Research Topics
Species | P KloenSummaryAffiliation: Academic Medical Center Country: The Netherlands Publications
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Detail Information
Publications
Bilateral clavicle non-unions treated with anteroinferior locking compression plating (LCP): a case reportPeter Kloen
Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, The Netherlands
Acta Orthop Belg 70:609-11. 2004..The advantages of the anteroinferior positioning of the plate on the clavicle are presented...- Operative treatment of acetabular fracture during pregnancy: a case reportPeter Kloen
Department of Orthopedic Surgery, Academic Medical Center, Meibergdreef 9, 1100 DD Amsterdam, The Netherlands
Arch Orthop Trauma Surg 125:209-12. 2005..Successful treatment of these rare cases is possible with careful pre-, peri-, and postoperative evaluation of the mother and fetus by a multidisciplinary team... 
Temporary joint-spanning external fixation before internal fixation of open intra-articular distal humeral fractures: a staged protocolPeter Kloen
Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, The Netherlands
J Shoulder Elbow Surg 21:1348-56. 2012..This study determined outcomes after temporary joint-spanning external fixation before internal fixation of open intra-articular distal humeral fractures...- Co-expression of BMPs and BMP-inhibitors in human fractures and non-unionsPeter Kloen
Department of Orthopaedic Surgery, Academic Medical Centre, Amsterdam, The Netherlands
Bone 51:59-68. 2012..An imbalance between the local presence of BMP and BMP-inhibitors may switch the direction towards healing or non-healing of a fracture... 
Management of forearm nonunions: current conceptsPeter Kloen
Department of Orthopaedic Surgery, Academic Medical Center, Meibergdreef 9, 1100 DD, Amsterdam, The Netherlands
Strategies Trauma Limb Reconstr 7:1-11. 2012..In this review, we aim to summarize the available evidence in the literature on forearm nonunions and combine it with practical recommendations based on our clinical experience to help guide the management of this complex problem...- Elevated transforming growth factor β and mitogen-activated protein kinase pathways mediate fibrotic traits of Dupuytren's disease fibroblastsCarola Krause
Department of Molecular Cell Biology and Centre for Biomedical Genetics, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands
Fibrogenesis Tissue Repair 4:14. 2011..abstract:.. - The effects of melatonin versus placebo on delirium in hip fracture patients: study protocol of a randomised, placebo-controlled, double blind trialAnnemarieke de Jonghe
Academic Medical Centre, University of Amsterdam, Department of Internal Medicine, Geriatrics section F4 218, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
BMC Geriatr 11:34. 2011.... - Delayed bladder rupture after symphyseal hardware failurePeter Kloen
Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, The Netherlands
J Trauma 58:860-2. 2005 - BMP signaling components are expressed in human fracture callusP Kloen
Hospital for Special Surgery, New York, NY 10021, USA
Bone 33:362-71. 2003..Complete elucidation of the roles of BMP in bone formation will hopefully lead to improved fracture healing care... - Anteroinferior plating of midshaft clavicle nonunions and fracturesPeter Kloen
Department of Orthopedic Surgery, Academic Medical Center, Amsterdam, The Netherlands
Oper Orthop Traumatol 21:170-9. 2009..Anatomic reconstruction of clavicle with limited dissection and biomechanically optimal osteosynthesis. Anteroinferior plate placement to minimize patient's discomfort and need for implant removal... - Treatment of proximal ulna and olecranon fractures by dorsal platingPeter Kloen
Department of Orthopedic Surgery, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Oper Orthop Traumatol 21:571-85. 2009..Anatomic reconstruction of proximal ulna and olecranon fractures allowing early mobilization and prevention of ulnohumeral arthritis... - Treatment of diaphyseal non-unions of the ulna and radiusPeter Kloen
Department of Orthopaedic Surgery, Academic Medical Centre, Meibergdreef 9, 1100 DD, Amsterdam, The Netherlands
Arch Orthop Trauma Surg 130:1439-45. 2010..Treatment of these non-unions can be challenging due to poor bone stock, broken hardware, scarring and stiffness due to long-term immobilisation... - Supercutaneous plating: use of a locking compression plate as an external fixatorPeter Kloen
Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, The Netherlands
J Orthop Trauma 23:72-5. 2009..These properties also make them good candidates for external plate fixation; we call this technique "supercutaneous plating.".. - Subtrochanteric fracture after cannulated screw fixation of femoral neck fractures: a report of four casesPeter Kloen
Hospital for Special Surgery, New York, New York 10021, USA
J Orthop Trauma 17:225-9. 2003..We present our experience in treating four of these complications. The common denominator for all four patients seemed to be an entry point in the lateral cortex below the level of the most inferior edge of the lesser trochanter... - Treatment of midshaft clavicular delayed and non-unions with anteroinferior locking compression platingSjoerd A Stufkens
Department of Orthopaedic Surgery, Academic Medical Center, PO Box 22660, 1100 DD, Amsterdam, The Netherlands
Arch Orthop Trauma Surg 130:159-64. 2010..Although union rates are generally high, most patients require hardware removal as the plate is prominent under the skin causing pain and cosmetic problems... - Apparently isolated partial articular fractures of the radial head: prevalence and reliability of radiographically diagnosed displacementJob Doornberg
Hand and Upper Extremity Service, Department of Orthopedic Surgery, Massachusetts General Hospital, Boston, MA 02116, USA
J Shoulder Elbow Surg 16:603-8. 2007..45). Because apparently isolated, stable partial fractures of the radial head are infrequently displaced and observers have moderate disagreement regarding the diagnosis of displacement, it is likely that displacement is overdiagnosed... - Use of bone morphogenetic proteins in traumatologyR J Westerhuis
Department of Orthopaedic Surgery, Academic Medical Center, Meibergdreef 9, 1100 DD Amsterdam, The Netherlands
Injury 36:1405-12. 2005..The purpose of this work is to give a brief overview of BMPs and to review the clinical data currently available on the use of BMPs in fracture healing... - Limb salvage after subtotal supramalleolar amputation by initial shortening followed by tibial lengtheningR K Marti
Department of Orthopaedic Surgery, Academic Medical Center, G4 Noord, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
Arch Orthop Trauma Surg 123:317-21. 2003..We present a patient with a subtotal traumatic supramalleolar amputation of the leg, which was initially treated by a vascular reconstruction with deliberate bone and soft-tissue shortening... - Biomechanical evaluation of fixation of comminuted olecranon fractures: one-third tubular versus locking compression platingGeert A Buijze
Orthopaedic Research Center Amsterdam, Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, The Netherlands
Arch Orthop Trauma Surg 130:459-64. 2010..The purpose of this study was to compare the stiffness and strength of locking compression plate (LCP) fixation to one-third tubular plate fixation in a cadaveric comminuted olecranon fracture model with a standardised osteotomy... - Patient related functional outcome of glenoid rim fractures treated with open reduction and internal fixationBart A Van Dijkman
Trauma Unit, Department of Surgery, Academic Medical Center, University of Amsterdam, The Netherlands
Acta Orthop Belg 76:730-4. 2010..However, patient reported functional outcome was disappointing in 21% of the patients... - Open reduction and internal fixation of humeral nonunions : a biomechanical and clinical studyIvan F Rubel
Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY 10021, USA
J Bone Joint Surg Am 84:1315-22. 2002.... - Clinical evaluation of locking compression plate fixation for comminuted olecranon fracturesGeert Buijze
Department of Orthopaedic Surgery, Academic Medical Center, Meibergdreef 9, Amsterdam 1100 DD, The Netherlands
J Bone Joint Surg Am 91:2416-20. 2009..To overcome this problem, unicortical screws can be applied with use of a contoured locking compression plate. The present study was designed to assess the effectiveness of this fixation method... - Minimally invasive treatment of pilon fractures with a low profile plate: preliminary results in 17 casesOlivier Borens
The Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
