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Isolated distal rectus femoris avulsions from the common quadriceps tendon are rare and may be missed due to the integrity of the remaining extensor mechanism. In healthy, active patients, surgical repair is recommended due to the potential for persistent pain, cramping, and weakness. In the case of isolated distal rectus femoris avulsions, however, there are important surgical considerations and differences when compared with the treatment of complete quadriceps tendon ruptures. This Technical Note describes an open repair of an isolated distal rectus femoris rupture with reinsertion into the common quadriceps tendon., Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: A.C.K. is on the Editorial Board for Arthroscopy: The Journal of Arthroscopic and Related Surgery. J.J.R. is a consultant or advisor for Smith & Nephew. All other authors (E.K.A., H.N., O.M.J.) declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 The Authors.)

Avascular necrosis of the femoral head (AVNFH) is a debilitating disease that requires early intervention to prevent subchondral collapse and irreversible damage leading to premature hip replacement. Patients presenting with AVNFH can have concomitant intra-articular pathology, including femoroacetabular impingement (FAI), that contributes to their hip pain and dysfunction. It is important to restore the native hip anatomy in addition to providing revascularization of necrotic areas to reduce pain, improve function, and maximize efforts to preserve the joint. The purpose of this Technical Note is to describe our preferred arthroscopic approach to core decompression through the femoral neck in combination with femoral osteoplasty to address AVNFH and FAI in a single-staged and minimally invasive procedure., (© 2022 The Authors.)

Subscapularis tears have been found to occur in the setting of subcoracoid impingement and are related to the narrowing of the coracohumeral interval. The advancement of arthroscopic techniques has allowed for improved identification and treatment of this historically overlooked pathology. Challenges of arthroscopic subscapularis treatment include nearby neurovascular structures, tendon retraction, and adhesions, which are further complicated by diminished arthroscopic visualization, resulting from the concomitant subcoracoid impingement. The purpose of this Technical Note is to describe our preferred technique for arthroscopic management of subscapularis tears in the setting of subcoracoid impingement that is simple and reproducible, as well as cost-effective and efficient with limited additional morbidity to that of a standard diagnostic shoulder arthroscopy., (© 2021 The Authors.)

Traditionally, total shoulder arthroplasty is performed using a deltopectoral approach through which the glenohumeral joint is accessed by mobilization of the subscapularis. Despite several variations on the subscapularis management techniques, postoperative complications, including subscapularis deficiency and lower functional outcomes, remain an area for improvement. The purpose of this Technical Note is to describe in detail our technique for management of the subscapularis in the setting of a stemless humeral implant through which the repair is planned and almost entirely performed at the beginning of the case, prior to the subscapularis peel. This technique aims to improve outcomes after total shoulder arthroplasty by 1) avoiding the anatomic implant with anchor drilling, 2) improving procedure efficiency, and 3) anatomically "repairing" the subscapularis prior to takedown by placing anchors exactly at the repair-tension site.

Axillary nerve compression is a rare cause of posterolateral shoulder pain. Once the diagnosis is confirmed and after failure of conservative measures, open procedures have been the mainstay of treatment for several decades. More recently, arthroscopic techniques have been proposed, which offer several advantages, including improved access to difficult locations, better visualization, and less surgical morbidity. The objective of this Technical Note is to describe an arthroscopic neurolysis of the axillary nerve from the inferior humeral pouch, through the quadrilateral space and into the subdeltoid recess., (© 2021 The Authors.)

Extensive glenoid labral tears, whether the result of repetitive instability or first-time dislocation, compromise the mechanical stability of the glenohumeral joint due to disruption of the anterior, inferior, posterior, and/or superior portions of the labrum. These lesions often result in recurrent multiplanar instability and pain that is nonresponsive to conservative management and difficult to diagnose due to variability in clinical presentation and advanced imaging findings. Arthroscopic repair techniques to address symptomatic shoulder instability have showed positive patient-reported outcomes, low failure rates, and high return-to-sport rates. The evolution of knotless suture anchors offers a fixation method that has proven to be functionally equivalent to knotted suture anchors while avoiding the risks of knotted anchors (knot loosening, knot migration, articular abrasion) and allowing easier placement and decreased operative time. The purpose of this technique is to describe our preferred method to treat a 270° labral tear through arthroscopic knotless anchor repair and demonstrate the expanded application of this technique for extensive glenoid labral pathology.

Posterior shoulder instability is increasingly recognized and diagnosed in young athletes. These patients often present with vague shoulder pain rather than the frank instability commonly seen with anterior instability. Three common causes of posterior shoulder instability are congenital retroversion, a single traumatic event, or repetitive microtrauma with erosive effects. The critical determination when deciding on the appropriate treatment of posterior shoulder instability is the presence and degree of glenoid bone loss. In patients without bone loss, arthroscopic procedures have a high success rate with a failure rate of less than 10% and an 89% return-to-sport rate. The determination of the critical amount of bone loss that would permit an arthroscopic procedure is controversial, but recent reports that attempt to quantify the critical bone loss value posteriorly have ranged from 13.5% to 20%. This Technical Note describes our preferred method of open surgical treatment of posterior shoulder instability with posterior glenoid bone loss using an intra-articular distal tibial allograft., (© 2021 by the Arthroscopy Association of North America. Published by Elsevier.)

