Editorial Commentary: Return-to-Play and Return-to-Sport Metrics Require Standardization.

It is commonly accepted that a primary goal of orthopaedic surgeries is to restore function for our patients, and to achieve this goal, many research studies aim to define outcomes that set a benchmark for knowing whether this mark is achieved. Unfortunately, return-to-play (RTP) and return-to-sport (RTS) metrics are often used without any strict definition or standardization. They often rely on patient recall, which could be biased, and often fail to distinguish level of performance after return to activity.

Editorial Commentary: Hip Arthroscopy Outcomes May Have a Gender Bias.

It is a great challenge to analyze whether sex difference affects outcome of hip arthroscopy, because the indications, risk factors, and comorbidities are difficult to determine and may be heterogeneous between and within studies. For instance, mental health disorders, namely depression, are associated with worse outcomes following hip arthroscopy, and these disorders tend to be more prevalent in a female population. There are also known bony morphologic differences between men and women.

Do Current Stability Scores After MPFL Reconstruction Correlate With Patient Satisfaction Postoperatively?

Background: Patellar dislocation can lead to instability, pain, limited function, and recurrent dislocations. Medial patellofemoral ligament (MPFL) reconstruction leads to favorable patient reported outcomes, but many patients fail to return to previous activity levels. The purpose of this study is to determine how well patients do after MPFL reconstruction and to determine the most important factors for evaluation of patellar instability following MPFL reconstruction.

Calcific Tendinosis Reduces Diagnostic Performance of Magnetic Resonance Imaging in the Detection of Rotator Cuff Tears.

Objective: This study aimed to investigate the effect of calcific tendinosis on the diagnosis of rotator cuff tears (RCTs) on magnetic resonance imaging (MRI) and magnetic resonance arthrography (MRA).

Materials And Methods: Calcific tendinosis was confirmed radiographically. Two musculoskeletal radiologists then retrospectively and independently reviewed the MRI/MRA examinations, with surgery or arthroscopy performed within 90 days of the MRI.

Consensus-based classification system for intra-operative management of labral tears during hip arthroscopy-aggregate recommendations from high-volume hip preservation surgeons.

The purpose of this study was to survey high-volume hip preservation surgeons regarding their perspectives on intra-operative management of labral tears to improve decision-making and produce an effective classification system. A cross-sectional survey of high-volume hip preservation surgeons was conducted in person and anonymously, using a questionnaire that is repeated for indications of labral debridement, repair and reconstruction given the torn labra are stable, unstable, viable or non-viable. Twenty-six high-volume arthroscopic hip surgeons participated in this survey.

Editorial Commentary: Ligamentum Teres Reconstruction May Improve Hip Stability But Has High Revision Rates: Fad or Restoration of Function?

Ligamentum teres (LT) tears are correlated with hip instability, and biomechanical research suggests there is a stabilizing function of the intact native LT. With regard to LT reconstruction, currently, there are imaging studies demonstrating that the ligament goes on to heal and properly function. There are also no long-term clinical studies on the success rates of LT reconstruction.

Risk of Conversion to Arthroplasty After Hip Arthroscopy: Validation of a Published Risk Score Using an Independent, Prospectively Collected Database.

Background: Hip arthroscopy is rapidly advancing and increasingly commonly performed. The most common surgery after arthroscopy is total hip arthroplasty (THA), which unfortunately occurs within 2 years of arthroscopy in up to 10% of patients. Predictive models for conversion to THA, such as that proposed by Redmond et al, have potentially substantial value in perioperative counseling and decreasing early arthroscopy failures; however, these models need to be externally validated to demonstrate broad applicability.

Outcomes of Open and Endoscopic Repairs of Chronic Partial- and Full-Thickness Proximal Hamstring Tendon Tears: A Multicenter Study With Minimum 2-Year Follow-up.

Background: The preponderance of literature on the repair of proximal hamstring tendon tears focuses on the acute phase (<4 weeks). As such, there is a paucity of data reporting on the outcomes of chronic proximal hamstring tears.

Purpose: To report minimum 2-year postoperative patient-reported outcome (PRO) scores, visual analog scale (VAS) for pain, and patient satisfaction from patients who underwent open or endoscopic repair of partial- and full-thickness chronic proximal hamstring tendon tears.

Arthroscopic Treatment of Labral Tears in Patients 65 Years and Older.

The purpose of this multicenter study was to investigate the clinical outcomes after hip arthroscopy in a series of patients 65 years and older with labral tears with a minimum 2-year follow-up. Outcome data were prospectively collected and retrospectively reviewed for patients 65 years and older who underwent hip arthroscopy. Outcomes at minimum 2-year follow-up were analyzed using prospectively collected Hip Outcome Score (HOS) and modified Harris Hip Score (mHHS).

Is Labral Size Predictive of Failure With Repair in Hip Arthroscopy?

Purpose: To assess whether labral size is predictive of labral repair failure or shows an association with patient outcomes after hip arthroscopy.

