Failure of Total Hip Arthroplasty due to Delamination and Wear of Titanium Nitride-coated Titanium Heads: A Case Series.

Introduction: We present the case studies of three patients requiring revision for premature failure of total hip arthroplasty (THA).

Case Report: All patients received titanium nitride (TiN)-coated heads made of titanium alloy TiALV as part of their index total hip replacements. At the time of revision surgery, intraoperative findings included partial or complete delamination of the TiN head coating and wear/deformation of the TiALV heads.

Both Labral Debridement and Labral Repair Result in >90% Total Hip Arthroplasty-free Survival at 5-Year Follow-Up: An Analysis of the German Cartilage Registry (KnorpelRegister DGOU).

Purpose: To compare clinical outcome parameters between labral debridement and repair by analyzing the dataset of a multinational registry.

Methods: The data are based on the hip module of the German Cartilage Registry (KnorpelRegister DGOU). The register included patients designated for cartilage or femoroacetabular impingement surgery (up to July 1, 2021; n = 2725).

Distraction Gap Needed for Safe Central Compartment Access in Hip Arthroscopy.

Background: Sufficient distraction of the hip is the key to a safe central compartment (CC) approach in hip arthroscopy. However, an adequate distraction gap has not been scientifically identified.

Purpose: To determine the sufficient amount of distraction that could predict a successful CC access as well as to identify the risk factors for a failed or difficult CC access.

Why Is There a Range in Time Returning to Preoperative Activity Habits After Femoroacetabular Impingement Treatment in Recreational Athletes?

Context: Professional athletes showed excellent results after hip preserving procedures. However, there is still a lack of knowledge regarding the rate of return to activity and the rehabilitation time of recreational athletes. Thus, the aim of this study was to investigate factors that were associated with an extended return-to-activity time in nonprofessional athletes.

The Scientific Evolution of Periacetabular Osteotomy: A Global Review.

It is well-known that hip disorders are frequently of bony origin related to an underlying pathomorphology. A fundamental understanding of morphology and biomechanics is therefore of essential importance for a targeted approach in defining treatment plans. Treatment is frequently based on altering bony morphology, for which a set of effective techniques have been proposed.