Dataset Information

The Combined "Double-Pulley" Simple Knot Technique for Arthroscopic Transtendon Fixation of Partial Articular-Sided Tear of the Subscapularis Tendon.

ABSTRACT: Subscapularis tendon tears occur more frequently than previously suspected. Most subscapularis tendon tears are partial tears that have the potential to progress to complete tears. Repairs of partial tears of the tendon are performed to preserve normal shoulder function. This report describes a combined transtendon double-pulley and simple knot technique for repair of partial articular tears of the subscapularis tendon. This technique incorporates the advantages of transtendon repair, the double-pulley technique, and simple knot fixation.

SUBMITTER: Parnes N

PROVIDER: S-EPMC4886038 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature

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The Combined "Double-Pulley" Simple Knot Technique for Arthroscopic Transtendon Fixation of Partial Articular-Sided Tear of the Subscapularis Tendon.

Parnes Nata N Carey Paul P Ciani Mario M Morman Monica M

Arthroscopy techniques 20160222 1

Subscapularis tendon tears occur more frequently than previously suspected. Most subscapularis tendon tears are partial tears that have the potential to progress to complete tears. Repairs of partial tears of the tendon are performed to preserve normal shoulder function. This report describes a combined transtendon double-pulley and simple knot technique for repair of partial articular tears of the subscapularis tendon. This technique incorporates the advantages of transtendon repair, the double ...[more]

PMID: 27274450

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Project description:In the presence of bone loss, the Bristow or Latarjet procedure is used to alleviate anterior glenohumeral instability. The techniques have gradually improved under arthroscopy. However, such an arthroscopic procedure has a steep learning curve, lengthy operation time, and considerable risk of complications, inhibiting its rapid development. The current method of modified arthroscopic Bristow procedure with screw fixation without subscapularis split reduces surgical time, reduces the risk of nerve damage consequences, and is simple to apply. Technique Video Video 1 We present our modified arthroscopic Bristow procedure: screw fixation without subscapularis split. The patient is placed in the beach-chair position, and 5 portals are created. After performing a diagnostic arthroscopy examination, the coracoid process lower surface, tip, and base, and the conjoined tendon are identified. The soft tissue lateral to the conjoined tendon is released to a sufficient length to allow transferring the coracoid process. The coracoacromial ligament is excised at its coracoid insertion to expose its lateral and upper surfaces. Subsequently, the pectoralis minor muscle is released from the coracoid to ∼5 cm below the junctions between the pectoralis minor muscle and the conjoined tendon to ensure the transfer of the coracoid process will not be affected. A 1.2-mm K-wire is drilled into the coracoid under the guidance of a thin cannula. A PDS line is passed through the bone tunnel for traction and guidance. After ensuring an adequate length of the coracoid bone, it is osteotomized with a willow saw. Subsequently, the labrum and capsule are detached completely from the glenoid to the 6-o’clock position. The glenoid is refreshed by a burr. The upper edge of the subscapularis is pressed downwards by a switching stick until the 4-o’clock position of the anterior glenoid is exposed. A marking point is placed to assist in creating a tunnel at the 4-o’clock position. After drilling and measuring, a 1.2-mm K-wire is inserted into the tunnel to guide the screw. The coracoid is pulled out through portal D, its length is measured, and its osteotomy surface is trimmed to match the anterior glenoid surface. A hole is drilled from the center of the osteotomy surface to the tip of the coracoid with a 1.2-mm K-wire. The hole created by the 1.2-mm K-wire is drilled through with a 2.7-mm hollow drill. A cannulated screw with a diameter of 4 mm is implanted into the coracoid graft along the 1.2-mm K-wire, leaving 2 mm of the screw head above the osteotomy surface for the coracoid's final fixation. The lateral edge of the conjoined tendon is sutured with No. 2 ETHIBOND suture near the coracoid and kept sufficiently taut to prevent twisting during coracoid fixation. The coracoid with partial screw fixation is then inserted for the final fixation. The tip of the screw is positioned against the K-wire introduced through the glenoid tunnel in the previous phase. The K-wire is threaded through the screw, and the coracoid and screw are secured with a screwdriver. The final placement of the transferred coracoid is arthroscopically assessed through portal B. The postoperative anteroposterior radiograph shows that a single screw maintains the coracoid in place. The 3-dimensional computed tomography scan depicts the locations of the graft and screw. The transferred coracoid is seen at the 4-o’clock position, and the glenoid surface is well integrated with the coracoid graft’s surface. The scan also shows that the transferred coracoid is standing on the glenoid surface with a 90° rotation. (PDS, polydioxanone.).

Dataset Information

The Combined "Double-Pulley" Simple Knot Technique for Arthroscopic Transtendon Fixation of Partial Articular-Sided Tear of the Subscapularis Tendon.

Publications

The Combined "Double-Pulley" Simple Knot Technique for Arthroscopic Transtendon Fixation of Partial Articular-Sided Tear of the Subscapularis Tendon.

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