A Rare Case of Primary Epithelioid Hemangioma of Bone with Fusion: A Benign Lesion with the Potential to Mimic Malignancy.

Epithelioid hemangioma of bone is a rare benign, locally aggressive vascular tumor that can be particularly challenging to diagnose given its frequent multifocality, non-specific imaging findings, and wide range of morphologic appearances. Additionally, some epithelioid hemangiomas demonstrate atypical histologic features including increased cellularity, necrosis, and moderate cytologic atypia - characteristics that may raise concern for malignancy. Molecular studies can serve as a powerful, objective tool in the differential diagnosis of diagnostically challenging epithelioid vascular tumors.

Nonarthritic Hip Pathology Patterns According to Sex, Femoroacetabular Impingement Morphology, and Generalized Ligamentous Laxity.

Background: Sex differences are frequently encountered when diagnosing orthopaedic problems. Current literature suggests specific sex differences, such as a higher prevalence of cam-type femoroacetabular impingement syndrome in male patients and features of hip instability in female patients.

Purpose: To identify hip pathology patterns according to sex, alpha angle deformity, and generalized ligamentous laxity (GLL) in a nonarthritic patient population that underwent primary hip arthroscopy in the setting of femoroacetabular impingement syndrome and labral tears.

Diagnostic accuracy of a new clinical test (resisted internal rotation) for detection of gluteus medius tears.

The objective of this study was to evaluate the diagnostic accuracy of a new dynamic clinical examination for detection of gluteus medius (GM) tears. A case group of 50 patients undergoing arthroscopy with GM repair was compared with a control group of 50 patients undergoing arthroscopy who had no peritrochanteric symptoms. Both groups were examined clinically, had magnetic resonance imaging studies performed and underwent arthroscopic surgery.

Return to Play in Amateur Soccer Players Undergoing Hip Arthroscopy: Short- to Mid-Term Follow-Up.

Purpose: To describe patient-reported outcomes (PROs) and return to play at any level in amateur soccer players undergoing hip arthroscopy for femoroacetabular impingement syndrome at short- to mid-term follow-up.

Methods: Data were prospectively collected and retrospectively reviewed for patients who underwent hip arthroscopy between March 2009 and June 2014. Patients who participated in amateur soccer within 1 year prior to surgery and intended to return to their sport after hip arthroscopy for femoroacetabular impingement syndrome were considered for inclusion in our study.

The 'upper deck view' improves visualization during acetabuloplasty without chondro-labral detachment.

The 'upper deck' view is an arthroscopic perspective which visualizes the labral-osseous junction without detachment of the chondro-labral junction. The aim of this study was to evaluate the utility of the 'upper deck' view in preventing incomplete acetabuloplasty. Data were prospectively collected from September 2016 to November 2016 for all hip arthroscopies.

Five-Year Outcomes and Return to Sport of Runners Undergoing Hip Arthroscopy for Labral Tears With or Without Femoroacetabular Impingement.

Background: Recent evidence has demonstrated a high rate of return to running after hip arthroscopy for femoroacetabular impingement at short-term follow-up. The midterm outcomes and rates of continued running of these patients are unknown.

Purpose: To evaluate midterm rates of return to running and outcomes after hip arthroscopy.

Clinical Outcomes After Hip Arthroscopy for Patients With Rheumatoid Arthritis: A Matched-Pair Control Study With Minimum 2-Year Follow-Up.

Purpose: This study analyzed minimum 2-year hip arthroscopy outcomes in rheumatoid arthritis (RA) patients and non-RA control patients. It also examined whether disease-modifying antirheumatic drugs (DMARDs) affected RA patient outcomes. We hypothesized that patients with RA undergoing hip arthroscopy would have lower reported outcome scores.

Hip Arthroscopy in Patients Ages 50 Years or Older: Minimum 5-Year Outcomes, Survivorship, and Risk Factors for Conversion to Total Hip Replacement.

