Wide Awake Surgery Is Safe and Feasible in Pediatric Orthopaedic Surgery.

Objective: Wide awake local anesthesia no tourniquet (WALANT) techniques are increasingly utilized for hand surgeries in adults, given the clinical benefits to patients, reduced environmental waste during surgery, and lower costs to the health care system. This technique is not widely employed for pediatric hand surgeries given concerns for parental and patient anxiety, noncompliance during surgery, and tolerance of administration of local anesthesia. Select patients undergoing amenable procedures can potentially benefit from this method and enjoy the lower morbidities and costs that adult patients enjoy.

Improving Applicant Satisfaction in Orthopaedic Surgery Residency Matching: The Role of Preference Signaling.

Background: The orthopaedic surgery residency match is becoming increasingly more competitive with a disproportionate number of applicants to positions. As the residency application process has become more competitive, applicants have resorted to applying broadly to improve their chance of a successful match. Preference signaling was implemented for orthopaedic surgery for the 2022-2023 match cycle which allowed applicants to "signal" 30 programs of their choosing.

The effect of augmenting suture material with magnesium and platelet-rich plasma on the adhesion and proliferation potential of subacromial bursa-derived progenitor cells.

Background: Connective tissue subacromial bursa-derived progenitor cells (SBDCs) have been suggested as a potent biologic augment to promote healing of the repaired rotator cuff tendon. Maximizing the amount of retained progenitor cells at the tendon repair site is essential for ensuring an optimal healing environment, warranting a search for proadhesive and proliferative adjuvants. The purpose was to evaluate the effect of magnesium (Mg), platelet-rich plasma (PRP), and a combination of both adjuvants on the cellular adhesion and proliferation potential of SBDCs on suture material commonly used in rotator cuff surgery.

Traumatic Sternoclavicular Dislocations in Athletes: Diagnosis, Indications for Surgical Reconstruction, and Guide for Return to Play.

Injuries to the sternoclavicular (SC) joint are rare, however, when they occur prompt recognition, evaluation, and treatment are crucial. SC joint injuries can occur following high-energy mechanisms such as motor vehicle collisions and contact sports. Injury to the SC joint can be evaluated with the use of plain radiographs as well as computed tomography.

Dual- Versus Single-Plate Fixation of Clavicle Fractures: Understanding the Rationale Behind both Approaches.

Clavicle fractures are a common injury resulting from a high-energy force, such as a fall onto the shoulder, motor vehicle accident, or sporting activity. Although some clavicle fractures may be treated nonoperatively, operative treatment results in higher union rates and faster return to activity. Here we discuss the operative treatment options for plating of clavicle fractures; specifically, a single plate placed either superiorly or anteriorly or two plates placed orthogonally.

Surgical Treatment of Pediatric Scoliosis: Historical Origins and Review of Current Techniques.

The treatment of scoliosis has been explored and debated in medicine since the first recorded texts. Scoliosis treatment has shifted over time from external modalities, such as traction and bracing, to internal stabilization techniques that leverage surgical advances. Surgical fixation constructs can generally be separated into two different modalities: dynamic vs.

Subacromial bursa increases the failure force in a mouse model of supraspinatus detachment and repair.

Background: It has been shown that subacromial bursa (SAB) harbors connective tissue progenitor cells. The purpose of this study was to evaluate the effects of implantation of SAB-derived cells (SBCs) suspended in a fibrin sealant bead and implantation of SAB tissue at rotator cuff repair site on biomechanical properties of the repair in a mouse (C57Bl/6) model of supraspinatus tendon (ST) detachment and repair.

Methods: Part 1: Murine SAB tissue was harvested and cultured.

Augmenting Suture Tape Used in Rotator Cuff Surgery With Magnesium Increases in Vitro Cellular Adhesion of Human Subacromial Bursal Tissue.

