Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Online First™

Articles

What Are the Frequency, Associated Factors, and Mortality of Amputation and Arthrodesis After a Failed Infected TKA?

Min-Sun Son PhD, Edmund Lau MS, Javad Parvizi MD, Michael A. Mont MD, Kevin J. Bozic MD, MBA, Steven Kurtz PhD
24th February 2017, Symposium: Learning From Large-Scale Orthopaedic Databases

For patients with failed surgical treatment of an infected TKA, salvage operations such as arthrodesis or above-knee amputation (AKA) may be considered. Clinical and institutional factors associated with AKA and arthrodesis after a failed TKA have not been investigated in a large-scale population, and the utilization rate and trend of these measures are not well known.

Report of the Clinical and Functional Primary Outcomes in Men of the ACL-SPORTS Trial: Similar Outcomes in Men Receiving Secondary Prevention With and Without Perturbation Training 1 and 2 Years After ACL Reconstruction

Amelia J. H. Arundale PT, DPT, Kathleen Cummer PT, DPT, Jacob J. Capin PT, DPT, MS, Ryan Zarzycki PT, DPT, Lynn Snyder-Mackler PT, ATC, ScD
21st February 2017, Symposium: Improving Care for Patients With ACL Injuries: A Team Approach

Athletes often are cleared to return to activities 6 months after anterior cruciate ligament (ACL) reconstruction; however, knee function measures continue to improve up to 2 years after surgery. Interventions beyond standard care may facilitate successful return to preinjury activities and improve functional outcomes. Perturbation training has been used in nonoperative ACL injury and preoperative ACL reconstruction rehabilitation, but has not been examined in postoperative ACL reconstruction rehabilitation, specifically return to sport rehabilitation.

Report of the Primary Outcomes for Gait Mechanics in Men of the ACL-SPORTS Trial: Secondary Prevention With and Without Perturbation Training Does Not Restore Gait Symmetry in Men 1 or 2 Years After ACL Reconstruction

Jacob John Capin PT, DPT, MS, Ryan Zarzycki PT, DPT, Amelia Arundale PT, DPT, SCS, Kathleen Cummer PT, PhD, DPT, Lynn Snyder-Mackler PT, ScD, FAPTA
21st February 2017, Symposium: Improving Care for Patients With ACL Injuries: A Team Approach

Movement asymmetries during walking are common after anterior cruciate ligament (ACL) injury and reconstruction and may influence the early development of posttraumatic osteoarthritis. Preoperative neuromuscular training (like perturbation training, which is neuromuscular training requiring selective muscle activation in response to surface perturbations) improves gait asymmetries and functional outcomes among people who are ACL-deficient, but the effect of postoperative perturbation training on gait mechanics after ACL reconstruction is unknown.

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.

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.

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.