Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Knee 442 articles


Are Joint Structure and Function Related to Medial Knee OA Pain? A Pilot Study

Rebecca Avrin Zifchock PhD, Yatin Kirane MBBS, DOrtho, PhD, Howard Hillstrom PhD

Although the severity of knee osteoarthritis (OA) usually is assessed using different measures of joint structure, function, and pain, the relationships between these measures are unclear.

All-Polyethylene Tibial Components in Obese Patients Are Associated With Low Failure at Midterm Followup

David F. Dalury MD, Kimberly K. Tucker MD, Todd C. Kelley MD

In the United States, the obese population has increased markedly over the last four decades, and this trend continues. High patient weight places additional stress on TKA components, which may lead to increased polyethylene wear, osteolysis, radiolucencies, and clinical failure. Metal-backed tibial components and all-polyethylene tibial components in the general population have comparable osteolysis and failure, but it is unclear whether these components yield similar osteolysis and failure in obese patients.

Lateral Unicompartmental Knee Arthroplasty Relieves Pain and Improves Function in Posttraumatic Osteoarthritis

Sebastien Lustig MD, PhD, Sebastien Parratte MD, PhD, Robert A. Magnussen MD, Jean-Noel Argenson MD, Philippe Neyret MD

Posttraumatic arthritis secondary to lateral tibial plateau fracture malunion causes pain and limited function for patients. It is sometimes technically challenging to correct malalignment in these patients with advanced arthritis using osteotomies. Lateral unicompartmental knee arthroplasty (UKA) may be an option to treat such patients.

No Long-term Difference Between Fixed and Mobile Medial Unicompartmental Arthroplasty

Sebastien Parratte MD, Vanessa Pauly MS, Jean-Manuel Aubaniac MD, Jean-Noel A. Argenson MD

Early studies in the literature reported relatively high early minor reintervention rate for the mobile-bearing unilateral knee arthroplasty (UKA) compared with short- and midterm survivorship after fixed- or mobile-bearing UKA. However, whether the long-term function and survivorship are similar is unclear.

Decreased Length of Stay After TKA Is Not Associated With Increased Readmission Rates in a National Medicare Sample

John S. Vorhies BA, Yun Wang PhD, James H. Herndon MD, MBA, William J. Maloney MD, James I. Huddleston MD

There is a trend toward decreasing length of hospital stay (LOS) after TKA although it is unclear whether this trend is detrimental to the overall postoperative course. Such information is important for future decisions related to cost containment.

Revision ACL Reconstruction in Skeletally Mature Athletes Younger Than 18 Years

Keith R. Reinhardt MD, Sommer Hammoud MD, Andrea L. Bowers MD, Ben-Paul Umunna BA, Frank A. Cordasco MD

Young, active, skeletally mature patients have higher failure rates after various surgical procedures, including stabilization for shoulder instability and primary ACL reconstruction. It is unclear whether young, active, skeletally mature patients share similarly high failure rates after revision ACL reconstruction.

Preoperative Patient Education Reduces In-hospital Falls After Total Knee Arthroplasty

Henry D. Clarke MD, Vickie L. Timm BSN, Brynn R. Goldberg MSN, Steven J. Hattrup MD

Inpatient hospital falls after orthopaedic surgery represent a major problem, with rates of about one to three falls per 1000 patient days. These falls result in substantial morbidity for the patient and liability for the institution.

Surgical Technique: Revision ACL Reconstruction With a Rectangular Tunnel Technique

Konsei Shino MD, Tatsuo Mae MD, Norimasa Nakamura MD

We developed the rectangular tunnel ACL reconstruction (RT ACLR) using a 10-mm wide bone-patellar tendon-bone (BTB) graft through rectangular tunnels with a rectangular aperture to reduce tunnel size: the cross-sectional area of the tunnels of 50 mm(5 × 10 mm) in RT ACLR is less than that of 79 mmin a conventional 10-mm round tunnel technique presuming the technique would be more suitable in revision ACLR with previous improperly placed tunnels.

Surgical Technique: Medial Collateral Ligament Reconstruction Using Achilles Allograft for Combined Knee Ligament Injury

Robert G. Marx MD, MSc, FRCSC, Iftach Hetsroni MD

Previous approaches for medial collateral ligament (MCL) reconstruction have been associated with extensive exposure, risk of donor site morbidity with autografts, loss of motion, nonanatomic graft placement, and technical complexity with double-bundle constructs. Therefore, we implemented a technique that uses Achilles allograft, small incisions, and anatomic insertions to reconstruct the MCL.

Single- versus Double-bundle ACL Reconstruction: Is There Any Difference in Stability and Function at 3-year Followup?

Alberto Gobbi MD, Vivek Mahajan MD, Georgios Karnatzikos MD, Norimasa Nakamura MD, PhD

Despite a number of studies comparing postoperative stability and function after anatomic double-bundle and single-bundle anterior cruciate ligament reconstruction (ACLR), it remains unclear whether double-bundle reconstruction improves stability or function.