The sagittal geometry of the trochlear groove could be described as a circle: an intraoperative assessment with navigation.

Purpose: The aim of this study was to describe the sagittal geometry of the trochlear groove in patients who underwent primary TKA, based on intraoperative data acquired with a navigation system.

Methods: Intraoperative navigation data were collected from 110 patients. All operations were guided by a non-image-based navigation system (BLU-IGS, Orthokey Italia Srl).

Outcome After Modified Grice-Green Procedure (SAMBB) for Arthritic Acquired Adult Flatfoot.

Background: Adult acquired flatfoot deformity is a well-known and recognized cause of pain and disability. The purpose of this retrospective study was to describe radiographic and clinical outcomes of the modified mini bone block distraction subtalar arthrodesis (SAMBB) in adult patients affected by adult flatfoot with subtalar joint osteoarthritis at a midterm mean follow-up.

Methods: A retrospective review of our database identified patients.

Higher risk of contralateral anterior cruciate ligament (ACL) injury within 2 years after ACL reconstruction in under-18-year-old patients with steep tibial plateau slope.

Purpose: To assess the role of Tibial Plateau Slope (TPS) as risk factor for early Anterior Cruciate Ligament (ACL) reconstruction failure and contralateral ACL injury in a population of patients with less than 18 years of age and operated on with the same surgical technique.

Methods: Ninety-four consecutive patients (mean age 15.7 ± 1.

Tips and tricks for building a good paper: what editors want.

ESSKA is constantly committed to promoting the improvement of scientific quality through the publication of books and the organization of dedicated conferences. In line with this commitment, this interview paper was crated with the aim of being useful for all the young scientists and orthopaedics keen in musculoskeletal and sport medicine research. Three Editors from the most important journals in our field were invited to participate: Jon Karlsson from Knee Surgery Sport Traumatology and Arthroscopy, Bruce Reider from The American Journal of Sport Medicine and Edward Wojtys from Sports Health.

Rapid Posterior Tibial Reduction After Noncontact Anterior Cruciate Ligament Rupture: Mechanism Description From a Video Analysis.

Background: The mechanisms of noncontact anterior cruciate ligament (ACL) injuries are an enormously debated topic in sports medicine; however, the late phases of injury have not yet been investigated.

Hypothesis: A well-defined posterior tibial translation can be visualized with its timing and patterns of knee flexion after ACL injury.

Study Design: Case series.

Letter to the Editor on "Prediction of Knee Kinematics at Time of Noncontact Anterior Cruciate Ligament Injuries Based on Bone Bruises".

The aim of the present Letter was to comment on the paper "Prediction of Knee Kinematics at Time of Noncontact Anterior Cruciate Ligament Injuries Based on Bone Bruises" from Shi et al. (Ann Biomed Eng, 2020, https://doi.org/10.

Patient-Reported and Quantitative Outcomes of Anatomic Anterior Cruciate Ligament Reconstruction With Hamstring Tendon Autografts.

Background: The pivot-shift test has become more consistent and reliable and is a meaningful outcome measurement after anterior cruciate ligament reconstruction (ACLR).

Purpose/hypothesis: The purpose of this investigation was to assess patient-reported outcomes (PROs) and the quantitative pivot shift (QPS) preoperatively, at time zero immediately after anatomic ACLR, and after 24 months as well as the relationship between PROs and the QPS. It was hypothesized that anatomic ACLR would restore rotatory stability measured by the pivot-shift test and that QPS measurements would be positively correlated with PROs.

Clinical-radiological outcomes and complications after total ankle replacement through a lateral transfibular approach: a retrospective evaluation at a mid-term follow-up.

Purpose: Degenerative ankle arthropathy is a debilitating and increasingly widespread condition with worsening of quality of life. In last years, total ankle replacement has increased indications, thanks to advances in surgical technique, materials and design that provided new solutions for surgeons. The purpose of this study is to evaluate the effectiveness of total ankle replacement (TAR), implanted using a trans-fibular lateral approach in patients with high-grade degenerative arthropathy, in terms of clinical, functional and radiological outcomes and possible complications.

