Simone Perelli

HOSPITAL UNIVERSITARI QUIRON DEXEUS,Barcelona,Spain · ICATME - Institut Català de Traumatologia i Medicina de l?esport

Purpose This study aimed to analyse the clinical outcomes and survival of patellofemoral arthroplasty (PFA) in treating isolated patellofemoral osteoarthritis (IPFOA) at our centre. The secondary objective was to compare these results with a historical cohort treated with partial lateral facetectomy plus Insall realignment (PLFIR). We hypothesised...

Meniscal extrusion (ME), defined as the radial displacement of the meniscal body outside the margins of the tibial plateau, has been seen as an independent and relevant predictor of intra‐articular knee degeneration. Nonetheless, available classifications for ME are exclusively quantitative assessments not considering the context in which extrusion...

Purpose The stability of the graft in the bony tunnels is of utmost importance in the anterior cruciate ligament reconstruction (ACLR) since it ensures safe healing at the tendon‐bone interface. The hypothesis was that when a double tibial fixation was used in ACLR with a short graft of autologous hamstrings, tibial tunnel bone re‐growth and better...

Purpose Donor site morbidity is the main drawback to using bone‐patellar tendon‐bone (BPTB) as a graft in anterior cruciate ligament (ACL) reconstruction. The objective of the study was to determine whether refilling the patellar bone defect after BPTB harvesting with autograft bone decreased kneeling pain to a greater degree when compared with a g...

Introduction One of the main concerns around the use of antibiotic‐loaded bone cement (ALBC) is the potential reduction in the mechanical properties of the cement when antibiotics are admixed. The purpose of this study was to determine whether there is a difference between plain cement and ALBC in terms of radiological intrusion into the bone in to...

Purpose to provide a comprehensive overview of all the surgical techniques published in the literature for repairing meniscal ramp lesions focusing on the technical aspects and the pros and cons of every procedure. Such lesions can be managed using various approaches, each of this with its specific advantages and disadvantages. Methods Pubmed Cent...

Background Knee osteoarthritis (KOA) represents a widespread degenerative condition among adults that significantly affects quality of life. This study aims to elucidate the biomechanical implications of proximal fibular osteotomy (PFO), a proposed cost-effective and straightforward intervention for KOA, comparing its effects against traditional hi...

Knee malalignment is defined not only as angular deviation from the physiological weight-bearing axis but also by the presence of limiting symptoms. Even small deviations may alter the complex interactions between knee joint structures, thus accelerating osteoarthritis progression. Clinical and radiological evaluation represent two key factors to c...

Technique Video Video 1 Medial meniscus posterior root (MMPR) transtibial pullout repair with progressively tensioning subcortical fixation button. A standard anterolateral arthroscopic portal is placed to explore the entire joint and decide the best position for the anteromedial (AM) portal, which is placed under direct visualization. The medial...

Background: Knee osteoarthritis (KOA) represents a widespread degenerative condition among adults that significantly affects quality of life. This study aims to elucidate the biomechanical implications of proximal fibular osteotomy (PFO), a proposed cost-effective and straightforward intervention for KOA, comparing its effects against traditional h...

Typical treatments against knee osteoarthritis (KOA) are performed surgically, such as knee arthroplasty or high tibial osteotomy (HTO). In recent years, Proximal Fibular Osteotomy (PFO) has been proposed as a solution against KOA. The biomechanical understanding of the effects of PFOs is herein investigated. The present study provides the fundamen...

Background Previous biomechanical studies of the meniscotibial ligament have determined that it contributes to meniscal stability. An injury to it can cause the meniscus to extrude, and reconstruction of that ligament significantly reduces extrusion. Purpose To assess the biomechanical effects of sectioning the lateral meniscotibial ligament (LMTL...

Purpose The purpose of this study was to evaluate the reproducibility and the accuracy of distal tibiofibular syndesmosis (DTFS) as landmark to perform controlled varus tibial resections during total knee arthroplasty (TKA). The hypothesis was that DTFS can be used to perform an accurate 3° varus tibial cut. Methods A retrospective analysis on a c...

