Filip Stockmans's research while affiliated with KU Leuven and other places
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Publications (44)
Aim
Polymers and metals, such as polyethylene (PE) and cobalt chrome (CoCr), are common materials used in thumb-based joint implants, also known as CMC (Carpometacarpal) arthroplasty. The purpose of this review was to investigate the reported failure modes related to wear debris from these type of materials in CMC implants. The impact of wear debri...
Introduction:
The use of MRI scans for pre-operative surgical planning of forearm osteotomies provides additional information of joint cartilage and soft tissue structures and reduces radiation exposure in comparison with the use of CT scans. In this study, we investigated whether using 3D information obtained from MRI with and without cartilage i...
Re-displacement of a pediatric diaphyseal forearm fracture can lead to a malunion with symptomatic impairment in forearm rotation, which may require a corrective osteotomy. Corrective osteotomy with two-dimensional (2D) radiographic planning for malunited pediatric forearm fractures can be a complex procedure due to multiplanar deformities. Three-d...
Purpose
Diagnosis and treatment of subtalar instability (STI) remains complicated and challenging. The purpose of this study was to investigate the outcome of an anatomical reconstruction of the cervical ligament in patients with suspected chronic STI.
Methods
This prospective study assessed the results of a surgical reconstruction of the cervical...
Background
Today, the relative contribution of each ligamentous structure in the stability of the subtalar joint is still unclear. The purpose of this study is to assess the material properties of the different ligamentous structures of the subtalar joint.
Methods
Eighteen paired fresh-frozen cadaveric feet were used to obtain bone–ligament–bone c...
Background
A lateral ankle sprain (LAS) is the most common musculoskeletal injury in the physically active population. It is uncertain what percentage of these patients develop persisting symptoms including pain, recurrent sprains and subjective instability. This systematic review was conducted to assess the presence and duration of persistent symp...
High-resolution peripheral quantitative computed tomography (HR-pQCT) devices can scan extremities at bone microstructural level in vivo and are used mainly in research of bone diseases. Two HR-pQCT scanners are commercially available to date: XtremeCT (first generation) and XtremeCT-II (second generation) from Scanco Medical AG (Switzerland). Rece...
Closed treatment of paediatric diaphyseal forearm fractures carries the risk of re-displacement, which can lead to symptomatic malunions. This is because growth will not correct angulation deformity as it does in metaphyseal fractures. The purpose of this prospective cohort study was to evaluate the outcomes after 3-D-planned corrective osteotomy w...
A thorough knowledge of the anatomy of the ankle ligaments is indispensable for the diagnosis and treatment of patients with ankle instability. The evolution towards minimally invasive techniques and more anatomic procedures to restore normal joint mechanics increases the need for detailed information about the normal ligamentous anatomy, its possi...
The evolution towards more anatomical procedures to restore normal joint mechanics increases the need for detailed knowledge of normal anatomy, possible variations and the position of the ligamentous attachments related to local landmarks. In this chapter we describe the position of the normal anatomical footprints of the ATFL and CFL. Guidelines a...
Obtaining high-resolution scans of bones and joints for clinical applications is challenging. HR-pQCT is considered the best technology to acquire high-resolution images of the peripheral skeleton in vivo, but a breakthrough for widespread clinical applications is still lacking. Recently, we showed on trapezia that CBCT is a promising alternative p...
Over the last decades, the use of high-resolution imaging systems to assess bone microstructural parameters has grown immensely. Yet, no standard defining the quantification of these parameters exists. It has been reported that different voxel size and/or segmentation techniques lead to different results. However, the effect of the evaluation softw...
PurposeAnatomical reconstruction of the calcaneofibular ligament (CFL) is a common technique to treat chronic lateral ankle instability. A bone tunnel is used to fix the graft in the calcaneus. The purpose of this study is to provide some recommendations about tunnel entrance and tunnel direction based on anatomical landmarks.Methods
The study cons...
The in‐vivo effect of four different types of thumb and thumb‐wrist orthoses on the 3D kinematics of the trapeziometacarpal (TMC), scaphotrapeziotrapezoidal (STT) and radioscaphoid joints was quantified using CT‐scanning.
Eighteen healthy female volunteers were recruited. The dominant hand of each subject was scanned in fourthumb and wrist position...
Background
Chronic subtalar instability is a disabling complication after acute ankle sprains. Currently, the literature describing the anatomy of the intrinsic subtalar ligaments is limited and equivocal which causes difficulties in diagnosis and treatment of subtalar instability. The purpose of this study is to assess the anatomical characteristi...
An unstable distal ulnar stump after Darrach resection, alongside pathology of the radiocarpal joint, is difficult to manage without fusion of at least one joint. Currently, no standard 2-in-1 arthroplasty is available. We report the case of a 72-year-old woman with loosening of the radial stem of a Universal 2 total wrist prosthesis combined with...
Purpose
A bone tunnel is often used during the reconstruction of the anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL). The purpose of this study is to compare proposed directions for drilling this fibular tunnel and to assess potential tunnel length, using a 5-mm-diameter tunnel and surrounding bone.