Arch Orthop Trauma Surg 129:649-59. 2009..To determine the results of "biologic fixation" with a minimally invasive plating technique using a newly designed low profile "Scallop" plate in the treatment of pilon fractures... - Open reduction and internal fixation of delayed unions and nonunions of fractures of the distal part of the humerusDavid L Helfet
Hospital for Special Surgery, New York, NY 10021, USA
J Bone Joint Surg Am 85:33-40. 2003..The purpose of the present retrospective study was to evaluate the results of open reduction and internal fixation of delayed unions and nonunions of fractures of the distal part of the humerus... - Treatment of subtrochanteric nonunionsJasper S de Vries
Department of Orthopaedic Surgery, Academic Medical Center, P O Box 22660, 1100 DD Amsterdam, The Netherlands
Injury 37:203-11. 2006..This study shows that treatment of a subtrochanteric nonunion with a blade plate consistently leads to bony union with a good to excellent hip score in the vast majority of the patients (25 out of 33 hips)... - Complex open trauma of the shoulder: a case reportOlivier Borens
Hospital for Special Surgery, New York, New York 10021, USA
Am J Orthop 33:149-52. 2004 - Anteroinferior plating of midshaft clavicular nonunionsP Kloen
Department of Orthopaedic Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, New York 10021, USA
J Orthop Trauma 16:425-30. 2002..We conclude that anteroinferior plating is a reliable and safe technique that leads to high rates of bony union in midshaft clavicular nonunions... - Intertrochanteric osteotomy for posttraumatic arthritis after acetabular fracturesR K Marti
Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, The Netherlands
J Orthop Trauma 15:384-93. 2001..However, we have observed significant improvement in hip function with a decrease in pain and disability when such patients are treated with an intertochanteric osteotomy... - Loss of alignment after surgical treatment of posterior Monteggia fractures: salvage with dorsal contoured platingDavid Ring
Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA 02114, USA
J Hand Surg [Am] 29:694-702. 2004..Dorsal contoured plating of the ulna in combination with other procedures can help salvage a malaligned posterior Monteggia fracture with satisfactory function restored in the majority of patients... - ORIF of delayed unions and nonunions of distal humeral fractures. Surgical techniqueDavid L Helfet
Hospital for Special Surgery, New York, NY 10021, USA
J Bone Joint Surg Am 86:18-29. 2004..The purpose of the present retrospective study was to evaluate the results of open reduction and internal fixation of delayed unions and nonunions of fractures of the distal part of the humerus... - Bilateral Monteggia fracturesPeter Kloen
Hospital for Special Surgery, New York, New York, USA
Am J Orthop 32:98-100. 2003..Despite the surgical and rehabilitative challenges posed by our patient's case, excellent results were obtained for both elbows... - Expression and activation of the BMP-signaling components in human fracture nonunionsPeter Kloen
The Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
J Bone Joint Surg Am 84:1909-18. 2002..The presence of pSmad1 signified the activated state of the BMP receptors, which implies that the BMP signal is transduced inside the cell... - Nonunions of the distal tibia treated by reamed intramedullary nailingJeffrey Richmond
Orthopaedic Trauma Service, Hospital for Special Surgery, New York, NY 10021, USA
J Orthop Trauma 18:603-10. 2004..It allows for excellent correction of deformity, which is an essential component of the procedure... - Fractures of the capitellum and trochleaThierry G Guitton
Academic Medical Center, Amsterdam, The Netherlands
J Bone Joint Surg Am 91:390-7. 2009..We assessed the experience with operative stabilization of fractures of the capitellum and trochlea at one level-I trauma center over a twenty-eight-year period... - Computer-assisted and patient-specific 3-D planning and evaluation of a single-cut rotational osteotomy for complex long-bone deformitiesJ G G Dobbe
Department of Biomedical Engineering and Physics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
Med Biol Eng Comput 49:1363-70. 2011.... - Transforming growth factor-beta: possible roles in Dupuytren's contractureP Kloen
Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, USA