Patellofemoral pathologies are a frequently diagnosed group of disorders in the young active population. They are mostly linked to anatomical predispositions or functional alterations (e.g., neuromuscular) that can lead to unfavorable patellofemoral joint kinetics. As a result, patellar instability, patellofemoral pain, and eventually joint degener...

Meniscal injuries are frequent lesions of the knee that mostly occur in the medial meniscus of young active males. The most frequent symptoms are pain and sensation of joint blocking. By means of a clinical evaluation and magnetic resonance imaging (MRI), the lesions are easily diagnosed. Meniscal lesions can be classified according to the localiza...

Intramedullary nailing remains the most popular and preferred method of fixation for tibial shaft fractures. The infrapatellar approach through the patellar tendon has long been considered the gold standard. However, the supra-patellar approach has gained popularity because of the advantages of being easier to perform when treating proximal shaft a...

Purpose: The aim of this study was to assess the effect of systematic lateral retinacular release (LRR) on anterior knee pain (AKP), as well as its impact on the functional and radiological outcomes after total knee arthroplasty (TKA) with patellar resurfacing. Methods: A prospective randomized study was designed. It included patients scheduled...

Anterior cruciate ligament (ACL) reconstruction failure can be defined as abnormal knee function due to graft insufficiency with abnormal laxity or failure to recreate a functional knee according to the expected outcome. Traumatic ruptures have been reported as the most common reason for failure. They are followed by technical errors, missed concom...

Purpose: To carry out an in vivo kinematic analysis of isolated modified Lemaire lateral extra-articular tenodesis (LET) to explore its ability to modify the stability of anterior cruciate ligament (ACL) deficient knees. The secondary aim was to look at the clinical outcomes of the isolated LET to analyze whether biomechanical changes have an infl...

Anterior cruciate ligament (ACL) tear is one of the most common sport-related injuries and the request for ACL reconstructions is increasing nowadays. Unfortunately, ACL graft failures are reported in up to 34.2% in athletes, representing a traumatic and career-threatening event. It can be convenient to understand the various risk factors for ACL f...

Background: The increase in anterior cruciate ligament (ACL) injuries in pediatric patients and the high failure rate reported in the literature in this population are driving surgeons to search for specific techniques to better restore knee stability. Recent literature has reported that the combination of lateral extra-articular tenodesis (LET) a...

Background: Meniscal allograft transplantation (MAT) is an effective reconstructive procedure for treating symptomatic post-meniscectomy syndrome. It consists of replacing the lost meniscal tissue aiming to improve the clinical outcomes and prevent a progressive deterioration of the joint. The aim of this study was to evaluate meniscal graft survi...

PurposeThe aim of this study was to evaluate graft survivorship and report the functional and radiographic results of Meniscal allograft transplantation (MAT) throughout a minimum 15-year follow-up period. Methods Fifty-one patients that had undergone an isolated MAT procedure during the period studied were included. The results were assessed with...

Background: the incidence of Achilles tendon (AT) rupture is rising; however, there is no clear consensus regarding the optimal treatment. The aim of this retrospective study was to compare instrumental and patient-reported outcome scores after fast functional rehabilitation (group A) versus plaster cast immobilization (group B) programs in patien...

Purpose Compare the differences in the morphology of the ACL femoral footprint between the cadavers of the young and elderly in consideration of the degenerative physiological process that occurs with aging. Methods The femoral footprint of the ACL was dissected in 81 knees of known gender and age (45 male/36 female). They were divided into four g...

Purpose: To carry out an in vivo kinematic analysis to determine whether adding a lateral extraarticular tenodesis (LET) for those patients with subjective instability and objective residual laxity after a transtibial (TT) anterior cruciate ligament reconstruction (ACLR) reduces anteroposterior and rotational laxity and to evaluate the 2-year foll...