Methods
Anonymous DICOM...
High‐resolution peripheral quantitative computed tomography (HR‐pQCT) is considered as the best technique to measure bone microarchitecture in vivo. However, a breakthrough for medical applications is inhibited because of the restricted field of view (∼9 mm) and a relatively long acquisition time (∼3 minutes). The goal of this study was to compare...
Background:
Subtalar joint instability (STI) is considered as a potential source of chronic lateral hindfoot instability. However, clinical diagnosis of STI is still challenging. This systematic review was conducted to assess the consistency of the clinical entity "subtalar instability", to investigate the reliability of available diagnostic tools...
Background:
Malunion is the most frequent complication seen after a fracture of the distal end of the radius. The primary aim of this study was to compare patient-reported outcome measures (PROMs) after corrective osteotomy for malunited distal radial fractures with and without 3-dimensional (3D) planning and use of patient-specific surgical guide...
Ligament reconstruction can provide pain relief in patients with a painful, unstable, pre‐arthritic trapeziometacarpal (TMC) joint. Imbrication of the dorsoradial ligament (DRL) has been proposed as a minimal invasive stabilization technique. It requires less invasive surgery than an Eaton‐Littler technique and shows promising long‐term clinical ou...
Due to the rising life expectancy, bone diseases (e.g. osteoporosis, osteoarthritis) and trauma (e.g. fracture) have become an important socio-economic burden. Accurate visualization and quantification of the bone microstructure in vivo is seen as an important step to enhance diagnosis and treatment. Micro-computed tomography (microCT) has become t...
The advent of new endoscopic and percutaneous techniques to treat ankle instability increases the need for anatomical landmarks. When performing an anatomical reconstruction of the calcaneofibular ligament(CFL), the footprint on the calcaneus is difficult to indicate.
The purpose of this study is to evaluate a method to locate the footprint of the...
Purpose:
To quantify the effect of osteoarthritis (OA) and total trapeziometacarpal (TMC) joint replacement on thumb kinematics during the primary physiological motions of the thumb.
Methods:
We included 4 female patients with stage III TMC OA. A computed tomography-based markerless method was used to quantify the 3-dimensional thumb kinematics...
Purpose:
The ARPE joint arthroplasty was introduced in 1991 for the treatment of symptomatic trapeziometacarpal (TMC) osteoarthritis. The primary outcome of this prospective study is to report the medium- to long-term joint survival of this prosthesis. Our secondary outcomes are the clinical and functional results.
Methods:
A prospective, consec...
Introduction
Biomechanical and anatomical research has shown that the dorsal radial ligament (DRL) is thicker and stiffer then the anterior oblique ligament (AOL). The DRL as the key stabilizing structure of the trapeziometacarpal (TMC) joint has been documented extensively. The aim of the current study is to quantify the influence of a surgical DR...
The thumb plays a crucial role in basic hand function. However, the kinematics of its entire articular chain have not yet been quantified. Such investigation is essential to improve our understanding of thumb function and to develop better strategies to treat thumb joint pathologies. The primary objective of this study is to quantify the in vivo ki...
Chronic instability is a common complication of lateral ankle sprains. If nonoperative treatment fails, a surgical repair or reconstruction may be indicated. Today, endoscopic techniques to treat ankle instability are becoming more popular. This article describes an endoscopic technique, using a step-by-step approach, to reconstruct the ATFL and CF...
Current motion capture techniques all have shortcomings when applied to the 3D quantitative evaluation of thumb base motion. Dynamic CT might overcome these shortcomings but, so far, robustness of this technique in more than one specimen has not yet been demonstrated.The aim of the current study is to further evaluate the use of dynamic CT for quan...
Purpose:
Reconstruction of the anterior talofibular ligament may be indicated in cases of residual instability after conservative treatment. Often, a bone tunnel is used for fixation in the talar bone. The purpose of this study is to evaluate possible routes for drilling the talar tunnel.
Methods:
Virtual tunnels were generated in a 3D bone mode...
The assessment of the contact biomechanics in the trapeziometacarpal (TMC) joint during functional tasks represents a relevant way to obtain a better understanding of the onset of osteoarthritis (OA). CT scans of the hand region of 20 female volunteers were taken in relaxed neutral, lateral key pinch and power grasp configuration. 3D models of the...
Background:
Flexor tendon repair in the hand remains challenging in avoiding tendon rupture and adhesion formation. Post-operative mobilization has been shown to be critical in regaining functional range of motion.
Objectives:
The objective of this study is 2-fold: to assess the influence of wrist position on maximum grip force generated in a po...
The respective roles of the dorsoradial (DRL) and anterior oblique (AOL) ligaments in stability of the highly mobile trapeziometacarpal (TMC) joint remain disputed. Earlier publications have pointed to the AOL as the key stabilizing structure; yet, more recent publications have challenged the stabilizing role of the AOL, favoring the DRL as the mai...
