Notes

Results of exogenous vitamin c around the mycelia development along with primordia enhancement regarding Pleurotus ostreatus.
Failure of a greater tuberosity fracture fixation with screws can lead to stiffness, pain, and weakness of the rotator cuff. Management of a previously performed open greater tuberosity fracture fixation with screws involves implant removal and refixation of the fragment. Doing this arthroscopically in a previously performed open surgery has its own challenges but distinct advantages. Describe herein is a technique for performing this revision surgery arthroscopically.The results of conservative treatment of displaced proximal humerus fractures are not satisfactory. Open reconstruction and rigid internal fixation, as well as arthroscopic-assisted reduction and internal fixation, are possible in selected cases, mostly young patients. Older patients with osteoporotic, comminuted bone accounts for 70% of the cases. We present an arthroscopic reduction and transosseous suture fixation technique for osteoporotic patients with displaced 2-part greater tuberosity fractures of the proximal humerus. learn more The technique reduces the upward and medially displaced greater tuberosity to its anatomic position and uses longitudinal, horizontal, or a mattress suture fixation as single or combined fixation (Natofix technique).Hip arthroscopy techniques have evolved to treat a wide range of extra-articular pathologies. Subspine impingement commonly occurs in femoroacetabular impingement, particularly in athletes with a high range of motion, patients with low degrees of femoral version, and those with large subspine deformities. A reliable technique that preserves the hip capsule would be helpful for hip arthroscopy surgeons. This note details our technique using pericapsular windows proximal to the interportal capsulotomy to access and decompress a subspine deformity in the setting of hip femoroacetabular impingement.Tears of the rotator cuff tendons can occur that do not allow anatomic footprint restoration yet may not be large enough to require a superior capsular reconstruction technique. Typically, these intermediate-sized tears are addressed with a medialized repair or partial repair technique. A partially repaired rotator cuff tendon, however, can lead to a high retear rate, as the repaired tendon is required to serve as both a dynamic tendon and a static ligamentous stabilizer. One potential static support, as a nearby autologous graft donor, is the proximal long head biceps tendon. The purpose of this Technical Note is to describe a surgical technique for an anterior cable reconstruction using the proximal biceps tendon for large rotator cuff defects.As hip arthroscopy has become increasingly used to treat femoroacetabular impingement, the importance of a complete femoroplasty to properly address cam impingement has been demonstrated. In doing so, different capsulotomy techniques have been described for gaining access to the hip joint as well as the peripheral compartment for cam resection. The periportal capsulotomy technique allows joint access while preserving the structural integrity of the iliofemoral ligament, obviating the need for capsular closure. We present a systematic approach and surgical technique for performing a complete arthroscopic femoroplasty while maintaining conservative hip capsule management through a periportal capsulotomy.Anterior cruciate ligament reconstruction (ACLR) with additional procedures could be necessary for patients with increased preoperative pivot shift. Double-bundle (DB) ACLR provides more footprint coverage and recreates the 2 functional anteromedial (AM) and posterolateral (PL) bundles, which are believed to give better joint function and stability than single-bundle (SB) ACLR. Internal brace augmentation with suture tape is proposed along with tendon graft in ACLR to protect the newly reconstructed ligament during rehabilitation. Additional reconstruction with anterolateral ligament (ALL) during ACLR has shown significant reduction in the level of persistent pivot shift. In Technical Note we present a modified surgical technique of combined anatomic DB ACLR and ALLR with hamstring autograft and internal brace, using button suspensory fixation device and aperture screws. The objective of this technique is to decrease residual anterior and rotational instability after ACLR and ALLR.Traumatic posterior dislocations of the shoulder can result in bony defects, labral tears, and cartilage injuries of the glenohumeral joint. Although traditional Hill-Sachs lesions from anterior dislocations are more commonly identified, reverse Hill-Sachs lesions caused by posterior dislocation often leads to recurrent engagement of the humeral head with the glenoid and significantly greater damage to the humeral chondral surface. In severe traumatic cases, concomitant damage of the capsulolabral soft tissues, such as circumferential labral lesions, can lead to chronic shoulder instability and residual glenoid bone loss. These lesions further add to the complexity of managing patients with posterior dislocations of the shoulder because of the challenges of achieving adequate anatomic reduction and tensioning of the capsulolabral junction, while also using a combination of arthroscopic and open-labral repair techniques. In the setting of reverse Hill-Sachs lesions treatment, it is important to address the bony and cartilage defect. The purpose of this Technical Note is to describe our preferred technique for arthroscopic repair of circumferential lesions of the glenoid labrum causing multidirectional instability with concomitant reverse Hill-Sachs Lesion treatment with fresh talus osteochondral allograft.Small symptomatic rotator cuff tears are a common problem seen by orthopaedic surgeons. Arthroscopic repair has been shown to have favorable outcomes for these lesions. There is as yet no consensus on the ideal technique for the arthroscopic repair of small rotator cuff tears. We present a single lateral row technique for the repair of such lesions, which we believe to be reproducible and effective, that achieves good approximation of the tear while reducing the chance of suture cutouts.Medial patellofemoral complex (MPFC) is considered as the primary medial patellar restraint and has a static, as well as dynamic, component. MPFL reconstruction (MPFL-R) restores only the static component of MPFC, is associated with multiple technical concerns, and has a steep learning curve. Need for physeal sparing techniques and relatively high rates of complications including patella fracture are some other concerns with MPFL-R. We propose a simple procedure for advancement of MPFC onto patella, which is indicated in most of the recurrent lateral instabilities (with a positive lateral glide test result and an intact MPFL on magnetic resonance imaging). The procedure is also indicated in selective acute primary dislocations-those with associated chondral lesions and magnetic resonance imaging-documented isolated patellar side avulsion/injury. MPFC advancement is a more anatomical procedure that also restores dynamic medial checkrein of patella and can be performed even by a novice surgeon. MPFC advancement is devoid of the multiple technicalities of MPFL-R, does not require intraoperative imaging or any postoperative immobilization, and renders complications like donor graft-site morbidity and patella fractures irrelevant.
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