Biocomposites Limited

Engineered for Revision Arthroplasty

Hydroxyapatite is the most proven and widely accepted synthetic graft material for bone reconstruction.

Allogran-N, hydroxyapatite granules have outstanding biocompatibility, provided by their similarity to bone mineral in properties of chemical composition and crystalline structure.

Allogran-N is CE Marked and cleared by FDA for use in conjunction with allograft material. Readily available in conveniently sized packs, Allogran-N reduces the surgeon's reliance on allograft tissue and the attendant risks associated with it's use.

KEY ADVANTAGES
• Engineered granules for compaction resistance
• Optimised porosity for early cell attachment and proliferation
• Controlled particle size for prosthesis stability
• Slowly resorbing calcium matrix for long term bony incorporation

INDICATIONS
• Impaction grafting of the acetabulum
• Impaction grafting for revision of a failed femoral stem
• Impaction grafting in knee revision surgery

In a recently published1 five year study of hip revision cases, Allogran-N has produced excellent results in both the femur and acetabulum.

1 Variables Affecting Initial Stability of Impaction Grafting for Hip Revision, Clinical Orthopaedics and Related Research. (423):174-180, March 2005

Angular microporous granules combining to form a multiporous matrix

At 21 days in-vitro - Reflected light micrograph
Human osteoblasts proliferating on the microporous surface of Allogran-N

At 12 months post op
Histological section of human femur showing new bone (B) surrounding Allogran-N (G)

Read Allogran-N Research Article



68 year old female showing evidence of femoral loosening of a cementless stem and a large lytic area in the roof of the acetabulum		Twelve months following surgery Excellent incorporation of the stem has been achieved with no evidence of distal migration

ORDER CODES
10cc 35cc	700-010 700-035