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Dive into the research topics where M. Graf is active.

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Featured researches published by M. Graf.


Acta Orthopaedica | 2008

Deformity correction with the Taylor spatial frame after growth arrest of the distal radius: A technical note on 2 cases

D. Seybold; Jan Gessmann; G. Muhr; M. Graf

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Unfallchirurg | 2008

Der Taylor Spatial Frame

D. Seybold; J. Geßmann; L. Özokyay; G. Muhr; M. Graf

INTRODUCTION Posttraumatic deformities in the lower limb are mainly multidirectional, with angulation, translation, and rotatory deformities. Acute corrections with internal fixation are often not possible due to the soft tissue damage and the extent of the deformity. The Taylor Spatial Frame (TSF) allows correction in a virtual hinge with 6 axes, thus enabling the correction of multidirectional deformities simultaneously. METHODS From February 2003 until December 2006, we applied 31 TSFs to 20 patients with a posttraumatic deformity of the tibia and hindfoot. The mean patient age was 41 years (range 12-73). 9 patients had a nonunion of the tibia with deformity, 6 had a malunion of the lower tibia and ankle, 3 had an angular deformity after ankle fusion, and 2 had malaligned Ilizarov bone segment transports. The mean follow-up time was 25.3 months (range 10-82). RESULTS In all 20 patients, full correction of the deformity was achieved. The mean time for correction was 29 days (range 5-82). On average, the frame was worn (time to healing) 164.2 days (80-300) and the mean distraction rate was 1.1 mm/day (0.5-2.0). The Web-based planning was done two times per case for full deformity correction. Complications were 3 pin-site infections, 2 insufficient callus formations and 1 pinhole stress fracture. CONCLUSIONS The main advantage of the TSF compared with other external frames is the ability to perform simultaneous correction of angular, axial, translational, and rotatory deformities. This enables a reduced correction time and increased patient comfort.


Unfallchirurg | 2008

The Taylor Spatial Frame. Correction of posttraumatic deformities of the tibia and hindfoot

D. Seybold; Jan Gessmann; L. Özokyay; G. Muhr; M. Graf

INTRODUCTION Posttraumatic deformities in the lower limb are mainly multidirectional, with angulation, translation, and rotatory deformities. Acute corrections with internal fixation are often not possible due to the soft tissue damage and the extent of the deformity. The Taylor Spatial Frame (TSF) allows correction in a virtual hinge with 6 axes, thus enabling the correction of multidirectional deformities simultaneously. METHODS From February 2003 until December 2006, we applied 31 TSFs to 20 patients with a posttraumatic deformity of the tibia and hindfoot. The mean patient age was 41 years (range 12-73). 9 patients had a nonunion of the tibia with deformity, 6 had a malunion of the lower tibia and ankle, 3 had an angular deformity after ankle fusion, and 2 had malaligned Ilizarov bone segment transports. The mean follow-up time was 25.3 months (range 10-82). RESULTS In all 20 patients, full correction of the deformity was achieved. The mean time for correction was 29 days (range 5-82). On average, the frame was worn (time to healing) 164.2 days (80-300) and the mean distraction rate was 1.1 mm/day (0.5-2.0). The Web-based planning was done two times per case for full deformity correction. Complications were 3 pin-site infections, 2 insufficient callus formations and 1 pinhole stress fracture. CONCLUSIONS The main advantage of the TSF compared with other external frames is the ability to perform simultaneous correction of angular, axial, translational, and rotatory deformities. This enables a reduced correction time and increased patient comfort.


Orthopedic Reviews | 2010

Additional external hinged fixator after open repositioning and internal fixation of acute elbow instability in non-compliant patients

Sebastian Berendes; Christoph Zilkens; Alexandros Anastasiadis; M. Graf; G. Muhr; T. Kälicke

This is a retrospective analysis of the clinical and radiological outcome in 11 patients with complex acute posttraumatic elbow instability after dislocation. These patients had also been treated with a hinged external fixator after open reduction, capsular and ligamentous reconstruction and internal fixation, because of an expected diminished compliance, to avoid a secondary dislocation of the internal fixation. Concentric stability and a sufficient range of motion of the elbow joint were achieved in all cases. Non-compliant patients were classified by the surgeon as not compliant or not able or not willing to cooperate post-operatively for various reasons, such as alcoholism, drug abuse, mental disability, cerebral trauma or senile dementia. Non-compliant patients had undergone open reduction and internal fixation of an acute posttraumatic unstable elbow. The addition of a hinged external fixator allows early intensive mobilization, and can protect and improve the clinical outcome after these complex elbow injuries. This evaluation remains, of course, largely subjective and decision making is not easy because in most cases, the patient was not known before surgery. Thus, the only patient exclusion criteria in this study was surgeon classification as “compliant”.