Complete radial tears of the meniscus render the entirety of the meniscus functionally incompetent (known as an ameniscal state); therefore, attempts at repair are essential. Although various techniques have been described, repair failures continue to frequently occur, especially with the medial meniscus. Inside-out repair and anchoring of the preserved meniscus to both the capsule and tibia may offer the advantage of a more robust repair. The objective of this Technical Note is to describe a method of repair for complete radial tears of the medial meniscus using a combination of inside-out sutures and secondary reinforcement to the tibia using all-suture knotless anchors., (© 2021 Published by Elsevier on behalf of the Arthroscopy Association of North America.)

Meniscal tears treated with partial meniscectomies have been shown to significantly increase contract pressures within the tibiofemoral joint, and a complete focal meniscal deficiency may render the entirety of the meniscus functionally incompetent. Although various techniques of meniscal transplantation have been described, these techniques may require the excision of a considerable amount of healthy meniscal tissue. Furthermore, failures continue to frequently occur. Therefore, attempts to restoring normal knee kinematics and biomechanical forces are essential. Segmental meniscus allograft transplantations may offer the advantage of a robust repair by both maintaining knee biomechanics and biology while maximizing preservation of native meniscal tissue. Also, most meniscal deficiency involves only a portion of the meniscus, and thus we developed this technique to segmentally transplant only the deficient portion. The purpose of this Technical Note is to describe a technique of segmental medial meniscus allograft transplantation in a patient with focal medial meniscus deficiency.

Popliteal tendon tears without concomitant damage to the cruciate ligaments or other posterolateral corner ligaments are rare entities with few studies reporting on their existence, with rare case reports discussing their treatment. Continued pain, instability, and effusions are typical symptoms, with magnetic resonance imaging being the main tool for diagnosis. Furthermore, monosodium urate crystals that induce gout have been shown to collect in the popliteal groove and thus may lead to degeneration and isolated tearing. Most case reports have reviewed arthroscopic debridement of the tendon in patients with continued pain. However, in the young athletic population, open repair, if the tissue appears to be of adequate quality, should be a consideration. The use of suture anchors to restore the popliteus to its anatomic footprint is desired. This Technical Note describes a safe and reliable technique for open popliteal tendon repair of an isolated avulsion injury., (© 2020 by the Arthroscopy Association of North America. Published by Elsevier.)

Isolated lateral compartment arthritis or focal chondral defects in the setting of genu valgum in young, active individuals can be treated with a varus-producing distal femoral osteotomy with or without cartilage treatment. Both medial closing-wedge and lateral opening-wedge techniques have been described, with neither demonstrating clear superiority. The objective of this Technical Note is to describe a technique of biplanar medial opening-wedge with controlled reduction using an articulated tensioning device to achieve a safe, reproducible result., (© 2020 by the Arthroscopy Association of North America. Published by Elsevier.)

Ruptures of the patellar tendon are rare but potentially devastating injuries reported to occur most commonly in active males in their third and fourth decades of life. Repair failure rates have been reported to range between 2% and 50% based on surgical technique used. There are several inherent challenges associated with revision patellar tendon repair, including quadriceps atrophy, contracture, tissue loss, excessive scarring, and improper patella height. There remains no consensus regarding ideal revision patellar tendon repair technique. The purpose of this Technical Note is to describe our preferred method for revision patellar tendon repair using suture anchors and allograft augmentation with adjustable loop suspensory fixation. On the basis of recent studies, we have carefully chosen our fixation and augmentation methods that have shown biomechanical promise, while allowing the surgeon to carefully titrate the patellar tendon length and accommodate for some patellar tendon tissue loss., (© 2020 by the Arthroscopy Association of North America. Published by Elsevier.)

In the setting of femoroacetabular impingement, the acetabular labrum may be torn or pathologic, and it must be surgically repaired to restore the native suction seal and hip function. However, the current methods of arthroscopic suture passage commonly result in some degree of disruption of the chondrolabral junction, with penetration and shuttling of the repair sutures. Novel instrumentation and surgical techniques have aimed to repair the acetabular labrum with decreased violation of the intrasubstance fibers to provide anatomic eversion/inversion of the labrum to restore the suction seal. In this Technical Note, we describe a method of suture passage through the use of a self-grasping suture-passing device that allows for anatomic labral repair while maintaining the chondrolabral junction as well as minimizing iatrogenic damage the labrum intrasubstance fibers., (© 2020 by the Arthroscopy Association of North America. Published by Elsevier.)

Treatment of severe acromioclavicular joint injuries remains controversial and has evolved over the past 4-plus decades. Although several variations on reconstruction exist, an ideal technique will likely use a combination of coracoclavicular ligament reconstruction with suture backup stabilization, minimal drill holes to reduce the risk of fracture, arthroscopic-assisted guidance for anatomic graft and suture placement in and around the coracoid, and fluoroscopic-aided reduction to ensure an anatomic acromioclavicular joint. The objective of this Technical Note is to describe an arthroscopic-assisted coracoclavicular ligament reconstruction with allograft using fluoroscopically guided and cerclage-controlled anatomic reduction of the acromioclavicular joint., (© 2020 by the Arthroscopy Association of North America. Published by Elsevier.)

Long head of the biceps (LHB) pathology is a prevalent cause of shoulder pain. Arthroscopic tenotomy and tenodesis are performed for treatment at increasing frequency. When LHB pathology is the only glenohumeral intra-articular pathology that needs to be addressed, and an LHB tenotomy or subpectoral LHB tenodesis is planned, it is unnecessary and potentially harmful to establish an anterior rotator interval portal. The objective of this Technical Note is to describe a minimally invasive technique for LHB tenotomy at the supraglenoid tubercle without the need for establishing an accessory portal., (© 2020 by the Arthroscopy Association of North America. Published by Elsevier.)