Orthopedics > OCOSH Classification > Trauma > Fractures > Malunion

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Malunion [OCOSH Code: D017759 425852005 M84.0 WI_FR_MU]

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Degenerative changes at the knee and ankle related to malunion of tibial fractures

Location: http://www.jbjs.org.uk/cgi/reprint/78-B/5/722

We re-examined clinically and radiologically 88 patients with a fracture of the lower leg at a mean follow-up of 15 years. Forty-three fractures (49%) had healed with malalignment of at least 5°. More arthritis was found in the knee and ankle adjacent to the fracture than in the comparable joints...
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Infected Femur Malunion

Location: http://www.hwbf.org/hwb/conf/rich3/feminu.htm

Discussion on OTA mailing list (ORT-L)
50 year old male from South America 2.5 years out from an apparent supracondylar femur fx treated with some combination of an ex-fix and internal fixation. Had drainage that ceased at some point. Now has a 40deg flexion contracture with pain. Bone scan shows diffuse...
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Malunion in the lower limb

Location: http://www.jbjs.org.uk/cgi/reprint/81-B/2/312.pdf

Nomograms derived from mathematical analysis indicate that the level of malunion is the most important determinant of changes in the moment arm of the knee, the plane of the ankle and alterations in limb length. Testing in five patients undergoing reconstruction showed a mean error of postoperative limb length of 2.2 mm (SD 0.8 mm), knee...
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Malunion of the Tibia Wheeless

Location: http://www.wheelessonline.com/ortho/malunion_of_the_tibia

accetable reduction:
- more than 50% of cortical overlap;
-> 10 deg of angulation in any plane is unacceptable
- <5 deg of varus or valgus;
- <10 deg of anterior or posterior angulation;
- <10 deg of rotation;
- <1 cm for leg length discrepancy;
- no...
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Pelvic Malunion

Location: http://www.hwbf.org/hwb/conf/barr1/blad.htm

A 41 year old woman is referred by a reconstructive gynecological surgeon because of a urinary bladder herniation through a disrupted anterior pelvic ring.
The patient sustained multiple injuries 11 months previously, including the pelvic ring disruption seen in the attached photos. The anterior injury was a fracture through the left...
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Second fracture of the distal humerus after varus malunion of a supracondylar fracture in children

Location: http://www.jbjs.org.uk/cgi/reprint/80-B/5/791

Nine children sustained a second fracture of the distal humerus after union of an ipsilateral supracondylar fracture which had healed with cubitus varus. There were eight boys and one girl with a mean age of five years (1 to 8) at the time of the second fracture which occurred at...
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The effect of rotational malunion of the radius and the ulna on supination and pronation

Location: http://www.jbjs.org.uk/cgi/reprint/84-B/7/1070

We have assessed the influence of isolated and combined rotational malunion of the radius and ulna on the rotation of the forearm. Osteotomies were made in both the radius and the ulna at the mid-diaphyseal level of five cadaver forearms and stabilised with intramedullary metal implants. Malunion about the axis...
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Tibia Varus IR malunion

Location: http://www.hwbf.org/hwb/conf/obre6/tibvar.htm

Discusion on ORT-L list
49 yo college professor s/p right proximal tibia fx w/ compartment syndrome. Pt had fasciotomies, ex-fix and delayed percutaneous plating laterally w/ LISS. He had late deep infection at 6 mos and plate removed and fx appeared healed at time. Pt had some varus and deformity, but...
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Tibial Malunion and Medial Knee OA

Location: http://www.hwbf.org/hwb/conf/kull1/kull1.htm

Case presentation
53 y/o male, had trauma 20 years ago. Now has tibial diaphysis malunion of 12 degrees varus and 14 deg. of retroversion. At present the problem is knee medial compartment osteoarthrosis due tibial malposition. What would you do in this case?
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