AP and lateral radiographs showing bony and fibrous union
after removing external fixator in post-operative week 44.
Spigelian hernias occur through a defect in the linea semilunaris, a fibrous union
of the rectus sheath with the aponeuroses of the transverse abdominal and abdominal internal oblique muscles that extends from the level of the ninth rib cartilage to the pubic symphysis.
Bony union was absent between the fractures and only fibrous union
was present, which was curetted with removal of fibrous tissue to re-approximate the fracture line.
Choung and Donoff 25 found delayed wound healing in 3.6% while Hague and Schivmmer 31 reported 4.4% of fibrous union in 714 patients.
Fibrous union of the mandible: A review of 27 patients.
Additionally, as healing occurs, the caudal segment is supported from below by fibrous union
to the maxillary crest.