Publications by authors named "Oliva X"

Introduction: There is evidence that the presence of a posterior malleolus fracture (PMF) worsens the prognosis of ankle fractures, making conservative treatment a poor choice. PMFs include a heterogeneous group of bone injury patterns that are sometimes associated to medial malleolus extensions, as well as fibula fractures or syndesmotic damage. This requires the surgeon to be well-versed in anatomy to choose the appropriate surgical approach.

View Article and Find Full Text PDF

Introduction: The presence of a fracture of the posterior malleolus gives a poor prognosis for ankle fractures. This study aimed to analyze the anatomical structures at risk in the traditional postero-medial (TPM) approach.

Methods: Of a total of 21 cadaveric pieces, 11 were female and 10 were male; 9 ankles/right foot and 11 ankles/left foot.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the strain patterns of repaired anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL) in cadaver models following an isolated ATFL repair for chronic lateral ankle instability.
  • Using a specialized probe system, the researchers measured strain directly in the ligaments during various movements to assess their performance.
  • Results indicated that while the repaired CFL did not perfectly match normal strain patterns, it still demonstrated some tension similar to normal conditions, suggesting partial functionality post-repair.
View Article and Find Full Text PDF

Background: Posterior tibial tendon (PTT) tendoscopy and medializing calcaneal osteotomy (MCO) are among the available techniques for patients presenting with symptomatic flexible hindfoot valgus (stage IA) progressive collapsing foot deformity (PCFD). The aim of this study was to determine clinical and radiographic outcomes of combined PTT tendoscopy and MCO for patients presenting with symptomatic stage IA PCFD.

Methods: A retrospective cohort study was performed in order to determine clinical and radiographic outcomes of 30 combined PTT tendoscopies and MCO on 27 patients presenting with symptomatic stage IA PCFD, with a minimum follow-up of 24 months.

View Article and Find Full Text PDF

Understanding of the ankle and subtalar joint ligaments is essential to recognize and manage foot and ankle disorders. The stability of both joints relies on the integrity of its ligaments. The ankle joint is stabilized by the lateral and medial ligamentous complexes while the subtalar joint is stabilized by its extrinsic and intrinsic ligaments.

View Article and Find Full Text PDF

To evaluate the 15-year survival rate of zirconia (Y-TZP) implants with a roughened acid-etched surface in a retrospective post-market clinical follow-up (PMCF) study. One-piece ceramic implants (CeraRoot) with a roughened acid-etched surface (ICE) were used. Six different implant shapes/sizes were used in this study.

View Article and Find Full Text PDF

A frontal plane metatarsal rotational (pronation) has been documented in a high percentage of hallux valgus patients. Pathoanatomical concepts leading to pronation are still debated. Nevertheless, there is no consensus on how to measure this component of the deformity.

View Article and Find Full Text PDF

Background: Total ankle arthroplasty was developed as an alternative option to ankle arthrodesis in patients with end-stage ankle osteoarthritis. Multiple trials have assessed the outcomes of ankle arthroplasty, but complication risk or relative effectiveness is not systematized in literature.

Aim: Review complications of new designs of total ankle arthroplasty and the relationship between their severity and failure rates.

View Article and Find Full Text PDF

Background: Tarsal tunnel syndrome (TTS) is typically caused by an anatomical variant or mechanical compression of the tibial nerve (TN) with variable success after surgical treatment.

Method: 40 lower-leg specimens were obtained. Dissections were appropriately conducted.

View Article and Find Full Text PDF
Article Synopsis
  • - Subtalar instability is a complex issue with unclear causes, often confused with ankle instability due to overlapping symptoms, leading to potential misdiagnosis and inadequate treatment.
  • - Proper understanding of subtalar joint anatomy and biomechanics is essential for accurate diagnosis and effective management of subtalar instability, as neglecting this aspect can result in chronic issues.
  • - The review discusses current knowledge on the condition, including diagnosis methods, treatment options (both nonsurgical and surgical), and the outcomes associated with different management approaches for subtalar instability.
View Article and Find Full Text PDF

Background: Medial facet talocalcaneal coalition can be a painful condition. This study aimed to determine clinical and radiographic outcomes of posterior arthroscopic subtalar arthrodesis (PASTA) for adult patients presenting with symptomatic medial facet talocalcaneal coalition and normal hindfoot alignment, with a minimal follow-up of 18 months.

Methods: Between June 2017 and July 2019, this procedure was performed on 8 feet (8 patients; mean age, 55 [42-70] years; mean BMI, 29.

View Article and Find Full Text PDF

Background: Inversion ankle sprains, or lateral ankle sprains, often result in symptomatic lateral ankle instability, and some patients need lateral ankle ligament reconstruction to reduce pain, improve function, and prevent subsequent injuries. Although anatomically reconstructed ligaments should behave in a biomechanically normal manner, previous studies have not measured the strain patterns of the anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL) after anatomical reconstruction. This study aimed to measure the strain patterns of normal and reconstructed ATFL and CFLs using the miniaturization ligament performance probe (MLPP) system.

View Article and Find Full Text PDF

Background: Displaced intra-articular calcaneus fractures (DIACF) Sanders type IV represent a challenge in its management and questions remain about the best treatment option available. This study aimed to compare the outcomes of primary subtalar arthrodesis (PSTA) and osteosynthesis in these fractures.

Methods: Studies concerning DIACF Sanders type IV, from 2005 to 2020 were systematically reviewed.

View Article and Find Full Text PDF

Lately there has been a growing interest in the use of percutaneous surgery for the correction of hallux valgus (HV). The purpose of the present study was to systematically review the published data about this topic and establish the efficacy and safety, stressing the complication rates found on this percutaneous technique. A systematic review of the literature available in PubMed was performed.

View Article and Find Full Text PDF

Objectives: We sought to evaluate clinical outcomes in patients treated with the drug-eluting stent ihtDEStiny BD.

Background: The ihtDEStiny BD stent is a metallic sirolimus eluting stent with a biodegradable polymer with both drug and polymer coating the abluminal surface of the stent and balloon.

Methods: In this study, the clinical outcomes of a multicenter prospective registry of patients treated with this stent (DEStiny group) were analyzed and compared with those of a control group of patients treated with durable polymer everolimus or zotarolimus eluting stents (CONTROL group) paired by propensity score matching.

View Article and Find Full Text PDF

Purpose: Despite the evidence on the role of gravity stress test to access the instability of other ankle injuries, there is limited literature regarding gravity stress on the lateral ankle ligament's insufficiency. The objective of our study was to objectively measure the tibiotalar angular movement under gravity stress after progressive sectioning of the lateral ankle ligaments.

Methods: We performed sequential sectioning of the anterior talofibular (ATFL), calcaneofibular (CFL), and posterior talofibular ligaments (PTFL) in twelve ankle specimens.

View Article and Find Full Text PDF

Background: Arterial vascularization is intimately related to the peroneal tendon ruptures. Our purpose is to describe the vascular anatomy of peroneal tendons and assess differences in the vascularization patterns between peroneus brevis tendon (PBT) and peroneus longus tendon (PLT).

Methods: Anatomical study of 22 cadaveric lower extremities.

View Article and Find Full Text PDF
Article Synopsis
  • - Ankle injuries are common, and this study focuses on the anatomical details of posterior ligaments, particularly the posteroinferior tibiofibular ligament (PITFL) and intercultural ligament (IML), which are crucial in understanding ankle injuries and conditions like posterior soft tissue impingement syndrome.
  • - Seventeen cadaveric feet were analyzed to study the PITFL's structure, showing that it consists of two parts (superficial and deep fibers) and varies in size across specimens; the IML appeared in 82.4% of cases and also had varying forms.
  • - The findings emphasize the need for improved anatomical knowledge of these ligaments to better inform treatment options and surgical interventions due to the high frequency
View Article and Find Full Text PDF

Background: There are few reports on the detailed biomechanics of the deltoid ligament, and no studies have measured the biomechanics of each ligamentous band because of the difficulty in inserting sensors into the narrow ligaments. This study aimed to measure the strain pattern of the deltoid ligament bands directly using a Miniaturization Ligament Performance Probe (MLPP) system.

Methods: The MLPP was sutured into the ligamentous bands of the deltoid ligament in 6 fresh-frozen lower extremity cadaveric specimens.

View Article and Find Full Text PDF

Purpose: The purpose of this study was to investigate if the calcaneofibular ligament (CFL) presents morphologic variants and measure the morphometrics of the ligament and its footprints METHODS: An anatomical study of 47 fresh-frozen below-the-knee ankle specimens was performed. Lateral ankle structures were dissected to expose the CFL. Overdissection was avoided to not modify the native morphology.

View Article and Find Full Text PDF

Background: The optimal treatment of acute Achilles tendon ruptures (AATR) is still under debate. The purpose of this study was to evaluate outcomes of open repair comparing with percutaneous procedure for AATR.

Methods: 100 patients with AATR were randomized in two groups: open "crown" type (group A) and percutaneous Bunnell type repair (group B).

View Article and Find Full Text PDF

Background: The Os Peroneum (OP) is a small sesamoid bone, which can be found in the Peroneus Longus Tendon (PLT) sheath, near the calcaneocuboid joint. Size and shape variability is quite common as well as a multipartite OP that can be found in some cases. Trying to explore and understand this variability, this study was carried out in order to provide us with answers about the presence and shape of OP in our specimens.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the effectiveness of the varus talar tilt test (VTTT) in diagnosing lateral ankle ligament ruptures, proposing that foot internal rotation improves accuracy.
  • In a comparison using 12 cadaver ankles, the traditional VTTT showed less tilting than the modified version with foot internal rotation.
  • Results indicate that the modified VTTT significantly increases diagnostic accuracy for ligament insufficiency, reflecting the mechanics of common ankle injuries.
View Article and Find Full Text PDF

Purpose: The aim of this study is to compare the distance from the peroneal tendons sheath to the sural nerve in different points proximally and distally to the tip of the fibula.

Methods: Ten fresh-frozen lower extremities were dissected to expose the nerves and tendons. Having the posterior tip of the fibula as a reference, the distance between the tendons sheath and the sural nerve was measured in each point with a tachometer with three independent different observers.

View Article and Find Full Text PDF