Unfallchirurg | 2010

Operative treatment of pediatric open fractures of the lower limb using the Taylor spatial frame fixator

Jan Gessmann; H. Baecker; M. Graf; L. Özokyay; G. Muhr; D. Seybold

The operative management of open fractures of the lower limb requires a consistent treatment to avoid soft tissue complications. Acute angular shortening of the fracture enabling primary soft tissue closure is still an uncommon operative technique because of difficulties in correcting the secondary deformity. The case of a pediatric open fracture of the lower limb (Gustilo type IIIa) is described, which was treated with acute angular shortening followed by gradual correction using the Taylor spatial frame (TSF).


Chirurg | 2009

Operative management and fracture care of the lower leg with the Ilizarov fixator in morbidly obese patients: literature review and results.

J. Gessmann; D. Seybold; H. Baecker; G. Muhr; M. Graf

Given the rising prevalence of obesity, surgeons and hospitals must become more familiar with the treatment and operative management of obese patients. Several additional pre- and postoperative considerations must be involved such as appropriate assessment of comorbidities and requirements for special equipment. There are still very few data regarding morbidly obese patients with BMIs >50 kg/m(2). After a general literature review of operative management of obese patients, we report on fracture care of the lower limb in such patients with custom-made Ilizarov ring fixators. We found them suited to bear enormous weight-loading but that associated comborbidities can limit successful fracture care.


Unfallchirurg | 2010

Versorgung der kindlichen offenen Unterschenkelfraktur mit dem Taylor-spatial-frame-Fixateur

J. Geßmann; H. Baecker; M. Graf; L. Özokyay; G. Muhr; D. Seybold

The operative management of open fractures of the lower limb requires a consistent treatment to avoid soft tissue complications. Acute angular shortening of the fracture enabling primary soft tissue closure is still an uncommon operative technique because of difficulties in correcting the secondary deformity. The case of a pediatric open fracture of the lower limb (Gustilo type IIIa) is described, which was treated with acute angular shortening followed by gradual correction using the Taylor spatial frame (TSF).


Unfallchirurg | 2009

Der Taylor-spatial-frame-Fixateur

J. Geßmann; D. Seybold; H. Baecker; G. Muhr; M. Graf

Despite adequate primary treatment many ankle fractures result in post-traumatic deformities and arthrosis. Revision mostly requires a multidirectional correction whereas internal fixation procedures are often not applicable due to soft tissue damage and the extent of deformity. The Taylor spatial frame enables simultaneous correction of multidirectional deformities through a virtual hinge using the same ideas of distraction osteogenesis as the Ilizarov fixator. The presented case demonstrates minimally invasive correction of a complex deformity of the ankle with the Taylor spatial frame fixator. Orthogonal alignment was achieved and a stabilizing tibiotalar arthrodesis was performed achieving a good functional and pain-free result.


Unfallchirurg | 2010

Versorgung der kindlichen offenen Unterschenkelfraktur mit dem Taylor-spatial-frame-Fixateur@@@Operative treatment of pediatric open fractures of the lower limb using the Taylor spatial frame fixator

J. Geßmann; H. Baecker; M. Graf; L. Özokyay; G. Muhr; D. Seybold

The operative management of open fractures of the lower limb requires a consistent treatment to avoid soft tissue complications. Acute angular shortening of the fracture enabling primary soft tissue closure is still an uncommon operative technique because of difficulties in correcting the secondary deformity. The case of a pediatric open fracture of the lower limb (Gustilo type IIIa) is described, which was treated with acute angular shortening followed by gradual correction using the Taylor spatial frame (TSF).


Unfallchirurg | 2009

[The Taylor spatial frame fixator. Soft-tissue distraction for post-traumatic varus deformities of the hindfoot].

Jan Gessmann; D. Seybold; H. Baecker; G. Muhr; M. Graf

Despite adequate primary treatment many ankle fractures result in post-traumatic deformities and arthrosis. Revision mostly requires a multidirectional correction whereas internal fixation procedures are often not applicable due to soft tissue damage and the extent of deformity. The Taylor spatial frame enables simultaneous correction of multidirectional deformities through a virtual hinge using the same ideas of distraction osteogenesis as the Ilizarov fixator. The presented case demonstrates minimally invasive correction of a complex deformity of the ankle with the Taylor spatial frame fixator. Orthogonal alignment was achieved and a stabilizing tibiotalar arthrodesis was performed achieving a good functional and pain-free result.

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G. Muhr

Ruhr University Bochum

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D. Seybold

Ruhr University Bochum

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H. Baecker

Ruhr University Bochum

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J. Geßmann

Ruhr University Bochum

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L. Özokyay

Ruhr University Bochum

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T. Kälicke

Ruhr University Bochum

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