Purpose: To evaluate the effect of magnesium on cellular adhesion and proliferation of human subacromial bursal tissue (SBT), osteoblasts, and tenocytes on nonabsorbable suture tape commonly used in rotator cuff surgery.

Methods: Human SBT cells, primary human osteoblasts (HOBs), and primary human tenocytes were isolated from tissue samples and cultured in growth media. Commercially available collagen-coated nonabsorbable suture tape was cut into one-inch pieces, placed into 48-well culture dishes, sterilized under ultraviolet light, and treated with (+) or without (-) magnesium.

The Effect of Insulin and Insulin-like Growth Factor 1 (IGF-1) on Cellular Proliferation and Migration of Human Subacromial Bursa Tissue.

Purpose: To evaluate the effect of a one-time dose of insulin or insulin-like growth factor 1 (IGF-1) on cellular proliferation and migration of subacromial bursa tissue (SBT) over time.

Methods: SBT was harvested from over the rotator cuff tendon in 4 consecutive patients undergoing primary arthroscopic rotator cuff repair. SBT was cultured for 3 weeks in complete media until reaching confluence.

Clinical and Functional Outcomes After Operative and Nonoperative Treatment of Distal Biceps Brachii Tendon Ruptures in a Consecutive Case Series.

Background: Patients with ruptures of the distal biceps brachii tendon (DBBT) have traditionally been treated via surgical repair, despite limited patient data on nonoperative management.

Purpose/hypothesis: To determine the clinical and functional outcomes for patients with partial and complete DBBT injuries treated nonoperatively or surgically through an anatomic single-incision technique. We hypothesized that there would be no difference in outcomes in patients treated with nonoperative or operative management.

Characterization of murine subacromial bursal-derived cells.

Purpose/aim: The purpose of this study is to identify a cell population within the murine subcromial bursal-derived cells with characteristics compatible to an accepted mesenchymal stem cell description given by the International Society for Cellular Therapy (ISCT).

Materials And Methods: Murine subacromial bursa was harvested using microsurgical technique. Subacromial bursal-derived cells were classified through colony-forming units, microscopic morphology, fluorescent-activated cell sorting, and differentiation into chondrogenic, adipogenic, and osteogenic lineages.

Medial meniscal extrusion greater than 4 mm reduces medial tibiofemoral compartment contact area: a biomechanical analysis of tibiofemoral contact area and pressures with varying amounts of meniscal extrusion.

Purpose: The primary objective of this study is to evaluate the contact areas, contact pressures, and peak pressures in the medial compartment of the knee in six sequential testing conditions. The secondary objective is to establish how much the medial meniscus is able to extrude, secondary to soft tissue injury while keeping its roots intact.

Methods: Ten cadaveric knees were dissected and tested in six conditions: (1) intact meniscus, (2) 2 mm extrusion, (3) 3 mm extrusion, (4) 4 mm extrusion, (5) maximum extrusion, (6) capsular based meniscal repair.

The interaction between human rotator cuff tendon and subacromial bursal tissue in co-culture.

Background: The role of subacromial bursa in rotator cuff pathology is unclear. Along with recognized inflammatory potential, current data demonstrate the presence of mesenchymal stem cells and potential regenerative properties of the bursa. The purpose of this study was to (1) approximate an in vitro co-culture model that represents interaction between torn rotator cuff tendon and subacromial bursa, (2) quantify the cellular activity of tendon and bursa and their interactions, (3) use this model to induce a state of inflammation present with rotator cuff pathology.

Intraoperative and In Vitro Classification of Subacromial Bursal Tissue.

Purpose: To classify subacromial bursal tissue using intraoperative and in vitro characteristics from specimens harvested during arthroscopic shoulder surgery.

Methods: Subacromial bursa was harvested over the rotator cuff from 48 patients (57 ± 10 years) undergoing arthroscopic shoulder surgery. Specimens were characterized intraoperatively by location (over rotator cuff tendon or muscle), tissue quality (percent of either fatty or fibrous infiltration), and vascularity before complete debridement.