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Subchondral Bone Alignment in Osteochondral Allograft Transplants for Large Oval Defects of the Medial Femoral Condyle: Comparison of Lateral versus Medial Femoral Condyle Donors.
Taylor, Kelly M R; Locke, Conor S; Mologne, Timothy S; Bugbee, William D; Grant, John A.
Afiliación
  • Taylor KMR; MedSport, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA.
  • Locke CS; Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA.
  • Mologne TS; Orthopedic & Sports Institute of the Fox Valley, Appleton, WI, USA.
  • Bugbee WD; Scripps Clinic, La Jolla, CA, USA.
  • Grant JA; MedSport, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA.
Cartilage ; 15(3): 240-249, 2024 Sep.
Article en En | MEDLINE | ID: mdl-38282570
ABSTRACT

OBJECTIVE:

Supply-demand mismatch of medial femoral condyle (MFC) osteochondral allografts (OCAs) remains a rate-limiting factor in the treatment of osteochondral defects of the femoral condyle. Surface contour mapping was used to determine whether a contralateral lateral femoral condyle (LFC) versus ipsilateral MFC OCA differs in the alignment of donornative subchondral bone for large osteochondral defects of the MFC.

DESIGN:

Thirty fresh-frozen human femoral condyles were matched by tibial width into 10 groups of 3 condyles (MFC recipient, MFC donor, and LFC donor) each for 3 cartilage surgeons (90 condyles). The recipient MFC was imaged using nano-computed tomography scan. Donor oval grafts were harvested from each matched condyle and transplanted into a 17 mm × 36 mm defect created in the recipient condyle. Following the first transplant, the recipient condyle was imaged and superimposed on the native condyle nano-CT scan. The donor plug was removed and the process repeated for the other donor. Surface height deviation and circumferential step-off height deviation were compared between native and donor subchondral bone surfaces for each transplant.

RESULTS:

There was no statistically significant difference in mean subchondral bone surface deviation (LFC = 0.87 mm, MFC = 0.76 mm, P = 0.07) nor circumferential step-off height (LFC = 0.93 mm, MFC = 0.85 mm, P = 0.09) between the LFC and MFC plugs. There were no significant differences in outcomes between surgeons.

CONCLUSIONS:

There were no significant differences in subchondral bone circumferential step-off or surface deviation between ipsilateral MFC and contralateral LFC oval-shaped OCAs for 17 mm × 36 mm defects of the MFC.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cartílago Articular / Fémur / Aloinjertos Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Cartilage Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cartílago Articular / Fémur / Aloinjertos Límite: Adult / Aged / Female / Humans / Male / Middle aged Idioma: En Revista: Cartilage Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos