Upper limp
ARROW shoulder prosthesis
The ARROW shoulder system provides surgeons with greater flexibility in their therapeutic arsenal for shoulder reconstruction.
CONCEPT
When it was introduced in 2003, the ARROW shoulder system was one of the first universal systems for shoulder arthroplasty.
- It allows surgeons to implant a reverse or anatomical prosthesis with the same set of instruments. The evolution to ARROW II has enabled less invasive and more precise glenoid preparation using orientation guides.
- The universal stem can be used with and without cement for hemiarthroplasty, total anatomical (4-peg cemented glenoid base or cementless metal-back base) or reverse shoulder arthroplasty.
- The instrumentation set consists of three instrument baskets.
- The surgeon can keep the current humeral stem and then:
- convert a hemiarthroplasty into a reverse shoulder or,
- convert a total shoulder into a reverse shoulder.
- The surgeon can also keep the humeral stem and metal-back glenoid base and then:
- convert a total shoulder with metal-back glenoid base into a reverse shoulder.
The single instrumentation set for both types of implants is simple and contributes to the reproducibility of these techniques.
CONCEPT
Depending on the patient’s needs, the surgeon may have to revise the prosthesis.
Features
Arrow II total shoulder arthroplasty (humeral and glenoid sides) is ready for e-ORTHO templating software.
1
ANATOMICAL PROSTHESIS
Stem:
– Universal stem for both anatomical or reverse arthoplasty,
– Quadrangular titanium stem, smooth at diaphyseal level and T40 coated with HAP at metaphyseal level, cemented and cementless version which can be cemented on its diaphysis,
– Size ranging from 6 to 14 mm increment 2 mm (16 mm on request).
Head (anatomical):
– Off centred head +2 and +4 mm, size 2 by 2 from Ø 39 au Ø 54 according to the head chosen,
– Different diameters (from 39 to 54) and up to 2 thicknesses available depending on the head chosen,
– Stainless steel.
Humeral insert (reverse):
– Standard and off-centered +4 mm,
– UHMWPE mounted on metal-back, impacted by morse cone.
2
REVERSE PROSTHESIS
Stems / 4 sizes / 135° neck-shaft angle:
– 8 mm diameter, 120 mm length,
– 10 mm diameter 125 mm length,
– 12 mm diameter 130 mm length,
– 14 mm diameter 135 mm length,
– material: titanium.
Glenosphere (reverse):
– 3 sizes (36, 39, 42 on request),
– Stainless steel,
– Impacted in the glenoid base by centered morse taper.
Cemented glenoid (anatomical):
– 4 cemented anchorage pegs,
– 3 sizes (44, 46, 48) + 1 on request (50),
– In UHMWPE.
Glenoid insert (anatomical):
– 3 sizes (XS/S, M, L),
– In UHMWPE.
3
UNIVERSAL INSTRUMENT SET: ANATOMICAL AND REVERSE
– 4 trays
The patient’s age, condition of the rotator cuff and bone stock determine which implant is needed.
Indications
