[Use of frozen osteochondral allograft for the treatment of cartilage defects of the knee. Results at seven-year follow-up].

Introduction: Knee osteochondral lesions represent a frequent pathology within young active patients. One possible indication for severe lesions or in case of impossibility of harvesting an autograft is the use of fresh frozen allograft. The objective of this study was to retrospectively analyze functional results and failure rate after osteochondral transplants using fresh frozen allografts.

Incidence of vascular injury associated with knee arthroplasty: series of cases.

Introduction: The incidence of vascular injury associated with knee arthroplasty is scarce, but, when they occur, the consequences are serious.

Objectives: Describe the incidence of vascular lesions in our center and evaluate time to diagnosis, resolution and follow-up.

Materials And Methods: Retrospective cohort during the 2010-2019 period of primary arthroplasties and knee revision.

Failure rate, return-to-sports and magnetic resonance imaging after meniscal repair: 119 patients with 7 years mean follow up.

Background: One of the most important factors to consider in relation to meniscal repair is the high failure rate reported in the existing literature.

Aim: To evaluate failure rates, return to sports (RTS) rate, clinical outcomes and magnetic resonance image (MRI) evaluation after meniscus suture repair for longitudinal tears at a minimum 2-year-follow-up.

Methods: We conducted a retrospective review of meniscal repairs between January 2004 and December 2018.

Revision anterior cruciate ligament reconstruction: Return to sports at a minimum 5-year follow-up.

Background: Between 43% and 75% of patients who undergo primary anterior cruciate ligament (ACL) surgery return to sport activity. However, after a revision ACL reconstruction (ACLR) the rate of return to sports is variable. A few publications have reported returns to sports incidence between 56% to 100% after revision ACLR.

Overview of the anterolateral complex of the knee.

In the last few years, much more information on the anterolateral complex of the knee has become available. It has now been demonstrated how it works in conjunction with the anterior cruciate ligament (ACL) controlling anterolateral rotatory laxity. Biomechanical studies have shown that the anterolateral complex (ALC) has a role as a secondary stabilizer to the ACL in opposing anterior tibial translation and internal tibial rotation.

Has platelet-rich plasma any role in partial tears of the anterior cruciate ligament? Prospective comparative study.

Background: Partial tears of the anterior cruciate ligament (ACL) are frequent, and there is still considerable controversy surrounding their diagnosis, natural history and treatment.

Aim: To examine patient-reported outcomes, physical examination and magnetic resonance imaging (MRI) findings of partial ACL tears treated with an intraarticular injection of platelet-rich plasma (PRP) compared to a control group.

Methods: From January 2015 to November 2017, consecutive patients from a single institution with partial ACL tears treated nonoperatively were prospectively evaluated.

Good Short-Term Clinical Outcomes and Low Rates of Return to Sports after Repeat Revision ACL Reconstruction.

Repeat revision anterior cruciate ligament reconstruction (ACL-R) is a rare, demanding procedure and, as such, has not been well studied. Most of the available literature shows improved functional outcomes compared with preoperative state but inferior results when compared with primary ACL-R, particularly regarding return to preinjury level of sports. The purpose of this study was to assess functional outcomes in patients who had undergone repeat revision ACL-R.

Mucormycosis osteomyelitis after anterior cruciate ligament reconstruction: treatment and outcomes of 21 reported cases.

Aims: Our purpose was to describe an unusual series of 21 patients with fungal osteomyelitis after an anterior cruciate ligament reconstruction (ACL-R).

Methods: We present a case-series of consecutive patients treated at our institution due to a severe fungal osteomyelitis after an arthroscopic ACL-R from November 2005 to March 2015. Patients were referred to our institution from different areas of our country.

Infected Baker's Cyst: A New Classification, Diagnosis and Treatment Recommendations.

Introduction: Baker's cyst has a high prevalence in adult population. Despite being usually asymptomatic, cyst complications may develop, such as an infection, rupture and content dissemination into the calf. This clinical presentation has a low incidence with few reports in the literature.

Multiple Recurrent Cyst Formation after Anterior Cruciate Ligament Reconstruction - A Case Report.

Introduction: Anterior cruciate ligament (ACL) reconstruction is a "daily" surgery. Nevertheless, pretibial cyst formation is a very rare complication and may appear years after the reconstruction. Even more infrequent is the recurrence of this complication.

Lateral Extra-articular Tenodesis Has No Effect in Knees With Isolated Anterior Cruciate Ligament Injury.

Purpose: To investigate knee kinematics in response to physical examinations to determine the effect of anterolateral capsular injury and lateral extra-articular tenodesis (LET) in anterior cruciate ligament (ACL)-deficient and -reconstructed knees.

Methods: Seven human lower limb cadavers were used in this study (mean age, 60 years; age range, 56-63 years). Physical examinations were performed, including the pivot-shift test, Lachman test, anterior drawer at 90°, and internal and external tibial rotation at 30°, 60°, and 90° of knee flexion.

Patellofemoral arthritis treated with resurfacing implant: Clinical outcome and complications at a minimum two-year follow-up.

Background: This study evaluated the clinical and radiographic outcomes of a series of patients treated with an anatomic inlay resurfacing implant, with a minimum two-year follow-up.

Methods: Fifteen patients underwent patellofemoral-resurfacing procedures using a HemiCAP Wave Patellofemoral Inlay Resurfacing implant from 2010 to 2013. Clinical outcomes included: Visual Analog Scale (VAS), Lysholm score, Knee Society Score (KSS), and evaluation of Kujala, and Hospital for Special Surgery Patellofemoral score (HSS-PF).

Joint preservation after hip arthroscopy in patients with FAI. Prospective analysis with a minimum follow-up of seven years.

Background: The purpose of this study is to evaluate the clinical outcomes, radiological degenerative progression and the joint preservation rate in a series of patients with Femoroacetabular Impingement (FAI) treated with hip arthroscopy at a minimum follow-up of 7 years. The predictive factors for total hip arthroplasty (THA) requirement were analyzed.

Materials And Methods: Between February 2008 and February 2009, 42 consecutive patients treated with hip arthroscopy due to FAI syndrome were included.

Correlation between a 2D simple image analysis method and 3D bony motion during the pivot shift test.

Background: The pivot shift test is the most specific clinical test to detect anterior cruciate ligament injury. The purpose of this study was to determine the correlation between the 2D simple image analysis method and the 3D bony motion of the knee during the pivot shift test and assess the intra- and inter-examiner agreements.

Methods: Three orthopedic surgeons performed three trials of the standardized pivot shift test in seven knees.

Meniscal Ramp Lesions: Anatomy, Incidence, Diagnosis, and Treatment.

Meniscal ramp lesions are more frequently associated with anterior cruciate ligament (ACL) injuries than previously recognized. Some authors suggest that this entity results from disruption of the meniscotibial ligaments of the posterior horn of the medial meniscus, whereas others support the idea that it is created by a tear of the peripheral attachment of the posterior horn of the medial meniscus. Magnetic resonance imaging (MRI) scans have been reported to have a low sensitivity, and consequently, ramp lesions often go undiagnosed.