J Hand Surg Am 20:101-8. 1995..Both cell types secreted both active and latent TGF-beta. Our results suggest that growth factors such as TGF-beta and EGF may play a role in Dupuytren's contracture... - Lengthening osteotomy at the intertrochanteric level with simultaneous correction of angular deformitiesR K Marti
Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, The Netherlands
Int Orthop 25:355-9. 2001..We present our results in nine patients. The aim of this paper is to provide the orthopaedic surgeon with a detailed approach to treating these deformities with reproducible results... - Anterior tension band plating for anterior tibial stress fractures in high-performance female athletes: a report of 4 casesOlivier Borens
Orthopaedic Trauma Service, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
J Orthop Trauma 20:425-30. 2006..This approach should be considered in those athletes who wish to avoid the more prolonged convalescence associated with nonoperative treatment, or the problems, especially of the knee, associated with intramedullary nailing... - Surgical treatment of intra-articular fractures of the distal part of the humerus. Functional outcome after twelve to thirty yearsJob N Doornberg
Academic Medical Center, G4 Noord, Kamer 249, Meibergdreef 9, 1100 DD Amsterdam, The Netherlands
J Bone Joint Surg Am 89:1524-32. 2007..This investigation addressed the long-term clinical and radiographic results of surgical treatment of intra-articular distal humeral fractures (AO Type C) as assessed with use of standardized outcome measures... - MRI assessment of the posterior acetabular wall fracture in traumatic dislocation of the hip in childrenIvan F Rubel
Department of Orthopaedic Surgery, Weill Medical College of Cornell University, Hospital for Special Surgery, 535 East 71st Street, New York, NY 10021, USA
Pediatr Radiol 32:435-9. 2002..Magnetic resonance imaging (MRI) disclosed an extensive posterior wall traumatic involvement in both cases and helped to decide in favor of open reduction of the hip and internal fixation of the posterior wall fragment... - Biomechanical and clinical evaluation of posterior malleolar fractures. A systematic review of the literatureMichel P J van den Bekerom
Department of Orthopaedic Surgery, Academic Medical Center, Amsterdam, The Netherlands
J Trauma 66:279-84. 2009..Ultimately, the goal is to try to formulate helpful recommendations for clinical practice... - Open reduction and internal fixation compared with excision for unstable displaced fractures of the radial headAnneluuk L C Lindenhovius
Harvard Medical School, Orthopaedic Hand and Upper Extremity Service, Massachusetts General Hospital, Boston, MA 02114, USA
J Hand Surg Am 32:630-6. 2007..To determine if excision of the radial head for treatment of an unstable, displaced fracture is associated with a higher rate of early complications or late arthrosis as compared with open reduction and internal fixation (ORIF)... - Long-term outcome of operatively treated fracture-dislocations of the olecranonAnneluuk L C Lindenhovius
Harvard Medical School, Cambridge, MA, USA
J Orthop Trauma 22:325-31. 2008..To report the long-term results of operative treatment of anterior and posterior olecranon fracture-dislocations and compare them with the results recorded fewer than 2 years after surgery... - Orthopaedic trauma in the pregnant patientKyle Flik
Orthopaedic Surgeon, Northeast Orthopaedics, LLP, Albany, NY, USA
J Am Acad Orthop Surg 14:175-82. 2006..An experienced multidisciplinary team consisting of an obstetrician, perinatologist, orthopaedic surgeon, anesthesiologist, radiologist, and nursing staff will optimize the treatment of both the pregnant patient and her fetus... - Femoral head injuries: Which treatment strategy can be recommended?Philipp Henle
Department of Orthopaedic Surgery, Inselspital, University of Berne, CH 3010 Berne, Switzerland
Injury 38:478-88. 2007.... - Correspondence between perceived disability and objective physical impairment after elbow traumaAnneluuk L C Lindenhovius
Orthopaedic Hand and Upper Extremity Service, Massachusetts General Hospital, Yawkey Center, Boston, MA 02114, USA
J Bone Joint Surg Am 90:2090-7. 2008..To further evaluate the relationship between impairment and disability, we tested the hypothesis that objective loss of elbow motion predicts perceived elbow-related task-specific disability better than does pain after elbow trauma...