Material-Intrinsic NIR-Fluorescence Enables Image-Guided Surgery for Ceramic Fracture Removal.

Hip arthroplasty effectively treats advanced osteoarthritis and is therefore entitled as "operation of the 20th century." With demographic shifts, the USA alone is projected to perform up to 850 000 arthroplasties annually by 2030. Many implants now feature a ceramic head, valued for strength and wear resistance.

Validity of leg length measurement in the supine and standing position compared with pelvic survey X-ray after total hip arthroplasty.

Introduction: The correct adjustment of leg length is a major goal in the implantation of total hip replacements (THRs). Differences in leg length can lead to functional impairment and patient dissatisfaction. By determining leg length at an early stage, before the patient is discharged from hospital, compensatory measures such as the production of special insoles or orthopaedic footwear can be initiated promptly if there is a difference in leg length.

A Retrospective Analysis of the Association Between Male Facial Hair and the Incidence of Peri-Prosthetic Infections.

The wearing of male facial hair has been undergoing something of a renaissance for a number of years, with medical colleagues in the surgical disciplines being no exception. Meanwhile, there are a few reports in the literature that beards might have an increased bacterial colonization. This study aims to determine if wearing a beard leads to an increased rate of infection in total hip or knee arthroplasty.

"Koehlers teardrop is not a reliable landmark for assessing the centre of rotation after Total hip arthroplasty" - a retrospective radiological study.

Purpose: Various anatomical landmarks have become established in radiography for the assessment of cup positioning after total hip arthroplasty (THA). The most important one is Koehler's teardrop figure (KTF). However, there is a lack of data on the validity of this landmark, which is widely used clinically for assessing the centre of rotation of the hip.

The use of acetabular screws in total hip arthroplasty and its influence on wear and periacetabular osteolysis in the long-term follow-up.

Purpose: The cementless implantation of hip replacement cups may be performed with and without the additional use of acetabular screws. If the surgeon uses screws or not depends on variable factors. In general, the use of screws is intended to increase the primary stability of the cup.

An Isoelastic Monoblock Cup Retains More Acetabular and Femoral Bone Than a Modular Press-Fit Cup: A Prospective Randomized Controlled Trial.

Background: For cup revision after total hip arthroplasty, sufficiently good periacetabular bone stock is a prerequisite for fixation of the revision implant. Cementless cups can lead to a relevant reduction of peri-implant bone mineral density (BMD) through stress-shielding.

Methods: Fifty patients were included in this prospective randomized controlled trial.

Association Between Lumbar Spinal Degeneration and Anatomic Pelvic Parameters.

Study Design: Retrospective cohort study.

Objective: The objective was to prove the association between anatomic pelvis parameters and specific types of lumbar spinal degeneration.

Summary Of Background Data: Different spinopelvic sagittal profile types are suggested to be associated with specific degenerative lumbar spine pathologies.

Patient Obesity Influences Pelvic Lift During Cup Insertion in Total Hip Arthroplasty Through a Lateral Transgluteal Approach in Supine Position.

Background: Movement of the pelvis during implantation of total hip arthroplasty (THA) has a major influence on the positioning of the acetabular cup. Strong traction caused by retractors leads to iatrogenic pelvic lift and can thus be partly responsible for cup malpositioning. The objective of this study was to investigate such factors that influence pelvic lift.

Influence of Surgical Approach on Pelvic Lift in Hip Arthroplasty During Cup Insertion.

The position of the acetabular cup is a major factor in the long-term outcome of total hip arthroplasty (THA). Malpositioning of the acetabular cup frequently has been reported with the use of a minimally invasive implantation technique. It remains unclear whether the limited visibility or the increased retractor traction and thus tilting of the pelvis during cup implantation is the cause.

Course of pelvic lift during total hip arthroplasty.

Introduction: The position of the cup makes a major contribution to the success of total hip arthroplasty (THA). In conventional implantation of the prosthesis without navigation, the surgeon relies on the spatial position of the pelvis. However, iatrogenic manipulation of the pelvis during different surgical steps constantly changes the position of the pelvis during the operation.

CT Lesion Model-Based Structural Allografts: Custom Fabrication and Clinical Experience.

Background: Patients requiring knee and hip revision arthroplasty often present with difficult anatomical situations that limit options for surgery. Customised mega-implants may be one of few remaining treatment options. However, extensive damage to residual bone stock may also be present, and in such cases even customised prosthetics may be difficult to implant.