Although airbags are designed to save lives and protect victims from serious injuries, airbag deployment can cause unwanted lesions. In this case report, two cases are presented of young women who sustained an important fracture dislocation of the first carpometacarpal joint (CMC I joint) caused by airbag deployment during a car collision.
Corrective osteotomies of the distal radius for symptomatic malunion are time-tested procedures that rely on accurate corrections. Patients with combined intra- and extra-articular malunions present a challenging deformity. Virtual planning and patient-specific instruments (PSIs) to transfer the planning into the operating room have been used both...
Surgical treatment of intraarticular calcaneal fractures is often associated with postoperative wound problems. Soft tissue necrosis, bone loss and uncontrollable infection are a challenge for the surgeon and amputation may in some cases be the ultimate solution. A free flap can be very helpful to cover a significant soft tissue defect and help in...
Malunion is the most common complication of distal radius fracture. It has previously been demonstrated that there is a correlation between the quality of anatomical correction and overall wrist function. However, surgical correction can be difficult because of the often complex anatomy associated with this condition. Computer assisted surgical pla...
In this study, a novel rapid prototyping technology was used to fabricate scaphoid and lunate bone prostheses, two carpal bones that are prone to avascular necrosis. Carpal prostheses were fabricated with an Envisiontec Perfactory SXGA stereolithography system using Envisiontec eShell 200 photocurable polymer. Fabrication was guided using 3-D model...
Citations
... [10,[12][13][14] However, many studies suggest the subtalar ligaments having an important function in the stability of the subtalar joint. [15][16][17][18][19] Therefore, several studies described and recommended the reconstruction of the cervical ligament (CL) in complex cases of subtalar instability. [4,6,18,20,21] Most of these publications were technical notes or review articles describing the techniques without mentioning clinical results. ...
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... The lateral ankle ligaments are the most common musculoskeletal injured structures in the physically active population [8,16]. A single ankle sprain results in chronic symptoms in approximately 10% of all patients [14]. The lateral ligaments of the ankle are composed of the anterior talofibular ligament (ATFL), the calcaneofibular ligament (CFL) and the posterior talofibular ligament (PTFL) [5,7]. ...
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... Lastly, although the subchondral bone plate was included and evaluated in scans, the segmentation of subchondral cortical bone using the standard protocol of Scanco software may not accurately analyze the subchondral cortical bone. Further study using adaptive local thresholding technique may enhance the accuracy of HRpQCT for subchondral cortical bone [49]. ...
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... The data were acquired prospectively at the Erasmus MC (Erasmus University Medical Center, Rotterdam, The Netherlands) under ethical approval of the Medical Ethical Testing Committee, reference number 52987.078.15. Detailed information on the inclusion criteria and scan parameters can be found in the study by Roth et al. [12] and in the Supplementary Material S.1. ...
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... In particular, pre-clinical microCT systems could perform high resolution peripheral quantitative CT (HRpQCT) in vivo acquisitions on distal ends of patients' limbs [52][53][54]. It would thus be possible to carry out in vivo assessment, and the dose deposited to patients would be intrinsically reduced compared to conventional CT, as reported by recent literature [9]. ...
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... In the present study, multiple 2D and 3D characterization techniques were used to investigate the intricate 3D structure of osteodentin in shark functional teeth, capitalizing on recent advancements in the spatial resolution of micro-computed tomography (micro-CT) and focused ion beam-scanning electron microscopy (FIB-SEM) [30][31][32][33] . The extensive hierarchical canal network revealed by these approaches and local variation in mineral density point to possible temporal and spatial relationships between vascular passages and mineralization. ...
... Moreover, these studies have not been interested in neighboring anatomical elements. Only Michel et al. [19] carried out a study including secondary dissection and subsequent measurements in relation to the sural nerve and fibular tendons. ...
... Connective tissue injuries, structural deformities, and structural integrity loss can be difficult to characterize in single-frame static diagnostic images. As a result, imaging of the moving joint has the potential to provide differentiating diagnostic information for use in orthopedic assessment and longitudinal management of injury and disease [1][2][3][4][5][6][7][8][9]. Improvements in dynamic image acquisition technology and analytic methods continue to offer new potential mechanisms to harness the diagnostic information contained in dynamic images of moving joints. ...
... 2,8,9,13,17,25 The cervical ligament is a static structure that connects the talus and calcaneus at the lateral side of the subtalar joint ( Figure 1) and has been suggested as the strongest ligament connecting the 2 bones. 19,20 According to a recent study, its footprint dimensions are broader than those of the calcaneofibular ligament (CFL), alluding to its crucial role in stabilizing the subtalar joint. 20 However, the information describing cervical ligament involvement in PCFD is scant. ...
... Calcaneal bone tunnels are commonly used when performing anatomical reconstruction of the CFL. The entrance of the calcaneal tunnel represents the fixation site of the graft and should be as close to the anatomical footprint as possible [18]. Anatomical procedures result in better functional outcomes and less secondary osteoarthritis than non-anatomic procedures [22]. ...
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