Purpose: To report minimum 5-year outcomes and risk factors for conversion to total hip arthroplasty (THA) in patients ≥50 years old undergoing hip arthroscopy to treat labral tears and femoroacetabular impingement (FAI).

Methods: Data were prospectively collected on patients who underwent hip arthroscopy to treat labral tears and FAI between February 2008 and January 2012. The inclusion criteria were ≥50 years old at surgery, arthroscopic treatment for both labral tears and FAI, and preoperative patient-reported outcome (PRO) scores for modified Harris Hip Score (mHHS), Nonarthritic Hip Score (NAHS), Hip Outcome Score-Sports Specific Subscale (HOS-SSS), and Visual Analog Scale (VAS).

Radiographic Risk Factors and Signs of Abductor Tears in the Hip.

Purpose: The purpose of this study is to identify radiographic risk factors (RRFs) and radiographic signs of abductor tendon tears.

Methods: Between April 2008 and October 2015, patients with intraoperative diagnosis of partial- or full-thickness abductor tear noted at the time of open or endoscopic treatment were included in this study. Exclusion criteria included lack of preoperative standard supine pelvic radiograph, lack of preoperative magnetic resonance imaging (MRI), or abductor tear not present at the time of operative intervention.

Fresh Femoral Head Osteochondral Allograft Transplantation for Treating Osteochondritis Dissecans of the Femoral Head.

Treatment options for the management of osteochondritis dissecans (OCD) lesions of the femoral head are limited. Although arthroscopic surgery of the hip can treat a variety of intra- and extra-articular pathologies, an OCD lesion located at the superior and medial zone of the femoral head is often difficult to access and cannot be adequately treated arthroscopically. The use of fresh-stored osteochondral allograft allows surgeons to both avoid donor-site morbidity and treat lesions of a larger surface area.

Return to Play Among Golfers Undergoing Hip Arthroscopy: Short- to Mid-term Follow-up.

There are approximately 25 million amateur golfers in the United States, making up almost 10% of the entire US population. The purpose of this study was to evaluate short-term outcomes and rates of return to sport among recreational golfers who underwent hip arthroscopy for the treatment of labral tears. Data were prospectively collected and retrospectively reviewed for patients who underwent hip arthroscopy by one surgeon between August 2008 and February 2015.

Robot-assisted total hip arthroplasty: Clinical outcomes and complication rate.

Background: The purpose of this study was to report minimum 2-year outcomes and complications for robotic-arm-assisted total hip arthroplasty (THA).

Methods: Data were prospectively collected and retrospectively reviewed between June 2011 and April 2014. Inclusion criteria were primary robotic-arm-assisted THAs treating idiopathic osteoarthritis with ≥ 2-year follow-up.

The "Bird's Eye" and "Upper Deck" Views in Hip Arthroscopy: Powerful Arthroscopic Perspectives for Acetabuloplasty.

Arthroscopic acetabuloplasty involves trimming of bone from the acetabular rim. Although early techniques often involved detachment of the labrum prior to bone resection, recent studies have reported on acetabuloplasty without labral detachment. This method has the benefit of preserving the labro-osseous junction, but visualization of the acetabular rim may be more difficult.

Patient-Reported Outcomes of Capsular Repair Versus Capsulotomy in Patients Undergoing Hip Arthroscopy: Minimum 5-Year Follow-up-A Matched Comparison Study.

Purpose: To elucidate whether capsular closure during hip arthroscopy affected patient outcomes over midterm follow-up.

Methods: Between 2008 and 2011, data were prospectively collected and retrospectively reviewed on patients who underwent hip arthroscopy. Patients were then matched for age, gender, worker's compensation, body mass index, and acetabular coverage.

Can Stem Version Consistently Correct Native Femoral Version Using Robotic Guidance in Total Hip Arthroplasty?

The purpose of this study is to investigate whether robotic guidance in total hip arthroplasty (THA) can consistently correct native femoral version. One hundred seventy-five consecutive patients who underwent MAKO® (Stryker, Kalamazoo, Michigan) robotic-guidance THA were included in the study. The study population had a mean age of 57.

