Promising radiological outcome after repair of acetabular chondral defects by microfracture augmented with chitosan-based scaffold: mid-term T2 mapping evaluation.

Purpose: Radiological evaluation of the repair tissue produced after arthroscopic treatment of acetabular chondral lesions associated with femoroacetabular impingement (FAI) by the chitosan-based scaffold.

Methods: Patients of age 18-55 years with clinical and radiological features of FAI and non-arthritic non-dysplastic hips were selected for arthroscopic treatment. Full-thickness acetabular chondral defects were filled with chitosan-based scaffold material after microfracture.

Rehabilitation protocols in unstable trochanteric fractures treated with cephalomedullary nails in elderly: current practices and outcome.

Background: Optimal rehabilitation treatment after surgery for fixation of unstable trochanteric fractures is challenging in elderly patients.

Purpose: The objective of this study is to analyse the existing literature on available rehabilitation protocols with regards to permitting or restricting early weight bearing following fixation of unstable trochanteric fractures treated by the use of cephalomedullary nails in patients at least 65 years of age.

Methods: A systematic review was performed based on the checklist of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA).

Femoroacetabular Impingement: What the Surgeon Wants to Know.

Femoroacetabular impingement (FAI) is increasingly recognized as a risk factor for early hip degeneration in young active patients. The diagnosis depends on clinical examination and proper imaging that should be able to identify abnormal and sometimes subtle morphological changes. Labral tears and cartilage lesions rarely occur without underlying bone abnormalities.

Arthroscopic Repair of Acetabular Cartilage Lesions by Chitosan-Based Scaffold: Clinical Evaluation at Minimum 2 Years Follow-up.

Purpose: To evaluate the functional outcome of using chitosan-based material in our patients after 2 years of follow-up.

Methods: Nonarthritic nondysplastic femoroacetabular impingement patients with an acetabular chondral lesion, 18 to 55 years of age, were included for arthroscopic repair between May 2013 and July 2015. Full-thickness chondral defects ≥2 cm were filled with chitosan-based implant after microfractures.

Cam Femoroacetabular Impingement as a Possible Explanation of Recalcitrant Anterior Knee Pain.

We present a case of a patient with chronic anterior knee pain (AKP) recalcitrant to conservative treatment who returned to our office for severe hip pain secondary to Cam femoroacetabular impingement (Cam FAI) at 10 months after the onset of knee pain. This case highlights the fact that the main problem is not in the patella but in the hip in some patients with AKP. We hypothesize that there is an external femoral rotation in order to avoid the impingement and therefore the hip pain in patients with Cam FAI.

Reliability of Tönnis classification in early hip arthritis: a useless reference for hip-preserving surgery.

Introduction: The Tönnis classification is widely accepted for grading hip arthritis, but its usefulness as a reference in hip-preserving surgery is yet to be demonstrated. We aimed to evaluate reproducibility of the Tönnis classification in early stages of hip osteoarthritis, and thus determine whether it is a reliable reference for hip-preserving surgery.

Materials And Methods: Three orthopaedic surgeons with different levels of experience examined 117 hip X-rays that were randomly mixed of two groups: a group of 31 candidates for hip-preserving surgery and a control group of 30 patients that were asymptomatic with respect to the hip joint.

A Novel Association between Femoroacetabular Impingement and Anterior Knee Pain.

Background. For a long time it has been accepted that the main problem in the anterior knee pain (AKP) patient is in the patella. Currently, literature supports the link between abnormal hip function and AKP.

Arthroscopic Treatment of Hip Chondral Defects With Bone Marrow Stimulation and BST-CarGel.

Microfracture, the current standard of care for the treatment of non-degenerative chondral lesions in the hip joint, is limited by the poor quality of the filling fibrocartilaginous tissue. BST-CarGel (Piramal Life Sciences, Laval, Quebec, Canada) is a chitosan-based biopolymer that, when mixed with fresh, autologous whole blood and placed over the previously microfractured area, stabilizes the blood clot and enhances marrow-triggered wound-healing repair processes. BST-CarGel has been previously applied in the knee, with statistically significant greater lesion filling and superior repair tissue quality compared with microfracture treatment alone.

Promising short-term results following selective bundle reconstruction in partial anterior cruciate ligament tears.

Background: The different functions of the two anterior cruciate ligament (ACL) bundles have increased interest in tears of only one of these two bundles. The purpose of this study was to assess the outcome of selective reconstruction of an injured bundle of isolated anteromedial bundle (AMB) or posterolateral bundle (PLB) tears.

