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Nonossifying fibromas of the distal tibia: possible etiologic relationship to the interosseous membrane.

Muzykewicz DA, Goldin A, Lopreiato N, Fields K, Munch J, Dwek J, Mubarak SJ - J Child Orthop (2016)

Bottom Line: The remaining two lesions occurred directly posterior.The vast majority of distal tibial NOFs occur in a distinct anatomic location at the distal extent of the interosseous membrane, which may have etiologic implications.IV (case series).

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopedic Surgery, Rady Children's Hospital, 3030 Children's Way, Suite 410, San Diego, CA, 92123, USA.

ABSTRACT

Purpose: Nonossifying fibromas (NOFs) present in a characteristic pattern in the distal tibia. Their predilection to this region and etiology remain imprecisely defined.

Methods: We performed a retrospective chart review of patients between January 2003 and March 2014 for distal tibial NOFs. We then reviewed radiographs (XRs), computed tomography (CT), and magnetic resonance imaging (MRI) for specific lesion characteristics.

Results: We identified 48 distal tibia NOFs in 47 patients (31 male, 16 female; mean age 12.3 years, range 6.9-17.8). This was the second most common location in our population (30 % of NOFs), behind the distal femur (42 %). Thirty-four lesions had CT and nine had MRI. Thirty-one percent were diagnosed by pathologic fracture. Ninety-six percent of lesions were located characteristically in the distal lateral tibia by plain radiograph, in direct communication with the distal extent of the interosseous membrane on 33 of the 34 (97 %) lesions with CT available for review and all nine (100 %) with MRI. The remaining two lesions occurred directly posterior.

Conclusions: The vast majority of distal tibial NOFs occur in a distinct anatomic location at the distal extent of the interosseous membrane, which may have etiologic implications.

Level of evidence: IV (case series).

No MeSH data available.


Related in: MedlinePlus

Characteristic location of a large NOF sprouting from the distal lateral tibia
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Fig2: Characteristic location of a large NOF sprouting from the distal lateral tibia

Mentions: Our query yielded 161 NOFs. Figure 1 demonstrates their anatomic distribution. Forty-eight lesions in 47 patients localized to the distal tibia. There was a male predilection (66 %) and the average age at initial XR was 12.3 years (range 6.9–17.8). Thirty-one presented with a pathologic fracture at the time of diagnosis. Radiographs were available for all patients, with 46 (96 %) lesions localizing to the distal and lateral aspect of the tibia, proximal to the physis (Fig. 2). The remaining two localized directly posteriorly at approximately the same height distally.Fig. 1


Nonossifying fibromas of the distal tibia: possible etiologic relationship to the interosseous membrane.

Muzykewicz DA, Goldin A, Lopreiato N, Fields K, Munch J, Dwek J, Mubarak SJ - J Child Orthop (2016)

Characteristic location of a large NOF sprouting from the distal lateral tibia
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4940240&req=5

Fig2: Characteristic location of a large NOF sprouting from the distal lateral tibia
Mentions: Our query yielded 161 NOFs. Figure 1 demonstrates their anatomic distribution. Forty-eight lesions in 47 patients localized to the distal tibia. There was a male predilection (66 %) and the average age at initial XR was 12.3 years (range 6.9–17.8). Thirty-one presented with a pathologic fracture at the time of diagnosis. Radiographs were available for all patients, with 46 (96 %) lesions localizing to the distal and lateral aspect of the tibia, proximal to the physis (Fig. 2). The remaining two localized directly posteriorly at approximately the same height distally.Fig. 1

Bottom Line: The remaining two lesions occurred directly posterior.The vast majority of distal tibial NOFs occur in a distinct anatomic location at the distal extent of the interosseous membrane, which may have etiologic implications.IV (case series).

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopedic Surgery, Rady Children's Hospital, 3030 Children's Way, Suite 410, San Diego, CA, 92123, USA.

ABSTRACT

Purpose: Nonossifying fibromas (NOFs) present in a characteristic pattern in the distal tibia. Their predilection to this region and etiology remain imprecisely defined.

Methods: We performed a retrospective chart review of patients between January 2003 and March 2014 for distal tibial NOFs. We then reviewed radiographs (XRs), computed tomography (CT), and magnetic resonance imaging (MRI) for specific lesion characteristics.

Results: We identified 48 distal tibia NOFs in 47 patients (31 male, 16 female; mean age 12.3 years, range 6.9-17.8). This was the second most common location in our population (30 % of NOFs), behind the distal femur (42 %). Thirty-four lesions had CT and nine had MRI. Thirty-one percent were diagnosed by pathologic fracture. Ninety-six percent of lesions were located characteristically in the distal lateral tibia by plain radiograph, in direct communication with the distal extent of the interosseous membrane on 33 of the 34 (97 %) lesions with CT available for review and all nine (100 %) with MRI. The remaining two lesions occurred directly posterior.

Conclusions: The vast majority of distal tibial NOFs occur in a distinct anatomic location at the distal extent of the interosseous membrane, which may have etiologic implications.

Level of evidence: IV (case series).

No MeSH data available.


Related in: MedlinePlus