Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Knee 443 articles


Do Patient Expectations About Arthroplasty at Initial Presentation for Hip or Knee Pain Differ by Sex and Ethnicity?

Carlos J. Lavernia MD, Juan S. Contreras MD, Javad Parvizi MD, Peter F. Sharkey MD, Robert Barrack MD, Mark D. Rossi PhD

Many studies show gender and ethnic differences in healthcare utilization and outcomes. Patients’ presurgical cognitions regarding surgical outcomes also may vary by gender and ethnicity and play a role in explaining utilization and outcome differences. However, it is unclear whether and to what extent gender and ethnicity play a role in patients’ presurgical cognitions.

Surgical Technique: Lateral Retinaculum Release in Knee Arthroplasty Using a Stepwise, Outside-in Technique

Rajesh N. Maniar MS(Orth), MCh(Orth), Tushar Singhi MS, Suyog Shashimohan Rathi MS, Jayesh Vinod Baviskar MS, Ravi Mohan Nayak MS

Lateral release of a tight lateral retinaculum in a TKA is intended to correct patellar maltracking but the widely used inside-out technique has associated risks. We describe an alternate stepwise outside-in technique, with titrated release intended to maximize the chance of preserving the superior lateral genicular artery (SLGA).

Does Extracorporeal Shock Wave Therapy Enhance Healing of Osteochondritis Dissecans of the Rabbit Knee?: A Pilot Study

Roger Lyon MD, Xue Cheng Liu MD, PhD, Martin Kubin MD, Joseph Schwab MD

Severe osteochondritis dissecans (OCD) in children and adolescents often necessitates surgical interventions (ie, drilling, excision, or débridement). Since extracorporeal shock wave therapy (ESWT) enhances healing of long-bone nonunion fractures, we speculated ESWT would reactivate the healing process in OCD lesions.

Robotic-assisted TKA Reduces Postoperative Alignment Outliers and Improves Gap Balance Compared to Conventional TKA

Eun-Kyoo Song MD, PhD, Jong-Keun Seon MD, PhD, Ji-Hyeon Yim MD, PhD, Nathan A. Netravali PhD, William L. Bargar MD

Several studies have shown mechanical alignment influences the outcome of TKA. Robotic systems have been developed to improve the precision and accuracy of achieving component position and mechanical alignment.

Durability of a Cruciate-retaining TKA With Modular Tibial Trays at 20 Years

John J. Callaghan MD, Mitchell W. Beckert BS, David W. Hennessy MD, Devon D. Goetz MD, Scott S. Kelley MD

Modular tibial trays have been utilized in TKA for more than 20 years. However, concerns have been raised about modular implants and it is unclear whether these devices are durable in the long term.

Sagittal Cutting Error Changes Femoral Anteroposterior Sizing in Total Knee Arthroplasty

Hiroyuki Nakahara MD, Shuichi Matsuda MD, PhD, Ken Okazaki MD, PhD, Yasutaka Tashiro MD, PhD, Yukihide Iwamoto MD, PhD

Prosthetic alignment and size are important factors in achieving a long-term survival in TKA. Although two-dimensional and three-dimensional (3-D) planning for component sizing has been introduced, it sometimes is difficult to cut the bones accurately according to preoperative planning. It is unclear whether changing sagittal alignment of the distal femur affects the AP dimension and sizing of the prepared bone.

The 2012 Mark Coventry Award: A Retrieval Analysis of High Flexion versus Posterior-stabilized Tibial Inserts

Nicholas R. Paterson BScH, Matthew G. Teeter BScH, PhD, Steven J. MacDonald MD, FRCSC, Richard W. McCalden MD, MPhil(Edin), FRCSC, Douglas D. R. Naudie MD, FRCSC

High flexion (HF) implants were introduced to increase ROM and patient satisfaction, but design changes to the implant potentially have deleterious effects on polyethylene wear. It is unclear whether the HF implants affect wear.

Failure of Irrigation and Débridement for Early Postoperative Periprosthetic Infection

Thomas K. Fehring MD, Susan M. Odum MEd, Keith R. Berend MD, William A. Jiranek MD, Javad Parvizi MD, Kevin J. Bozic MD, Craig J. Della Valle MD, Terence J. Gioe MD

Irrigation and débridement (I&D) of periprosthetic infection (PPI) is associated with infection control ranging from 16% to 47%. Mitigating factors include organism type, host factors, and timing of intervention. While the influence of organism type and host factors has been clarified, the timing of intervention remains unclear.

Assessing the Gold Standard: A Review of 253 Two-Stage Revisions for Infected TKA

Tahir Mahmud MBBS, FRCS(Tr&Orth), Matthew C. Lyons MBBS, FRACS, Douglas D. Naudie MD, FRCSC, Steven J. MacDonald MD, FRCSC, Richard W. McCalden MD, FRCSC

Periprosthetic joint infection has been the leading cause of failure following TKA surgery. The gold standard for infection control has been a two-staged revision TKA. There have been few reports on mid- to long-term survivorship, functional outcomes, and fate of patients with a failed two-stage revision TKA.

Extent of Tibiofemoral Osteoarthritis Before Knee Arthroplasty: Multicenter Data from the Osteoarthritis Initiative

Daniel L. Riddle PhD, William A. Jiranek MD, Robert S. Neff MD, Derek Whitaker MD, Jason R. Hull MD

Knee arthroplasty traditionally is recommended for persons with substantial disability and disabling pain attributable to moderate or severe osteoarthritis (OA). Pain and functional status after arthroplasty may be influenced by the extent of knee OA before surgery and recent evidence suggests persons with less severe knee OA before undergoing TKA have greater pain levels and worse function than persons with more severe knee OA.