Three-dimensional-printed patient-specific instrumentation is an accurate tool to reproduce femoral bone tunnels in multiple-ligament knee injuries.

Purpose: Multiple-ligament knee reconstruction techniques often involve the creation of several bone tunnels for various reconstruction grafts. A critical step in this procedure is to avoid short tunnels or convergences among them. Currently, no specific template guide to reproduce these angulations has been reported in the literature, and the success of the technique still depends on the experience of the surgeon.

Complications of standard versus long cephalomedullary nails in the treatment of unstable extracapsular proximal femoral fractures: A randomized controlled trial.

Aims: To compare in a prospective randomized trial the mechanical complications in patients with unstable extracapsular proximal femur fractures without subtrochanteric extension (AO/OTA 31-A2 and 31-A3) METHODS: We prospectively studied 182 patients with unstable extracapsular proximal femur fractures without fractures lines extending more than 3 cm below the lesser trochanter, randomized to receive either a 'standard' (240 mm) nail or a long nail and followed them up for 1 year.

Results: We found no difference in the incidence of mechanical or general complications between the two groups, no cut-outs, no fractures of the tip the implant, 1 cut-through and 2 malrotations in the LN group, 2 non-unions that were reoperated, one on each group. The commonest complication was blade lateral migration, 13 (14%) patients in SN and 6 (9%) in the LN.

A customized percutaneous three-dimensional-printed guide for scaphoid fixation versus a freehand technique: a comparative study.

The aim of this study was to compare the accuracy and reliability of percutaneous fixation of minimally displaced scaphoid fractures using a customized three-dimensional (3-D)-printed guide with a conventional freehand method. A prospective cohort of ten patients underwent scaphoid fixation with the aid of a customized 3-D-printed guide. The final screw position, total surgery time (minutes) and fluoroscopy time (seconds) was compared with a retrospective cohort of ten patients who underwent fixation with a conventional technique.

3D printing innovation: New insights into upper extremity surgery planning.

Introduction: Surgical planning relies on the use of images to develop an action plan prior to the actual surgical intervention. Imaging technology improvement together with the development of specific software to treat three dimensional images has increased the accuracy and capabilities of pre-surgical planning. In addition to this, 3D printing allows us to manufacture customized surgical tools to implement and aid in the success of surgeries.

Integrated 3D printing solution to mitigate shortages of airway consumables and personal protective equipment during the COVID-19 pandemic.

Background: To cope with shortages of equipment during the COVID-19 pandemic, we established a nonprofit end-to-end system to identify, validate, regulate, manufacture, and distribute 3D-printed medical equipment. Here we describe the local and global impact of this system.

Methods: Together with critical care experts, we identified potentially lacking medical equipment and proposed solutions based on 3D printing.

"Can patients learn how to reduce their shoulder dislocation?" A one-year follow-up of the randomized clinical trial between the Boss-Holzach-Matter self-assisted technique and the Spaso method.

Objective: The aim of this study was to assess the effectiveness and reproducibility of self-assisted Boss-Holzach-Matter (BHM) technique compared with the Spaso (Sp) method for shoulder dislocation.

Methods: We conducted a follow-up at 1 year from the randomization of 60 patients with shoulder dislocation enrolled in the study "Teaching patients to reduce a shoulder dislocation." Half of these patients had been taught the self-assisted technique, whereas the other half had been treated by a physician's manipulative maneuver for reduction.

Long-Term Evaluation Following Partial Trapeziectomy and Suspension Arthroplasty for Trapeziometacarpal Osteoarthritis: An Observational Study.

Purpose: Partial trapeziectomy is performed to decrease the risk for first ray collapse. However, the incidence of scaphotrapezoidal (ST) joint osteoarthritis (OA) in the presence of advanced trapeziometacarpal joint OA is around 40%. The purposes of this study were to analyze the progression of the ST joint after partial trapeziectomy and to establish the potential link between radiographic findings and patient outcomes.

Partial Versus Total Trapeziectomy With Interposition Arthroplasty for Trapeziometacarpal Osteoarthritis Grade II to III Eaton-Littler: A Clinical Trial.

Purpose: Total trapeziectomy is the most widely used technique to treat isolated thumb trapeziometacarpal joint osteoarthritis. However, this technique has been associated with proximal migration of the thumb metacarpal, which has led some physicians to consider partial trapeziectomy as a valid alternative. The purpose of this study was to assess whether partial trapeziectomy improves final key pinch strength compared with total trapeziectomy.