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Clinical, Radiographic, and Patient-Reported Outcomes Associated with a Handheld Image-free Robotic-Assisted Surgical System in Total Knee Arthroplasty
One of the primary aims of total knee arthroplasty (TKA) is restoration of the mechanical axis of the lower limb. Maintenance of the mechanical axis within 3 ° of neutral has been shown to result in improved clinical results and implant longevity. Handheld image-free robotic-assisted total knee arthroplasty (HI-TKA) is a novel way of performing TKA in the era of modern robotic-assisted TKA. The aim of this study is to assess the accuracy of achieving ta rgeted alignment, component placement, clinical outcomes, as well as patient satisfaction after HI-TKA. (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - January 31, 2023 Category: Orthopaedics Authors: Ittai Shichman, Vinaya Rajahraman, James Chow, David W. Fabi, Mark E. Gittins, Joseph E. Burkhardt, Bertrand P. Kaper, Ran Schwarzkopf Source Type: research

Short-to Mid-Term Survivorship of a Patient-specific Unicompartmental Knee Arthroplasty Implant Cast from a Three-Dimensional Printed Mold
The purpose of this study was to determine early survivorship and complication rates associated with the implantation of a new patient-specific unicompartmental knee implant cast from a three-dimensional (3D) printed mold, introduced in 2012. We retrospectively reviewed 92 consecutive patients who underwent unicompartmental knee arthroplasty (UKA) with a patient-specific implant cast from a 3D printed mold between September 2012 and October 2015. The early results of a patient-specific UKA implant were favorable in our cohort, with survivorship free from reoperation of 97% at an average 4.5  years follow-up. Future studie...
Source: Orthopedic Clinics of North America - January 31, 2023 Category: Orthopaedics Authors: Alexandre Barbieri Mestriner, Brielle Antonelli, Pierre-Emmanuel Schwab, Antonia F. Chen, Todd Jones, Jakob Ackermann, Gergo Bela Merkely, Jeffrey K. Lange Source Type: research

Heterotopic Ossification after Trauma
This article discusses the current literature on the pathophysiology, prophylaxis, treatment, and epidemiology of postoperative HO following orthopedic trauma. (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - November 17, 2022 Category: Orthopaedics Authors: Jad Lawand, Zachary Loeffelholz, Bilal Khurshid, Eric Barcak Source Type: research

Preface
This issue of Orthopedic Clinics of North America is devoted mostly to pathologic conditions of bone, with topics ranging from heterotopic ossification after trauma to oncologic lesions in the upper and lower extremity, as well as those presenting in children. Other topics included are knee arthritis and surgical site infections. (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - November 17, 2022 Category: Orthopaedics Authors: Frederick M. Azar Source Type: research

Orthopedic Clinics of North America
www.orthopedic.theclinics.com (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - November 17, 2022 Category: Orthopaedics Source Type: research

Copyright
ELSEVIER (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - November 17, 2022 Category: Orthopaedics Source Type: research

Editorial Board
Chief of Staff, Campbell Clinic, University of Tennessee Health Science Center, Campbell Clinic Department of Orthopaedic Surgery and Biomedical Engineering, Memphis, Tennessee (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - November 17, 2022 Category: Orthopaedics Source Type: research

Contributors
FREDERICK M. AZAR, MD (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - November 17, 2022 Category: Orthopaedics Source Type: research

Contents
Frederick M. Azar (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - November 17, 2022 Category: Orthopaedics Source Type: research

Forthcoming Issues
April 2023 (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - November 17, 2022 Category: Orthopaedics Source Type: research

Management of Proximal Humeral Oncologic Lesions
The proximal humerus is a common location for primary tumors, benign lesions, and metastatic disease. Advances in neoadjuvant and adjuvant therapy have allowed for limb-salvage surgery in most of the cases. There are numerous of options for surgical management of proximal humerus lesions and the decision to pursue one over another depends on factors such as age, comorbidities, pathology, location within the proximal humerus, planned resection margins/size of defect, and bone quality. Long-term outcomes for these techniques tend to be retrospective comparative studies, with recent studies highlighting the improved outcomes ...
Source: Orthopedic Clinics of North America - October 25, 2022 Category: Orthopaedics Authors: Alexandra M. Arguello, Matthew T. Houdek, Jonathan D. Barlow Source Type: research

Management of Scapular Tumors
Scapular resections are large oncologic undertakings. Due to the soft tissue coverage of the scapula, tumors are often able to be resected with a negative margin. Involvement of the brachial plexus and axillary vessels is rare, allowing for a limb-salvage surgery in most cases. Functional outcomes are based on the magnitude of resection; patients undergoing a partial scapulectomy and those with glenoid preservation demonstrate improved outcomes compared to patients undergoing a total scapulectomy or glenoid resection. Although scapular endoprosthetics are available, there is limited data to support their routine use. (Sour...
Source: Orthopedic Clinics of North America - October 25, 2022 Category: Orthopaedics Authors: Matthew T. Houdek, Benjamin K. Wilke, Jonathan D. Barlow Source Type: research

Fixation Principles for Pathologic Fractures  in Metasatic Disease
The management of pathologic fractures differs from nonpathologic fractures with respect to preoperative evaluation, surgical strategies, adjuvant therapies, and complication rates. These issues must be understood to provide appropriate musculoskeletal care for patients with metastatic disease. (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - October 25, 2022 Category: Orthopaedics Authors: Kendall M. Masada, Sarah R. Blumenthal, Cara A. Cipriano Source Type: research

Benign Bone Lesions Found in Childhood
Benign bone tumors are a wide variety of usually asymptomatic neoplasms, which in most cases are diagnosed due to secondary causes. As such, their real incidence is unknown. In the majority of cases, plain radiographs are enough for diagnosis; more advanced imaging, such as CT scan or MRI is sometimes performed for equivocal lesions. Treatment approach depends on whether the lesion is symptomatic and the risk of further progression, or development of secondary malignancies. When non expectant management is decided, treatment options include minimally invasive methods and surgery. (Source: Orthopedic Clinics of North America)
Source: Orthopedic Clinics of North America - October 23, 2022 Category: Orthopaedics Authors: Marcos R. Gonzalez, Ty K. Subhawong, Juan Pretell-Mazzini Source Type: research

Giant Cell Tumor of the Distal Radius
Giant cell tumor of the distal radius presents a significant challenge in management due to high risk of recurrence and potential loss of function. Shared decision-making guides management, particularly for more advanced lesions. Intralesional curettage can optimize wrist function but at the cost of a higher recurrence risk. Wide resection decreases local recurrence but has higher complication rates regardless of reconstruction method. No functional difference exists between motion-preserving procedures and arthrodesis; therefore, patients should be clearly informed of the risks and benefits of each treatment option. (Sour...
Source: Orthopedic Clinics of North America - October 23, 2022 Category: Orthopaedics Authors: Matthew C. Hess, Lisa Kafchinski, Erin Ransom Source Type: research