Despite the fact that the choice of bearing design has been thought to influence the functional outcomes and longevity of unicompartimental knee arthroplasty (UKA), there is a lack of clinical evidence supporting the decision-making process in patients who have undergone high tibial osteotomy (HTO). A systematic review of studies was carried out th...

Proximal tibiofibular dislocation in closing-wedge high tibial osteotomy increases the risk of medium and long-term total knee replacement. Background: High tibial osteotomy is an effective treatment for medial osteoarthritis in young patients with varus knee. The lateral closing-wedge high tibial osteotomy (CWHTO) may be managed with tibiofibular...

PurposeTo determine, identify and measure the structures of the menisco-tibio-popliteus-fibular complex (MTPFC) with magnetic resonance imaging (MRI) in knees without structural abnormalities or a history of knee surgery.Methods One-hundred-and-five knees without prior injury or antecedent surgery were analyzed by means of MRI. The average age was...

Background Lateral extra-articular tenodesis (LET) is one of the most widely used procedures to restore anterolateral stability. Clinical outcomes after the addition of LET to anterior cruciate ligament (ACL) reconstruction (ACLR) have been widely investigated; however, the potential influence of LET on the ACL ligamentization process has not been...

Purpose: The aim of the present study was to determine whether the risk of complications increases with the number of people in the operating room (OR). Several studies have stated that an increased number of people in the OR increases not only the risk of infection but also the risk of intraoperative complications due to distractions during the s...

The anatomy of the lateral meniscus underlies the understanding of its unique biomechanics. Moreover, the knowledge of its microscopic structure, its vascularization and its ligament insertions can make us understand the rationale for its surgical treatment. It is well known as the respect of the anatomy leads to better results in reconstructive su...

Purpose: The main aim of this study was to evaluate the re-rupture risk after an anterior cruciate ligament reconstruction (ACL-R) using the vancomycin soaking technique and to compare it with the re-rupture risk in patients on whom this technique was not utilized. The secondary purpose was to compare the functional outcomes of those two subsets o...

Central transpatellar tendon portal (CTP) was suggested first for complex meniscal lesion and subsequently for a better femoral footprint view during reconstruction of anterior cruciate ligament (ACL). A comprehensive evaluation of possible consequences of using the CTP performing an ACL reconstruction does not exist. Our hypothesis was that the us...

There are widely used standard clinical tests to estimate the instability of an anterior cruciate ligament (ACL) deficient knee by assessing the translation of the tibia with respect to the femur. However, the assessment of those tests could be quite subjective. The goal of this study is to present a universally affordable open-source Android appli...

Suprascapular neuropathy is an uncommon but increasingly recognized cause of shoulder pain and dysfunction due to nerve entrapment. The aim of this review is to summarize some important aspects of this shoulder pathology. An extensive research was performed on PubMed and Clinical Key. The goal was to collect all the anatomical, biomechanical and cl...

PurposeTo further the current understanding of the modifications of the morphology of the ACL tibial footprint in healthy knees during the ageing process. The hypothesis is that there are differences in the morphology of the ACL tibial footprint between the cadavers of the young and elderly due to a degenerative physiological process that occurs ov...

PurposeThe primary objective was to compare the functional outcomes after an isolated MPFL reconstruction using either a quasi-anatomical technique (group A) or an anatomical MPFL reconstruction (group B). The secondary objectives were to compare the rates of redislocation, range-of-motion and subjective patellar instability (Smillie test).MethodsA...

Background The incidence of Achilles tendon (AT) rupture increased, but there is no gold standard treatment. The aim of this study is to compare clinical and functional results of standard and fast rehabilitation program (immobilization and no weight bearing for 4 weeks vs early joint mobility and weight bearing). Methods 33 patients underwent to o...

Purpose To analyze, quantify and redefine the anatomy of the peripheral attachments of the lateral meniscus body to further understand how the structures might play a part in preventing meniscal extrusion and how it might be applied to surgical techniques. Methods Ten non-paired fresh-frozen cadaveric knees without prior injury, a surgical history...