Methods: Consecutive series of 147 ACL reconstructions was prospectively analyzed.

There is no relation between mild malalignment and meniscal extrusion in trauma emergency patients.

Objective: To evaluate whether an alteration of the lower limb axis is associated with meniscal extrusion.

Materials And Methods: Ninety-four patients who had complained of knee pain with good knee function and had a knee magnetic resonance image (MRI) and a full-length X-ray taken of the lower limb were included in the study. Meniscal extrusion was measured in the coronal MRI.

Myxoid tumor associated to migration of a suspensory fixation device of a reconstructed anterior cruciate ligament: a case report.

A 16-year-old male who had undergone 6 months before an anterior cruciate ligament (ACL) reconstruction with an autologous hamstring graft fixed with a suspensory fixation device (XoButton device; ConMed Linvatec, Largo, FL), complained of a slightly painful mass in the distal posterolateral aspect of the thigh. The knee was otherwise stable. A 79 × 60 × 17 mm multilobulated tumor surrounding the implant device was observed in magnetic resonance images.

Hip labral cyst caused by psoas impingement.

Hip labral impingement can cause labral tears and secondary paralabral cyst formation. Femoroacetabular impingement is the main cause of labral impingement, but other conditions such as iliopsoas tendon impingement are described. There is no description of labral cyst resulting from psoas impingement treated arthroscopically in the literature.

Prospective comparative study between two different fixation techniques in meniscal allograft transplantation.

Purpose: To compare the functional and radiographic results between two different horn fixation techniques for meniscal allograft transplant.

Methods: This is a prospective study of 88 meniscal allograft transplants with a mean 5-year follow-up. Forty transplants were performed on the medial compartment and 48 on the lateral compartment.

Outcome after partial medial meniscus substitution with the collagen meniscal implant at a minimum of 10 years' follow-up.

Purpose: The aim of the study was to evaluate the clinical outcome of a collagen meniscus graft implanted in an injured medial meniscus after a minimum of 10 years' follow-up.

Methods: Twenty-five patients underwent arthroscopic implantation of the collagen meniscus device. They had either persistent compartmental joint line pain due to a previous medial meniscus resection (5 cases) or a large irreparable meniscus tear at arthroscopy (20 cases).

Allogenic labral transplantation in hip instability following arthroscopic labrectomy.

The acetabular labrum augments femoral head coverage within the acetabulum and contributes to hip joint stability. This has led to an increasing interest in procedures dedicated to preservation of the labrum. An allogenic labral transplantation performed in a patient who had previously undergone a partial labral resection is presented.

Meniscal allograft transplantation without bone blocks: a 5- to 8-year follow-up of 33 patients.

Purpose: The purpose of this study was to evaluate the functional and radiographic results on a midterm basis, as well as complications, in an initial series of meniscal allograft transplantations performed with suture fixation without any bone block.

Methods: A series of 33 meniscal allograft transplantations were performed at our institution from January 2001 to October 2003. Inclusion criteria were patients with compartmental joint line pain due to a previous meniscectomy.

[Learning curve of arthroscopic hip surgery].

Background: Hip arthroscopy has become an increasingly used technique in orthopedic surgery; the learning curve of this procedure has been discussed recently. The purpose of this study is to assess the learning curve of arthroscopic hip surgery using the complications occurred during the surgery as an objective parameter to measure the outcomes.

Methods: Hip arthroscopic surgeries were performed.

Anatomic single-bundle anterior cruciate ligament reconstruction from the anteromedial portal: evaluation of transverse femoral fixation in a cadaveric model.

Purpose: The purpose of this study was to assess the risk of injury to the posterolateral structures of the knee when performing anterior cruciate ligament reconstruction from the anteromedial portal while fixing the graft with a femoral cross-pin system.

Methods: The anterior cruciate ligament was reconstructed arthroscopically with hamstring graft in 10 fresh cadaveric knees. Femoral fixation was performed with a cross-pin system.

Benefits of arthroscopic tuberculoplasty in posterior ankle impingement syndrome.

The purpose of this work was to describe the posterior ankle impingement syndrome related to the posterolateral tubercle of the talus bone and to present a retrospective analysis of our results after arthroscopic plasty of the tubercle in 15 ankles with a mean 3-year follow-up. Fifteen cases of posterior ankle impingement (PAI) underwent arthroscopic excision of an impinging bone spur. All the patients (13) were retrospectively evaluated at an average of 36 months after index surgery.