Early Results of a Patient-Specific Total Knee Arthroplasty Implant Cast From a 3D-Printed Mold.

Background: The second generation of a custom total knee arthroplasty (TKA) implant cast from a 3D-printed mold was introduced into the market in 2012. The purpose of this retrospective study was to investigate short- to mid-term survivorship and complication rates of this novel implant.

Methods: This study is a retrospective analysis of 314 TKA procedures (264 patients) performed by a single surgeon using a customized TKA from September 2012 to November 2015.

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.

A Multicenter Prospective Investigation on Patient Physical and Mental Health After Girdlestone Resection Arthroplasty.

Background: Girdlestone resection arthroplasty is a salvage procedure for hip periprosthetic joint infection (PJI) that controls infection and reduces chronic pain, but may result in limited postoperative joint function. The aim of this study was to assess physical function and mental health after Girdlestone.

Methods: This was a multicenter, prospective study evaluating patients with Girdlestone.

Similar 20-year survivorship for single and bilateral total knee arthroplasty.

Background: Long-term follow-up after total knee arthroplasty (TKA) is crucial to providing survivorship updates on available TKA implants to guide patient expectations when undergoing TKA. The purpose of this study was to compare implant survivorship between patients undergoing primary single, simultaneous bilateral, and staged bilateral TKA with 15-year minimum follow-up.

Methods: This retrospective study included 826 patients (n = 1089) who underwent primary single (n = 454), simultaneous bilateral (n = 266), or staged bilateral (n = 369) TKA using a single TKA system by a single surgeon from 1991-2005 with 15-year minimum follow-up.

Comparing the Efficacy of Articulating Spacer Constructs for Knee Periprosthetic Joint Infection Eradication: All-Cement vs Real-Component Spacers.

Background: The most common treatment for periprosthetic joint infection (PJI) after total knee arthroplasty (TKA) is a 2-stage revision. Few studies have compared different articulating spacer constructs. This study compares the outcomes of real-component and all-cement articulating spacers for TKA PJI treatment.

Weight loss before total joint arthroplasty using a remote dietitian and mobile app: study protocol for a multicenter randomized, controlled trial.

Background: The months prior to elective surgery may present an opportunity for patients to initiate behavior changes that will simultaneously ready them for surgery and improve their overall health status. An upcoming elective total joint arthroplasty (TJA) may serve as motivation for patients with severe obesity (body mass index [BMI]> 40 kg/m) to lose weight, as it may optimize clinical outcomes following TJA and help them become eligible for TJA since some surgeons use a BMI of 40 kg/m as a cut-off for offering surgery in an effort to optimize outcomes.

Methods: The purpose of this multicenter randomized, controlled trial is to assess the feasibility and efficacy of a 12-week remote dietitian (RD) supervised dietary and physical activity weight loss intervention and mobile app for 60 patients with severe obesity prior to undergoing TJA.

Reducing the risk of infection after total joint arthroplasty: preoperative optimization.

Total joint arthroplasty (TJA) is one of the most commonly performed procedures in orthopedic surgery, and as the demand for TJA increases over time, the number of concurrent complications such as surgical infection will also increase. There are multiple risk factors that independently increase the risk of surgical site infection (SSI) and periprosthetic joint infection (PJI) after surgery. These modifiable risk factors can be identified in preoperative clinic screening visits that gives physicians the opportunity to provide specific intervention that can decrease patient infection risk.