Background High tibial osteotomy is an established and helpful treatment for unicompatimental osteoarthritis associated with varus deformity. However, asupratubercle high tibial osteotomy leads to a decrease in patellar height making the technique not suitable in case of concomitant patella baja. Moreover, this kind of osteotomy can change in situ...

Patella baja is a challenging pathologic condition that causes pain and functional restrictions and can even lead to premature osteoarthritis-even more so in cases of patella infera or cases associated with degeneration of the patellar tendon in which simple conservative treatment frequently is not resolutive. Several surgical options have been des...

Purpose: The purpose of this study was to analyze postoperative computed tomography (CT) scan evaluations of patients who had undergone a combined anterior cruciate ligament (ACL) reconstruction and modified Lemaire anterolateral tenodesis (ALT) with femoral fixation through a bony tunnel. Methods: Postoperative CT scans of 52 patients who had u...

Meniscal injuries are common in patients with varus or valgus malalignment, but consensus is lacking as to when surgery should address the meniscal injury only and when it should be combined with an osteotomy. Several factors need to be evaluated to provide the most appropriate treatment in each case. Here we highlight the most relevant literature...

The aim of the present study is to describe results at long-term follow-up of internal fixation of unstable Osteochondritis Dissecans (OCD) achieved with three different fixation devices in skeletally mature knees. A retrospective cohort study was performed at 5 to 19 years follow-up. Patient-reported questionnaires were collected at the final foll...

Purpose The study aims to present the results at a mean 28-months follow-up of arthroscopic-guided balloon tibioplasty and to spot some technical tricks and some practice using tools and materials. Methods The study relates to six patients with tibial plateau fractures type Schatzker III with tibial plateau depression more than 4 mm at preoperative...

Background: The optimal treatment of partial anterior cruciate ligament (ACL) tears continues to be debatable. Short-term results of selective bundle reconstruction have already been widely shown. The purpose of this study was to assess functional outcomes, subjective satisfaction and the failure rate of selective bundle reconstructions for partia...

Purpose To report clinical and functional results of ACL reconstruction in patients over 50 years old and investigate the influence of surgery on osteoarthritis progression in this cohort of patients. Methods A systematic review was performed on PubMed, Scopus, Google scholar, Cochrane library and EMBASE, using a strategy search design to collect...

RESUMEN Objetivo Presentar los resultados en pruebas de imagen y funcionales obtenidos en una serie de trasplantes meniscales alogénicos (TMA) laterales fijados mediante suturas transóseas, a los que previamente se había practicado una fijación de la cápsula o del remanente meniscal al borde tibial lateral (capsulodesis), con objeto de limitar la e...

Purpose The objectives of this study were to determine the reliability of a novel method of measuring the rotational alignment of an anatomical tibial tray, the difference in the rotational alignment of the femoral and tibial component according to pure measured resection or blended technique with tensor, and, finally, the difference in terms of cl...

Purpose The objectives of this study were to determine the radiological outcome of a new personalized total knee arthroplasty (TKA) design and also to analyze the radiological reproducibility of the surgical technique. Patients and methods A total of 100 consecutive TKAs performed in 99 patients using Persona knee system were recruited. Weight-bea...

The treatment of articular cartilage lesions in young patients is certainly a complex matter and subject of continuous research, particularly for those located at the patellofemoral joint, given its peculiar biomechanical characteristics. Osteochondral grafts can be of relatively small size when the defect is focal and in an area that allows good s...

Introduction: Subspine impingement is characterized by a prominent anterior inferior iliac spine that creates an abnormal contact with the distal femoral neck during hip movements. Currently, the clinical picture and diagnostic criteria are still being refined for these conditions. This study aimed to systematically review the literature on the sub...

Objective: To elucidate the role of MRI in predicting meniscal tear reparability according to tear type and location in relation to vascular zones. Materials and methods: In this retrospective study, two readers evaluated 79 pre-surgical MRIs of meniscal tears arthroscopically treated with meniscectomy or meniscal repair. Tears were classified a...