Timing of Surgical Treatment for High-Grade Acromioclavicular Joint Injuries Does Not Affect Functional Outcomes.

Purpose: To determine, using multivariate regression, whether patient-reported outcomes are associated with surgical timing to account for differences between groups.

Methods: Patients who underwent acromioclavicular (AC) joint surgery from 2010 to 2019 were included if they underwent primary AC joint surgery for a Rockwood grade III-V AC joint separation. Chart review was conducted to determine time from injury to surgery, Rockwood injury grade, and surgical technique.

In Patients With Bilateral Rotator Cuff Tear, Staged Surgery is Superior to Simultaneous Surgery: A Systematic Review.

Purpose: To compare revision rates and functional outcomes between patients who underwent staged versus simultaneous bilateral rotator cuff repair (RCR).

Methods: This systematic review was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines with no institutional review board approval or funding required. The PubMed, SportDiscus, and Ovid Medline databases were queried to identify original research studies evaluating preoperative characteristics and postoperative outcomes of staged or simultaneous RCR.

Association of Antihypertensive and Statin Medication Usage With Postoperative Stiffness After Arthroscopic Rotator Cuff Repair: A Retrospective Cohort Study.

Background: Angiotensin-converting enzyme inhibitors (ACEi), angiotensin receptor blockers (ARB), and statins may be able to modulate postoperative stiffness, a major cause of morbidity after arthroscopic rotator cuff repair (aRCR).

Purpose: To determine whether there is an association between ACEi, ARB, or statin usage and stiffness after aRCR.

Study Design: Cohort study; Level of evidence, 3.

Return to Sport After Treatment of Stable Osteochondritis Dissecans Lesions of the Knee in Adolescents: A Systematic Review.

Background: Treatment of stable osteochondritis dissecans (OCD) lesions of the knee in young patients poses the challenge of abstaining from competitive sports for months. Outcomes relevant to this patient population additionally include successful return to sport (RTS), return to the same level of sport, and the time needed to achieve both.

Purpose: To evaluate the adolescent population for RTS outcomes after treatment of stable OCD lesions of the knee and to compare RTS outcomes between patients treated nonoperatively and those who required surgery.

Negative memory capacitance and ionic filtering effects in asymmetric nanopores.

The pervasive model for a solvated, ion-filled nanopore is often a resistor in parallel with a capacitor. For conical nanopore geometries, here we propose the inclusion of a Warburg-like element, which is necessary to explain otherwise anomalous observations such as negative capacitance and low-pass filtering of translocation events (we term this phenomenon as Warburg filtering). The negative capacitance observed here has long equilibration times and memory (that is, mem-capacitance) at negative voltages.