Dreaded Ulnar Wrist Pain: Long-Term Results of Pisiformectomy for Painful Pisotriquetral Arthrosis.

Pisiform pathology may be a source of ulnar-sided wrist pain. This study reviews the long-term outcomes of patients treated with pisiformectomy. A retrospective study approved by the institutional review board was performed over a 27-year period of patients undergoing pisiformectomy.

Adventitial cysts of the radial artery are joint connected.

Volar radial wrist masses are common. Adventitial cysts of the radial artery are rarely reported and poorly understood. We describe a case series of adventitial cysts in association with the radial artery and detail their pathophysiology and treatment.

Pediatric Pelvic Ring Injuries.

The purpose of this study was to determine whether pelvic fracture pattern is associated with transfusion requirements or concomitant injuries in pediatric patients. This was a single-institution, retrospective review from 1970 to 2000. Pelvic ring injuries were classified using the Orthopaedic Trauma Association system.

Phalangeal Fracture During Attempted Dupuytrens Release Following Clostridial Collagenase Injection: Case Report.

Introduction: Dupuytren's disease can be a challenging condition for both patients and surgeons. Injectable collagen clostridium histolyticum was approved for clinical use by the Food and Drug Administration in 2010. A number of side effects have been described.

Giant Cell Tumor of the Metacarpal: Case Report.

Background: Giant cell tumor (GCT) of bone is a benign, though locally aggressive tumor, classically described as an eccentric lytic lesion, often with cortical expansion and destruction. It typically involves the metaphysis or epiphysis of long bones in skeletally mature patients, with a slight female predominance. The incidence in the small bones of the hand has been reported to be 2% to 5%.

The Utility of Routine Postoperative Radiographs After Pinning of Pediatric Supracondylar Humerus Fractures.

Background: The purpose of this study was to determine the frequency with which postoperative radiographs resulted in a change in management following closed reduction and percutaneous pinning of displaced pediatric supracondylar humerus fractures. We hypothesize that only the initial postoperative radiograph will lead to changes in management of operative supracondylar humerus fractures.

Methods: A retrospective review was performed at 2 level I pediatric trauma centers.

Do claims-based comorbidities adequately capture case mix for surgical site infections?

Background: There is increasing interest in using administrative claims data for surveillance of surgical site infections in THAs and TKAs, but the performance of claims-based models for case-mix adjustment has not been well studied. Performance of claims-based models can be improved with the addition of clinical risk factors for surgical site infections.

Questions/purposes: We assessed (1) discrimination and calibration of claims-based risk-adjustment models for surgical site infections; and (2) the incremental value of adding clinical risk factors to claims-based risk-adjustment models for surgical site infections.

Diabetes mellitus, hyperglycemia, hemoglobin A1C and the risk of prosthetic joint infections in total hip and knee arthroplasty.

Diabetes mellitus is an established risk factor for infections but evidence is conflicting to what extent perioperative hyperglycemia, glycemic control and treatment around the time of surgery modify the risk of prosthetic joint infections (PJIs). In a cohort of 20,171 total hip and knee arthroplasty procedures, we observed a significantly higher risk of PJIs among patients with a diagnosis of diabetes mellitus (hazard ratio [HR] 1.55, 95% CI 1.

External validation of the national healthcare safety network risk models for surgical site infections in total hip and knee replacements.

Background: The National Healthcare Safety Network surgical site infections risk models for hip (HPRO) and knee (KPRO) replacement are intended for case-mix adjustment when reporting surgical site infection rates across institutions, but they are not validated in external data sets.

Objective: To evaluate the validity of HPRO and KPRO risk models and improvement in risk prediction with inclusion of information on morbid obesity and diabetes mellitus.

Design: Retrospective cohort study.

Peri-operative complications in pediatric and adolescent shoulder arthroscopy.

Background: Shoulder arthroscopy is not common in the pediatric and adolescent population, but the frequency may be on the rise. The purpose of the study was to determine the incidence of acute complications of arthroscopic shoulder surgery in children and adolescents.

Methods: A retrospective, cross-sectional review was performed identifying patients aged 18 years or less who underwent an arthroscopic shoulder procedure from 1997 to 2009 at Institution 1 and 2007 to 2010 at Institution 2.

Functional outcomes and quality of life following surgical treatment of aneurysmal bone cysts of the pelvis in children.

Background: Aneurysmal bone cysts (ABCs) are a benign aggressive tumor that occurs rarely in the pelvis in the pediatric population. Pelvic ABCs may involve the triradiate cartilage and/or the acetabulum, which increases the technical difficulty of surgical treatment and has potential implications on the growth and development of the hip joint. This study examines the clinical presentation, rate of surgical complications, and recurrence rate, as well as, long-term clinical and functional outcomes of children with pelvic ABCs treated at a single institution by a single treatment modality.

Clinical outcome of internal fixation of unstable juvenile osteochondritis dissecans lesions of the knee.

Juvenile osteochondritis dissecans (OCD) lesions of the knee are a common cause of knee pain in skeletally immature patients.The authors sought to determine lesion healing rates, the risk factors associated with failure to heal, and the clinical outcomes for patients who underwent internal fixation for unstable OCD lesions. A retrospective review was conducted of all patients who underwent internal fixation of OCD lesions from 1999 to 2009.

Total hip arthroplasty in the young: special emphasis on post-SCFE patients.

Slipped capital femoral epiphysis (SCFE) is a hip disorder of adolescence, which has the potential for profound implications into adulthood. SCFE patients are at risk of early joint degeneration and subsequent need for arthroplasty. The rate at which arthroplasty is required is not precisely known, but is estimated to be approximately 45% by 50 years after a slip.

Predictors of recurrent instability after acute patellofemoral dislocation in pediatric and adolescent patients.

Background: Patellofemoral instability is common in the pediatric and adolescent population, yet prognosis after the first dislocation has been difficult to determine.

Purpose: To describe the demographics of pediatric and adolescent patients with a first-time patellofemoral dislocation and to determine predictors of recurrent instability.

Study Design: Case-control study; Level of evidence, 3.