Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Knee 450 articles


High Degree of Accuracy of a Novel Image-free Handheld Robot for Unicondylar Knee Arthroplasty in a Cadaveric Study

Jess H. Lonner MD, Julie R. Smith PhD, Frederic Picard MD, Brian Hamlin MD, Philip J. Rowe PhD, Philip E. Riches PhD

Surgical robotics has been shown to improve the accuracy of bone preparation and soft tissue balance in unicondylar knee arthroplasty (UKA). However, although extensive data have emerged with regard to a CT scan-based haptically constrained robotic arm, little is known about the accuracy of a newer alternative, an imageless robotic system.

Cruciate-retaining TKA Is an Option in Patients With Prior Patellectomy

Keith R. Reinhardt MD, Stephen J. Huffaker MD, PhD, Thomas S. Thornhill MD, Richard D. Scott MD

The recommendation for using posterior-stabilized (PS) implants in patellectomy patients undergoing total knee arthroplasty (TKA) is based on older case series with heterogeneous patient populations. The use of cruciate-retaining implants in these patients has not been evaluated with more contemporary implant designs.

Perioperative Morbidity and Mortality of Same-admission Staged Bilateral TKA

Lazaros A. Poultsides MD, Stavros G. Memtsoudis MD, Huong T. Do MA, Thomas P. Sculco MD, Mark P. Figgie MD

Controversy continues regarding the optimal timing of surgery for patients with symptomatic bilateral degenerative knee arthritis who are not considered eligible for same-day bilateral TKA (BTKA).

Are Revisions of Patellofemoral Arthroplasties More Like Primary or Revision TKAs

Sébastien Parratte MD, PhD, Alexandre Lunebourg MD, Matthieu Ollivier MD, Matthew P. Abdel MD, Jean-Noël A. Argenson MD, PhD

Patellofemoral arthroplasty (PFA) can be considered in patients with patellofemoral disease. However, the use of partial arthroplasty often causes concern among clinicians and patients that revision to total knee arthroplasty (TKA) will be needed and, if so, whether this revision will be straightforward or more complicated.

What Can Be Learned From Minimum 20-year Followup Studies of Knee Arthroplasty?

John J. Callaghan MD, Christopher T. Martin MD, Yubo Gao PhD, Andrew J. Pugely MD, Steve S. Liu MD, Devon D. Goetz MD, Scott S. Kelley MD, Richard C. Johnston MD

Long-term evaluation of knee arthroplasty should provide relevant information concerning the durability and performance of the implant and the procedure. Because most arthroplasties are performed in older patients, most long-term followup studies have been performed in elderly cohorts and have had low patient survivorship to final followup; the degree to which attrition from patient deaths over time in these studies might influence their results has been poorly characterized.

Knee Muscle Strength After Recent Partial Meniscectomy Does Not Relate to 2-year Change in Knee Adduction Moment

Michelle Hall MSc, Tim V. Wrigley MSc, Ben R. Metcalf BSc, Rana S. Hinman PhD, Alasdair R. Dempsey PhD, Peter M. Mills PhD, Flavia M. Cicuttini PhD, David G. Lloyd PhD, Kim L. Bennell PhD

Knee muscle weakness and a greater external knee adduction moment are suggested risk factors for medial tibiofemoral knee osteoarthritis. Knee muscle weakness and a greater knee adduction moment may be related to each other, are potentially modifiable, and have been observed after arthroscopic partial meniscectomy.

Risk Factors for the Development of Heterotopic Ossification After Knee Dislocation

Daniel B. Whelan MD, Andrew P. Dold MD, Tomce Trajkovski MD, Jas Chahal MD

Results of treatment for acute knee dislocations and multiligament knee injuries may be influenced by a multitude of patient- and injury-related factors, including neurologic function, vascular status, ipsilateral fractures, and joint stability. The development of heterotopic ossification (HO) may nullify any benefits of reconstruction, because it can cause stiffness and discomfort. Identifying factors associated with HO after knee dislocation may help identify patients who might benefit from prophylaxis.

Is Single-stage Revision According to a Strict Protocol Effective in Treatment of Chronic Knee Arthroplasty Infections?

Fares Sami Haddad FRCS (Tr&O), Mohamed Sukeik MRCSEd, Sulaiman Alazzawi MRCSEd

The increasing number of patients experiencing periprosthetic total knee arthroplasty (TKA) infections and the cost of treating them suggest that we seek alternatives to two-stage revision. Single-stage revision is a potential alternative to the standard two-stage procedure because it involves only one surgical procedure, so if it is comparably effective, it would be associated with less patient morbidity and lower cost.

Preoperative Pain and Function Profiles Reflect Consistent TKA Patient Selection Among US Surgeons

David C. Ayers MD, Wenjun Li PhD, Leslie Harrold MD, MPH, Jeroan Allison MD, MS, Patricia D. Franklin MD, MBA, MPH

As the number of primary total knee arthroplasties (TKAs) performed in the United States increases, policymakers have questioned whether the indications and timing of TKA have evolved so that surgery is offered earlier.

New Total Knee Arthroplasty Designs: Do Young Patients Notice?

Ryan M. Nunley MD, Denis Nam MD, Keith R. Berend MD, Adolph V. Lombardi MD, Douglas A. Dennis MD, Craig J. Della Valle MD, Robert L. Barrack MD

Although the volume of total knee arthroplasties (TKAs) performed in the United States continues to increase, recent reports have shown the percentage of patients who remain “unsatisfied” is as high as 15% to 30%. Recently, several newer implant designs have been developed to potentially improve patient outcomes.