation to a physiological extent. The AC-Bridge follows the principle of internal bracing and protects healing of the ACLC repair. The AC-Bridge is tightened on top of the repair, creating an additional suture-bridge effect and promoting anatomic ACLC healing. We refer to this combined technique of anatomic ACLC repair and protective internal bracing as the "AC-RecoBridge." A detailed stepwise description of the surgical technique, including indications, technical pearls and pitfalls, and potential complications, is given.

SUBMITTER: Izadpanah K

PROVIDER: S-EPMC4454896 | biostudies-other | 2015 Apr

REPOSITORIES: biostudies-other

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Arthroscopically Assisted Reconstruction of Acute Acromioclavicular Joint Dislocations: Anatomic AC Ligament Reconstruction With Protective Internal Bracing-The "AC-RecoBridge" Technique.

Izadpanah Kaywan K Jaeger Martin M Ogon Peter P Südkamp Norbert P NP Maier Dirk D

Arthroscopy techniques 20150413 2

An arthroscopically assisted technique for the treatment of acute acromioclavicular joint dislocations is presented. This pathology-based procedure aims to achieve anatomic healing of both the acromioclavicular ligament complex (ACLC) and the coracoclavicular ligaments. First, the acromioclavicular joint is reduced anatomically under macroscopic and radiologic control and temporarily transfixed with a K-wire. A single-channel technique using 2 suture tapes provides secure coracoclavicular stabil ...[more]

PMID: 26052493

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Project description:BackgroundThe long-term clinical and radiographic outcomes following coracoclavicular (CC) ligament reconstruction for the operative treatment of acute acromioclavicular (AC) joint dislocation remain uncertain. The purpose of the present study was to determine the long-term clinical and radiographic outcomes of CC ligament reconstruction and to identify risk factors for unfavorable outcomes.MethodsWe reviewed 20 cases of AC joint dislocation in 19 patients (18 male and 1 female; mean age, 32.3 years) that were treated with single-bundle reconstruction. The mean duration of follow-up was 12.7 years. We measured the CC vertical distance (CCD) on the anteroposterior view and compared the affected and unaffected sides (CCD ratio). We divided the patients into those with a CCD ratio of <25% (Group 1) and those with a CCD ratio of ≥25% (Group 2). We radiographically investigated the clavicular tunnel anteroposterior (CTAP) angle, clavicular tunnel ratio, and coracoid tunnel orientation on the basis of the entry and exit points at the base of the coracoid. For the coracoid tunnel orientation, we compared center-center orientation and noncenter-center orientation.ResultsGroup 1 comprised 17 cases (85%), and Group 2 comprised 3 cases (15%). At the time of the latest follow-up, Group 1 had a significantly higher mean Constant score than Group 2 (98.2 compared with 90.7; p = 0.038). Of the 3 radiographic parameters, only the CTAP angle was significantly different between the 2 groups (p < 0.0001). Two (67%) of the 3 cases in Group 2 were associated with posterior AC joint displacement.ConclusionsCC ligament reconstruction for the treatment of acute AC joint dislocation resulted in successful long-term clinical and radiographic outcomes. It is important to decrease the CTAP angle and to ensure proper anatomic placement of the clavicular and coracoid tunnels at the time of surgery.Level of evidenceTherapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Project description:Medial patellofemoral ligament (MPFL) reconstruction is a common procedure to address MPFL deficiency. Various techniques have been reported, with the best method still being pursued. Previous studies have revealed the advantage of internal bracing and possible advantage of wide patellar insertion in MPFL reconstruction. Thus, we would like to introduce a technique that combines the internal bracing and wide patellar insertion in MPFL reconstruction, in which the critical points are proper location of the patellar and femoral tunnels and proper tensioning of the augmenting sutures and the whole graft complex. Our clinical experience indicates that the proper application of this technique can lead to satisfactory clinical outcome. We consider the introduction of this technique will provide more insight to MPFL reconstruction. Technique Video Video 1 Wide patellar insertion medial patellofemoral ligament reconstruction with internal bracing. This procedure is performed in the left leg. The anterior half of the peroneus longus tendon is harvested. Both ends of the tendon are braided with nonabsorbable sutures. All parts of the knee are examined and debrided. The MPJ point on the medial edge of the patella is defined. A medial patellar incision is made over the MPJ (junction of the medial and proximal one-third). Two tunnels are created from the medial edge of the patella to the midline of the anterior surface of the patella. A longitudinal incision is made over the medial femoral epicondyle and the adductor tubercle. The femoral tunnel is located and created. Two guide sutures are passed though the patellar tunnels. The graft tendon along with 2 augmenting sutures are passed through the proximal tunnel and pulled back through the distal tunnel. Lateral retinaculum release is performed as indicated. The tendon and the augmenting sutures are pulled subcutaneously out of the medial incision. A cortical suspensory fixation device with an adjustable loop is passed through the femoral tunnel from the medial to the lateral side. Each tendon end, as well as the augmenting sutures are tied to the adjustable loop. A lateral incision is made. The sutures from the adjustable loop are pulled through the soft-tissue fissure resulting from the lateral retinaculum release out of the lateral incision. The cortical fixation device is pulled through the femoral tunnel till the tendon ends are pulled into the femoral tunnel. The arthroscope is placed to the lateral gutter of the knee though the anterolateral portal. The adjustable loop is reduced until the cortical fixation button is pulled back against the lateral orifice of the femoral tunnel. At 30? flexion of the knee, lateral displacement of the patella is checked to make sure that the medial stability of the patella is restored. (MPJ, medial–proximal junction.)

Dataset Information

Arthroscopically Assisted Reconstruction of Acute Acromioclavicular Joint Dislocations: Anatomic AC Ligament Reconstruction With Protective Internal Bracing-The "AC-RecoBridge" Technique.

Publications

Arthroscopically Assisted Reconstruction of Acute Acromioclavicular Joint Dislocations: Anatomic AC Ligament Reconstruction With Protective Internal Bracing-The "AC-RecoBridge" Technique.

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