Increased Risk of Femoral Neck Stress Fractures in Patients With Cam or Pincer Morphology.

Previous studies suggest a relationship between femoroacetabular impingement (FAI) and femoral neck stress fractures (FNSF), due to pathologic biomechanics in the setting of femoral head abutment (cam morphology) and/or acetabular overcoverage (pincer morphology). The purpose of this study is to evaluate the association between cam or pincer morphology and FNSF, compared to a control group of patients without hip pain. A retrospective review of the electronic medical record at a single institution was queried for patients with FNSF over a 10-year time period from January 2011-2021.

Simultaneous Bilateral T, T, and T Relaxation Mapping of Hip Joint With 3D-MRI Fingerprinting.

Background: Three-dimensional MR fingerprinting (3D-MRF) has been increasingly used to assess cartilage degeneration, particularly in the knee joint, by looking into multiple relaxation parameters. A comparable 3D-MRF approach can be adapted to assess cartilage degeneration for the hip joint, with changes to accommodate specific challenges of hip joint imaging.

Purpose: To demonstrate the feasibility and repeatability of 3D-MRF in the bilateral hip jointly we map proton density (PD), T, T, T, and ∆B in clinically feasible scan times.

Editorial Commentary: Acetabular Cartilage Delamination in Patients Having Femoroacetabular Impingement Syndrome Surgery Requires a Single-Stage Solution.

Acetabular cartilage delamination (ACD) can result in focal chondral defects, increasing contact stresses and contributing to osteoarthritis. This is commonly associated with femoroacetabular impingement, particularly with cam deformities due to shearing of the cam on the acetabulum. Additionally, ACD associated with labral tears or chondrolabral separation, when untreated, can compromise labral repair outcomes.

Prospective Evaluation of Clinical Outcomes of the Subchondroplasty Procedure for Treatment of Symptomatic Bone Marrow Lesions of the Knee.

Bone marrow lesions (BMLs) have a strong correlation to patient-reported pain, functional limitations, joint deterioration, and rapid progression to total knee arthroplasty. The Subchondroplasty (SCP) procedure uses AccuFill, a calcium phosphate bone substitute material (BSM), to treat bone defects such as microtrabecular fractures and BML. This observational, prospective, multicenter, cohort study evaluated the effect of the SCP procedure at the 2-year follow-up for 70 patients with knee BML.

A high proportion of patients demonstrate recall bias in the retrospective collection of patient-reported outcomes following hip arthroscopy.

Purpose: The aim of this study is to assess agreement between retrospectively and prospectively collected patient-reported outcome measures (PROMs) following hip arthroscopy for femoroacetabular impingement syndrome (FAIS).

Methods: Patients undergoing hip arthroscopy from 2021 to 2023 for FAIS completed preoperative PROMs, including the modified Harris Hip Score (mHHS) and the Non-Arthritic Hip Score (NAHS). Post-operatively, patients were surveyed and asked to recall their preoperative hip function.