Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Online First™

Articles

Does Medicaid Insurance Confer Adequate Access to Adult Orthopaedic Care in the Era of the Patient Protection and Affordable Care Act?

Joseph T. Labrum BA, Taylor Paziuk BS, Theresa C. Rihn BS, JD, Alan S. Hilibrand MD, Alexander R. Vaccaro MD, PhD, MBA, Mitchell G. Maltenfort PhD, Jeffrey A. Rihn MD
21st February 2017, Clinical Research

A current appraisal of access to orthopaedic care for the adult patient receiving Medicaid is important, since Medicaid expansion was written into law by the Patient Protection and Affordable Care Act (PPACA).

Hamstring Autograft versus Patellar Tendon Autograft for ACL Reconstruction: Is There a Difference in Graft Failure Rate? A Meta-analysis of 47,613 Patients

Brian T. Samuelsen MD, MBA, Kate E. Webster PhD, Nick R. Johnson BS, Timothy E. Hewett PhD, Aaron J. Krych MD
15th February 2017, Symposium: Improving Care for Patients With ACL Injuries: A Team Approach

Bone-patellar tendon-bone (bone-tendon-bone) and four-strand hamstring tendon grafts (hamstring) are the most commonly utilized autografts for primary anterior cruciate ligament (ACL) reconstruction. Existing clinical trials, registry studies, and meta-analyses offer conflicting opinions regarding the most favorable graft choice.

Do Orthopaedic Oncologists Agree on the Diagnosis and Treatment of Cartilage Tumors of the Appendicular Skeleton?

Tomas Zamora MD, Julio Urrutia MD, Daniel Schweitzer MD, Pedro Pablo Amenabar MD, Eduardo Botello MD
15th February 2017, Clinical Research

Distinguishing a benign enchondroma from a low-grade chondrosarcoma is a common diagnostic challenge for orthopaedic oncologists. Low interrater agreement has been observed for the diagnosis of cartilaginous neoplasms among radiologists and pathologists, but, to our knowledge, no study has evaluated inter- and intraobserver agreement among orthopaedic oncologists grading these lesions using initial clinical and imaging information. Determining such agreement is important since it reflects the certainty in the diagnosis by orthopaedic oncologists. Agreement also is important as it will guide future treatment and prognosis, considering that there is no gold standard for diagnosis of these lesions.

Freezing Nitrogen Ethanol Composite May be a Viable Approach for Cryotherapy of Human Giant Cell Tumor of Bone

Po-Kuei Wu MD, Cheng-Fong Chen MD, Jir-You Wang PhD, Paul Chih-Hsueh Chen MD, Ming-Chau Chang MD, Shih-Chieh Hung MD, PhD, Wei-Ming Chen MD
14th February 2017, Clinical Research

Liquid nitrogen has been used as adjuvant cryotherapy for treating giant cell tumor (GCT) of bone. However, the liquid phase and ultrafreezing (−196° C) properties increase the risk of damage to the adjacent tissues and may lead to perioperative complications. A novel semisolid cryogen, freezing nitrogen ethanol composite, might mitigate these shortcomings because of less-extreme freezing. We therefore wished to evaluate freezing nitrogen ethanol composite as a coolant to determine its properties in tumor cryoablation.

Is Limb Salvage With Microwave-induced Hyperthermia Better Than Amputation for Osteosarcoma of the Distal Tibia?

Kang Han MD, PhD, Peiye Dang MS, Na Bian MS, Xiang Chen MD, PhD, Tongtao Yang MD, PhD, QingYu Fan MD, PhD, Yong Zhou MD, PhD, Tingbao Zhao MD, PhD, Pingshan Wang MD, PhD
13th February 2017, Clinical Research

Amputation has been the standard surgical treatment for distal tibia osteosarcoma owing to its unique anatomic features. Preliminary research suggested that microwave-induced hyperthermia may have a role in treating osteosarcoma in some locations of the body (such as the pelvis), but to our knowledge, no comparative study has evaluated its efficacy in a difficult-to-treat location like the distal tibia.

Does Extracellular DNA Production Vary in Staphylococcal Biofilms Isolated From Infected Implants versus Controls?

Beata Zatorska MSc, Marion Groger PhD, Doris Moser PhD, Magda Diab-Elschahawi MD, MSc, Luigi Segagni Lusignani MD, Elisabeth Presterl MD, MBA
13th February 2017, Basic Research

Prosthetic implant infections caused byandare major challenges for early diagnosis and treatment owing to biofilm formation on the implant surface. Extracellular DNA (eDNA) is actively excreted from bacterial cells in biofilms, contributing to biofilm stability, and may offer promise in the detection or treatment of such infections.

Editorial Comment: Symposium: The 3rd Annual Meeting of Pediatric Research in Sports Medicine (PRISM)

Matthew D. Milewski MD, Hank G. Chambers MD
13th February 2017, Symposium: The 3rd Annual Meeting of Pediatric Research in Sports Medicine (PRISM)

Exchangeable Femoral Neck (Dual-Modular) THA Prostheses Have Poorer Survivorship Than Other Designs: A Nationwide Cohort of 324,108 Patients

Sandrine Colas MSc, MPH, Assia Allalou MSc, Antoine Poichotte MD, Philippe Piriou MD, PhD, Rosemary Dray-Spira MD, PhD, Mahmoud Zureik MD, PhD
13th February 2017, Clinical Research

Exchangeable neck stems, defined as those with a dual taper (that is, a modular junction between the femoral head and the femoral neck and an additional junction between the neck and the stem body), were introduced in THA to improve restoration of joint biomechanics (restoring anteversion, offset, and limb length) and reduce the risk of dislocation. However exchangeable necks have been reported to result in adverse effects such as stem fractures and acute local tissue reaction. Whether they result in a net improvement to or impairment of reconstructive survivorship remains controversial.

Use of Compressive Osseointegration Endoprostheses for Massive Bone Loss From Tumor and Failed Arthroplasty: A Viable Option in the Upper Extremity

Krista A. Goulding MD, MPH, Adam Schwartz MD, Steven J. Hattrup MD, R. Lor Randall MD, Donald Lee MD, Damian M. Rispoli MD, Daniel M. Lerman MD, Christopher Beauchamp MD
13th February 2017, Clinical Research

Endoprostheses using principles of compressive osseointegration have shown good survivorship in several studies involving the lower extremity; however, no series to our knowledge have documented the use of this technology in the management of massive bone loss in the upper limb.