Good results are reported at 60-month follow-up after medial patello-femoral ligament reconstruction with fascia lata allograft for recurrent patellar dislocation.

Purpose: The aim of this study was to evaluate the efficacy of a new minimally invasive surgical technique for the reconstruction of the medial patellofemoral ligament (MPFL) with fascia lata allograft at 60-month minimum follow-up.

Methods: Nineteen consecutive patients with chronic recurrent patellar dislocation were treated with MPFL reconstruction (53% isolate procedure, 47% in combination with other treatments). Seventeen patients (11 males/6 females) were available at 60-month follow-up and were clinically evaluated with validated scores.

Ankle joint re-balancing in the management of ankle fracture malunion using fibular lengthening: prospective clinical-radiological results at mid-term follow-up.

Purpose: An unsatisfactory reduction and internal fixation of an ankle fracture can result in an alteration of the anatomical axes and distribution of the load on the ankle, with consequent development of chronic pain and articular degeneration. The aim of this study is to evaluate the results of the articular re-balancing with realignment and lengthening of the fibula in case of malunited distal fibular fractures.

Methods: A review of prospectively collected data was performed for all patients with a diagnosis of malunion of the fibula and underwent ankle joint re-balancing with fibular lengthening.

Long-term Outcomes and Survivorship of Fresh-Frozen Meniscal Allograft Transplant With Soft Tissue Fixation: Minimum 10-Year Follow-up Study.

Background: Meniscal allograft transplant (MAT) is considered an effective procedure for reducing pain and improving knee function. Nevertheless, the current knowledge regarding the results of MAT is limited to short- to mid-term follow-up studies, especially for arthroscopic techniques.

Purpose: To evaluate the long-term clinical outcomes, reoperations, and failures with a minimum follow-up of 10 years after fresh-frozen MAT performed arthroscopically with soft tissue fixation.

Hamstrings substitution via anteromedial portal with optional anterolateral ligament reconstruction is the preferred surgical technique for anterior cruciate ligament reconstruction: a survey among ESSKA members.

Purpose: The objective of this study was to report on a worldwide web-based survey among the ESSKA community developed to investigate current recommendations regarding ACL reconstruction surgical procedures.

Methods: All contacts in the official mailing list of the ESSKA were contacted to investigate preferences regarding graft type, anterolateral ligament reconstruction, femoral tunnel drilling technique, single-bundle vs double-bundle technique, femoral and tibial fixation methods.

Results: Eight-hundred and twenty responses were analyzed.

Correction to: Management of early ankle osteoarthritis through anterior joint-preserving surgery: a retrospective evaluation at mid- to long-term follow-up.

The original version of this article unfortunately contained a mistake. The spelling of the 'Francesco Ceccarelli' name was incorrect.

Role of pulsed electromagnetic fields after joint replacements.

Although the rate of patients reporting satisfaction is generally high after joint replacement surgery, up to 23% after total hip replacement and 34% after total knee arthroplasty of treated subjects report discomfort or pain 1 year after surgery. Moreover, chronic or subacute inflammation is reported in some cases even a long time after surgery. Another open and debated issue in prosthetic surgery is implant survivorship, especially when related to good prosthesis bone ingrowth.

PRP Injections for the Treatment of Knee Osteoarthritis: A Meta-Analysis of Randomized Controlled Trials.

Objective: To evaluate effectiveness, in terms of patient-reported outcome measures, of platelet-rich plasma (PRP) injections for knee osteoarthritis compared to placebo and other intraarticular treatments.

Design: PubMed, Cochrane Library, Scopus, Embase, Web of Science, as well as the gray literature were searched on January 17, 2020. Randomized controlled trials (RCTs) comparing PRP injections with placebo or other injectable treatments, in any language, on humans, were included.

