Limits...
Imaging of cartilage repair procedures.

Sanghvi D, Munshi M, Pardiwala D - Indian J Radiol Imaging (2014)

Bottom Line: The gamut of surgical techniques, normal postoperative radiological appearances, and possible complications have been described.The five common techniques of cartilage repair currently offered include bone marrow stimulation (microfracture or drilling), mosaicplasty, synthetic resorbable scaffold grafts, osteochondral allograft transplants, and autologous chondrocyte implantation (ACI).Complications of cartilage repair procedures that may be demonstrated on magnetic resonance imaging (MRI) include plug loosening, graft protuberance, graft depression, and collapse in mosaicplasty, graft hypertrophy in ACI, and immune response leading to graft rejection, which is more common with synthetic grafts and cadaveric allografts.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Kokilaben Dhirubhai Ambani Hospital, Andheri (W), Mumbai, Maharashtra, India.

ABSTRACT
The rationale for cartilage repair is to prevent precocious osteoarthritis in untreated focal cartilage injuries in the young and middle-aged population. The gamut of surgical techniques, normal postoperative radiological appearances, and possible complications have been described. An objective method of recording the quality of repair tissue is with the magnetic resonance observation of cartilage repair tissue (MOCART) score. This scoring system evaluates nine parameters that include the extent of defect filling, border zone integration, signal intensity, quality of structure and surface, subchondral bone, subchondral lamina, and records presence or absence of synovitis and adhesions. The five common techniques of cartilage repair currently offered include bone marrow stimulation (microfracture or drilling), mosaicplasty, synthetic resorbable scaffold grafts, osteochondral allograft transplants, and autologous chondrocyte implantation (ACI). Complications of cartilage repair procedures that may be demonstrated on magnetic resonance imaging (MRI) include plug loosening, graft protuberance, graft depression, and collapse in mosaicplasty, graft hypertrophy in ACI, and immune response leading to graft rejection, which is more common with synthetic grafts and cadaveric allografts.

No MeSH data available.


Related in: MedlinePlus

Failure of synthetic osteochondral scaffold implant with a MOCART score of 10. (A) Follow-up arthroscopic image show foreign body reaction with synovitis and (B) failure of graft incorporation (arrow). (C) Follow-up sagittal proton density MRI shows failure of graft incorporation with incomplete integration, damaged surface, and inhomogeneous signal of graft
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4126139&req=5

Figure 6: Failure of synthetic osteochondral scaffold implant with a MOCART score of 10. (A) Follow-up arthroscopic image show foreign body reaction with synovitis and (B) failure of graft incorporation (arrow). (C) Follow-up sagittal proton density MRI shows failure of graft incorporation with incomplete integration, damaged surface, and inhomogeneous signal of graft

Mentions: These involve using artificial osteochondral scaffolds to replace the focal defects of bone and cartilage [Figures 5 and 6]. The technique is similar to mosaicplasty, except that there is no need for graft harvest. The advantage of this technique is the absence of donor site morbidity associated with OATS. The disadvantage of the present generation of artificial scaffolds is the risk of immune reactions, early graft resorption with collapse, and incomplete graft resorption.[8]


Imaging of cartilage repair procedures.

Sanghvi D, Munshi M, Pardiwala D - Indian J Radiol Imaging (2014)

Failure of synthetic osteochondral scaffold implant with a MOCART score of 10. (A) Follow-up arthroscopic image show foreign body reaction with synovitis and (B) failure of graft incorporation (arrow). (C) Follow-up sagittal proton density MRI shows failure of graft incorporation with incomplete integration, damaged surface, and inhomogeneous signal of graft
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4126139&req=5

Figure 6: Failure of synthetic osteochondral scaffold implant with a MOCART score of 10. (A) Follow-up arthroscopic image show foreign body reaction with synovitis and (B) failure of graft incorporation (arrow). (C) Follow-up sagittal proton density MRI shows failure of graft incorporation with incomplete integration, damaged surface, and inhomogeneous signal of graft
Mentions: These involve using artificial osteochondral scaffolds to replace the focal defects of bone and cartilage [Figures 5 and 6]. The technique is similar to mosaicplasty, except that there is no need for graft harvest. The advantage of this technique is the absence of donor site morbidity associated with OATS. The disadvantage of the present generation of artificial scaffolds is the risk of immune reactions, early graft resorption with collapse, and incomplete graft resorption.[8]

Bottom Line: The gamut of surgical techniques, normal postoperative radiological appearances, and possible complications have been described.The five common techniques of cartilage repair currently offered include bone marrow stimulation (microfracture or drilling), mosaicplasty, synthetic resorbable scaffold grafts, osteochondral allograft transplants, and autologous chondrocyte implantation (ACI).Complications of cartilage repair procedures that may be demonstrated on magnetic resonance imaging (MRI) include plug loosening, graft protuberance, graft depression, and collapse in mosaicplasty, graft hypertrophy in ACI, and immune response leading to graft rejection, which is more common with synthetic grafts and cadaveric allografts.

View Article: PubMed Central - PubMed

Affiliation: Department of Radiology, Kokilaben Dhirubhai Ambani Hospital, Andheri (W), Mumbai, Maharashtra, India.

ABSTRACT
The rationale for cartilage repair is to prevent precocious osteoarthritis in untreated focal cartilage injuries in the young and middle-aged population. The gamut of surgical techniques, normal postoperative radiological appearances, and possible complications have been described. An objective method of recording the quality of repair tissue is with the magnetic resonance observation of cartilage repair tissue (MOCART) score. This scoring system evaluates nine parameters that include the extent of defect filling, border zone integration, signal intensity, quality of structure and surface, subchondral bone, subchondral lamina, and records presence or absence of synovitis and adhesions. The five common techniques of cartilage repair currently offered include bone marrow stimulation (microfracture or drilling), mosaicplasty, synthetic resorbable scaffold grafts, osteochondral allograft transplants, and autologous chondrocyte implantation (ACI). Complications of cartilage repair procedures that may be demonstrated on magnetic resonance imaging (MRI) include plug loosening, graft protuberance, graft depression, and collapse in mosaicplasty, graft hypertrophy in ACI, and immune response leading to graft rejection, which is more common with synthetic grafts and cadaveric allografts.

No MeSH data available.


Related in: MedlinePlus