Methods: We performed a retrospective chart review of patients who underwent arthroscopic hip labral repair. Labral size was measured in 4 quadrants with an arthroscopic probe.

A Multicenter Study of Radiographic Measures Predicting Failure of Arthroscopy in Borderline Hip Dysplasia: Beware of the Tönnis Angle.

Background: Hip arthroscopy has been previously demonstrated to be an effective treatment for adult mild hip dysplasia. There are many radiographic parameters used to classify hip dysplasia, but to date few studies have demonstrated which parameters are of most importance for predicting surgical outcomes.

Purpose: To identify preoperative radiographic parameters that are associated with poor outcomes in the arthroscopic treatment of adult mild hip dysplasia.

Iliopsoas Release in Hip Arthroscopy: Assessment of Muscle Atrophy.

Iliopsoas release is a common procedure for coxa saltans interna of the hip. The possible sequelae from this surgery have not been well studied. The purpose of this study was to determine postoperative atrophy and morphology of the cut tendon.

Hip and Groin Injuries in National Collegiate Athletic Association Women's Soccer Players.

Background: Hip and groin injuries are common in competitive soccer players and have been shown to be significant sources of time loss. There are few studies describing the epidemiology of hip and groin injuries in female National Collegiate Athletic Association (NCAA) soccer players.

Purpose: To describe the epidemiology of hip and groin injuries in women's collegiate soccer players.

Virtual, augmented, and mixed reality applications in orthopedic surgery.

Background: Innovation in computer-assisted surgery (CAS) aims to increase operative accuracy and improve safety by decreasing procedure-related complications. The application of reality technologies, to CAS has begun to revolutionize orthopedic training and practice.

Methods: For this review, relevant published reports were found via searches of Medline (PubMed) data base using the following medical subject headings (MeSH) terms: "virtual reality" or "augmented reality" or "mixed reality" with "orthopedics" or "orthopedic surgery" and all relevant reports we utilized.

Calcific Tendonitis of the Shoulder: Protector or Predictor of Cuff Pathology? A Magnetic Resonance Imaging-Based Study.

Purpose: The purpose of this investigation is to assess the incidence of rotator cuff tears in cases of calcific tendonitis and evaluate for differences in the incidences of rotator cuff tears by magnetic resonance imaging (MRI) between calcific lesions of different morphology, size, or location.

Methods: This single-center study involved a retrospective chart review searching for patients from January 2010 to April 2017 with a diagnosis of calcific tendonitis of the shoulder based on review of all MRI reads done on patients with shoulder pain. Anteroposterior radiographic and MRI studies were reviewed by a musculoskeletal radiologist to assess calcific tendonitis morphology, size, distance from cuff insertion, and any rotator cuff tear.

Editorial Commentary: Modified False-Profile View-Two Birds With One Stone?

Pathology in the hip is most commonly described using radiographic parameters. Accurately delineating this pathology is paramount in proper diagnosis and care. The anterior center-edge angle measures the anterior coverage of the acetabulum, which has implications in treating the hip.

Ten-Year Epidemiology of Ankle Injuries in Men's and Women's Collegiate Soccer Players.

Context: Data from the National Collegiate Athletic Association (NCAA) Injury Surveillance Program (ISP) have indicated that ankle injuries are the most common injuries among NCAA soccer players.

Objective: To review 10 years of NCAA-ISP data for soccer players' ankle injuries to understand how the time period (2004-2005 through 2008-2009 versus 2009-2010 through 2013-2014), anatomical structure injured, and sex of the athlete affected the injury rate, mechanism, and prognosis.

Design: Descriptive epidemiology study.

Arthroscopic Evaluation of Knee Cartilage Using Optical Reflection Spectroscopy.

Articular cartilage is critical for painless and low-friction range of motion; however, disruption of articular cartilage, particularly in the knee joint, is common. Treatment options are based on the size and depth of the chondral defect, as well as involvement of subchondral bone. The gold standard for evaluation of articular cartilage is with arthroscopy, but it is limited by its ability to objectively judge the depth and severity of chondral damage.

Is Microfracture Necessary? Acetabular Chondrolabral Debridement/Abrasion Demonstrates Similar Outcomes and Survival to Microfracture in Hip Arthroscopy: A Multicenter Analysis.

Background: Hip arthroscopy is becoming more advanced and commonly performed. However, significant controversy exists regarding whether high-grade acetabular cartilage lesions should be treated with debridement/abrasion or microfracture. In addition, patients treated with microfracture are subject to extended protected weightbearing rehabilitation to mitigate risk of subchondral plate fracture and to protect fibrocartilage tissue formation.

A Decade of Hip Injuries in National Collegiate Athletic Association Football Players: An Epidemiologic Study Using National Collegiate Athletic Association Surveillance Data.

Context: The complex, high-energy nature of football puts players at risk for hip injuries.

Objective: To analyze National Collegiate Athletic Association (NCAA) Injury Surveillance Program data for men's football hip injuries from 2004-2005 through 2013-2014.

Design: Descriptive epidemiologic study.