Graft-Preserving Arthroscopic Debridement With Hardware Removal Is Effective for Septic Arthritis After Anterior Cruciate Ligament Reconstruction: A Clinical, Arthrometric, and Magnetic Resonance Imaging Evaluation.

Background: Arthroscopic debridement with graft preservation has been advocated as the treatment of choice for septic arthritis after anterior cruciate ligament (ACL) reconstruction, but no previous studies have investigated if hardware removal, while retaining the graft in situ, improves the success rate. Moreover, it is unclear whether the premature removal of fixation devices may affect graft integration and knee stability.

Purpose/hypothesis: The purpose was to assess the clinical and functional outcomes of patients with septic arthritis after ACL reconstruction who underwent arthroscopic debridement, while retaining the graft in situ but removing fixation devices, and to determine if premature hardware removal affects graft integrity and function.

Reduced-dose computed tomography is the most accurate method to measure ceramic hip resurfacing cup version.

Background: A precise assessment of cup version after hip resurfacing is generally requested, especially in clinical trials or in case of complications.

Aims: To identify which diagnostic imaging modality, between AP pelvis X-rays, the AP Pelvis CT Scout image and reduced-dose axial CT scan, is the most precise to assess cup version of an all-ceramic hip resurfacing implant in a first-in-human clinical trial.

Methods: We retrospectively assessed the cup version of the first 20 patients who underwent an experimental all-ceramic hip resurfacing on AP pelvis X-rays (0.

The COVID-19 outbreak in Italy: perspectives from an orthopaedic hospital.

Purpose: Italy is one of the more severely affected countries in the world by the recent COVID-19 outbreak. The aim of this report is to describe how COVID-19 affected the life and organization of one of the main orthopaedic hospitals of the country, and which measures were implemented to face the outbreak.

Methods: A personal interview has been conducted with four doctors involved in the management of COVID-19 outbreak in one of the main orthopaedic hospitals of Italy.

Validation of an optical, computer-assisted technique for intraoperative tracking of 3-dimensional canine stifle joint motion.

Background: Cranial cruciate ligament (CCL) rupture is the most common orthopedic pathology in dog and in men. In human, optical computer-assisted technique is considered as a repeatable and reliable method for the biomechanical assessment of joint kinematics and laxity in case of CCL surgery.

Aim: To evaluate the repeatability and reliability afforded by clinical tests in terms of laxity measured by means of a computer-assisted tracking system in two canine CCL conditions: CCL-Intact, CCL-Deficient.

Management of early ankle osteoarthritis through anterior joint-preserving surgery: a retrospective evaluation at mid- to long-term follow-up.

Purpose: Chronic anterior ankle pain is a recognized and straightforward characteristic of anterior impingement syndrome. This retrospective study aims to evaluate outcomes, clinical and radiological results in patients affected by anterior ankle impingement, in a context of early osteoarthritis, and treated with mini-open anterior ankle arthrolysis, in the perspective to delay or avoid other demolitive surgical options, such as total ankle replacement and joint fusion.

Methods: In total, 49 patients (50 feet, mean age 45 years) undergone mini-open anterior ankle arthrolysis for anterior impingement, fulfilled inclusion criteria and gave their consent and have been enlisted in the study.

Platelet-Rich Plasma Augmentation to Microfracture Provides a Limited Benefit for the Treatment of Cartilage Lesions: A Meta-analysis.

Background: Microfracture is the most common first-line option for the treatment of small chondral lesions, although increasing evidence shows that the clinical benefit of microfracture decreases over time. Platelet-rich plasma (PRP) has been suggested as an effective biological augmentation to improve clinical outcomes after microfracture.

Purpose: To evaluate the clinical evidence regarding the application of PRP, documenting safety and efficacy of this augmentation technique to improve microfracture for the treatment of cartilage lesions.