Endoscopic Repair of Partial-Thickness Undersurface Tears of the Abductor Tendon: Clinical Outcomes With Minimum 2-Year Follow-up.

Purpose: To report the minimum 2-year outcomes of transtendinous repair of partial-thickness undersurface tears of the abductor tendon using patient-reported outcomes (PROs), visual analog scale (VAS) scores, and patient satisfaction scores.

Methods: All patients who underwent endoscopic transtendinous gluteus medius repair between October 2009 and May 2013 at 1 institution were prospectively evaluated. The exclusion criteria consisted of less than 2 years' follow-up, previous hip surgery, inflammatory arthritis, open surgery, full-thickness abductor tear, and Workers' Compensation patients.

Hip Arthroscopic Surgery With Labral Preservation and Capsular Plication in Patients With Borderline Hip Dysplasia: Minimum 5-Year Patient-Reported Outcomes.

Background: The arthroscopic management of hip dysplasia has been controversial and has historically demonstrated mixed results. Studies on patients with borderline dysplasia, emphasizing the importance of the labrum and capsule as secondary stabilizers, have shown improvement in patient-reported outcomes (PROs). Purpose/Hypothesis: The purpose was to assess whether the results of hip arthroscopic surgery with labral preservation and concurrent capsular plication in patients with borderline hip dysplasia have lasting, positive outcomes at a minimum 5-year follow-up.

Results of hip arthroscopy in patients with MRI diagnosis of subchondral cysts-a case series.

The aim of this article is to examine the results of arthroscopic management of patients with labral pathology who have preoperative magnetic resonance images (MRIs) demonstrating subchondral cysts. This institution's database was searched for patients who underwent hip arthroscopy and had subchondral cysts on MRI and >2-year follow-up. Exclusion criteria included previous hip surgery, Tönnis grade >1, inflammatory arthritis, Perthes, slipped capital femoral epiphysis or abductor repair.

Outcomes of Femoral Head Marrow Stimulation Techniques at Minimum 2-Year Follow-up.

This study compared patients who underwent femoral head microfracture with a control group of patients who did not require microfracture. Patients had more than 2 years of follow-up. The patient groups had similar demographic and radiographic features, including sex, age within 5 years, body mass index within 5 points, equal Tönnis grade, lateral center edge angle within 5°, labral treatment, and capsular closure vs release.

Outcomes of Hip Arthroscopy in Adolescents: A Comparison of Acute Versus Chronic Presentation. Two-Year Minimum Follow-up.

Background: Hip arthroscopy has been shown to be effective in managing various hip pathologies, including labral tears in adolescent patients. The purpose of this study was to ascertain whether outcomes of hip arthroscopy in patients under the age of 18 treated for labral tears differ depending on whether the presentation was acute or chronic. We also present the outcomes of the largest prospectively collected study on hip arthroscopy performed for labral tears in adolescents.

Selective Debridement With Labral Preservation Using Narrow Indications in the Hip: Minimum 5-Year Outcomes With a Matched-Pair Labral Repair Control Group.

Background: Arthroscopic labral debridement in the hip can be an effective treatment for labral tears but has demonstrated inferior outcomes compared with labral repair. Thus, the role for labral debridement has become unclear. Hypothesis/Purpose: The purpose was to evaluate the outcomes of a selective debridement with labral preservation (SDLP) group with a minimum 5-year follow-up.

Clinical Outcomes of Hip Arthroscopic Surgery in Patients With Femoral Retroversion: A Matched Study to Patients With Normal Femoral Anteversion.

Background: Femoral retroversion has been noted as a possible risk factor for poor clinical results after hip arthroscopic surgery.

Purpose: To compare the outcomes of the arthroscopic treatment of hip abnormalities in patients with femoral retroversion to patients with femoral anteversion between 10° and 20°.

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