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H IP F R A C T U R E S Y S T E M S
PIN SYSTEM
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I N D E X
Introduction 2
Indications 3
Features & Benefits
Slipped Capital Femoral Epiphysis 4
Intracapsular Femoral Neck Fracture 5
Operative Technique
Slipped Capital Femoral Epiphysis
Introduction 8
1 Patient Positioning & Reduction 8
2 Stabilization Guide-Wire Insertion 9
3 Incision 94 Guide-Wire Insertion 9
5 Drilling & Measurement 10
6 Pin / Introducer Assembly 10
7 Pin Insertion 11
Case Report 12
Femoral Neck Fracture
1 Patient Positioning & Reduction 14
2 Incision 14
3 Distal Guide-Wire Insertion 14
4 Distal Drilling 15
5 Proximal Drilling 15
6 Proximal Drilling (cont.) 16
7 Pin / Introducer Assembly 16
8 Proximal Pin Insertion 17
9 Distal Pin Insertion 17
Case Report 18
Pin Removal 19
Ordering Information 20
References
1 Slipped Capital Femoral Epipysis 212 Femoral Neck Fractures 21 & 22
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I N T R O D U C T I O N
The Hansson Pin system, designed by Professor
Lars Ingvar Hansson at the University of Lund in
Sweden, was developed from research into the
effects of osteosynthetic devices on the bloodsupply to the femoral head.
Specifically developed for the treatment of
intracapsular femoral neck fractures, the Hansson
Pin system has been designed to minimise surgical
trauma to the patient and offer secure, stable
fixation with reduced risk of healing complications
for all grades of fracture.
Twenty years of successful clinical studies carriedout (6 theses and more than 70 published articles)
has enhanced the Hansson Pin System to its
current form.
References
1. Hannson L.I. (1982): Osteosynthesis with the Hook-Pin in Slipped Capital
Femoral Epiphysis. Acta Orthop. Scand. 53: 87-96
2. Stromqvist B., Hansson L.I. (1984): Femoral head vitality in femoral neck
fracture after Hook-Pin Internal Fixation. Clin. Orthop. 191: 105-1093. Stromqvist B., Hansson L.I., Nilsson L.T., and Thorngren K.G. (1987):
Hook-Pin Fixation in femoral neck fractures. A two year follow-up study of 300
cases. Clin. Orthop. 218: 58-62
4. Ceder L., Stromqvist B., Hansson L.I. (1987): Effects of strategy changes in thetreatment of femoral neck fractures during a 17 year period. Clin. Orthop.
218: 53-575. Bray T.J., Smith-Hoeffer B., Hooper A., Timmerman L. (1988): The displaced
femoral fracture. Clin. Orthop. 230: 127-1406. Comprehensive Care of Hip Fractures. Bauer G.C.H., Hansson L.I., Lidgren L.,
Stromqvist B., Thorngren K.G., Scientific Exhibit. A.A.O.S. - Las Vegas 1985.
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I N D I C A T I O N S
T r a n s c e r v i c a l a n dS u b c a p it a l N e c k
F r a c t u r e s
B a s a l N e c kF r a c t u r e s
S l ip p e d C a p i t a lF e m o r a l E p ip h y s i s
P E D I A T R I C :
A D U L T :
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F E A T U R E S & B E N E F I T S
P r e v e n t in g D ia s t a s is a n d f u r t h e rd i s p l a c e m e n t o f t h e e p ip h y s i s
The risk of further peroperative displacement of the
femoral head is reduced by drilling a channel for
the Hansson Pin with the femoral head fixed with
kirschner wires. The smooth outer pin allows the
surgeon to gently push the implant through the
channel, reducing the risk of diastasis between the
femoral neck and the head.1
L a s t in g f ix a t io n
The hook resists loosening of the fixation to the
femoral head as the longitudinal growth of the
femoral neck retracts the pin in the channel
thereby stabilizing the femoral head. Loosening of
the osteosynthetic material is reduced because of
resorption and growth of the femoral neck under
normal conditions.1
R e d u c in g t h e r i s k o f u n e q u a l b o n ele n g t h
The growth of the femoral neck in cases with
Slipped Capital Femoral Epiphysis, is an indication
of a lack of intra- and postoperative vascular
disturbance, as the nutrition for the proliferating
cells of the growth plate is provided by the
epiphysial vessels. By preserving the blood supply,
the Hansson Pin System is reducing the risk of
unequal bone length.1
E a s y e x t r a c t io n
The risk of the pin being trapped in the bone is
reduced as the pin surface is smooth. The hook is
easily withdrawn back into the body of the pin,
which can then be removed.1
Frontal view
Lateral view
S L IP P E D C A P IT A LF E M O R A L E P IP H Y S IS
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F E A T U R E S & B E N E F I T S
P R E S E R V E S B O N E IN T E G R IT Y
M in im u m B o n e In t e r f e r e n c e .
Creates minimum disruption to cancellous bone,
and no additional fixation points are required in
the femoral shaft.Reduces the risk of avascular necrosis. Reduces
the risk of secondary fracture.
P R E S E R V E S T H E B L O O D S U P P L Y
M in im u m S u r g ic a l T r a u m a .
Their smooth profile allows the pins to slide into
place without turning or hammering. This
minimises disruption to the blood supply and the
consequent danger of avascular necrosis.2
Reduces the risks of segmental collapse and
non-union.
R E D U C E S S U R G E R Y
S m a ll In c i s io n .
The complete procedure is carried out through a
4-5cm incision.
Short Procedure.
Simple instrumentation and uncomplicated
procedure allow fixation to be achieved within
an average of 15 minutes. The procedure lends
itself to spinal anaesthesia.
Simple Implant Removal.
The procedure for pin removal is quick and
straightforward.
Minimises anaesthetic related risks.
A L L O W S E A R LY M O B IL IS A T IO N
S t a b le F i x a t io n .
The security and stability of fixation allow most
patients to be mobilised during their first post-
operative day and discharged early.3
Minimises the risks of prolonged bed rest
following surgery. Offers potential cost savings
to the hospital.4
IN T R A C A P S U L A RF E M O R A L N E C KF R A C T U R E
Inferior pin contacts inferiorcortex of the femoral neck.
Superior pin contactsposterior cortex.
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P R O V ID E S S E C U R E F IX A T IO N
O p t im u m R e s is t a n c e t o R o t a t io n .
Peripheral pin placement within the neck
provides maximum resistance to rotation.5
Maximum Use of Cortical Bone.
Each pin contacts strong cortical bone in three
places to provide maximum stability.
Firm Anchorage.
The hook of each pin engages in subchondral
bone to provide secure anchorage and prevent
migration or backing out.
The Hansson Pin System does not rely on soft
cancellous bone for support in either fragment
and the risk of displacement is thereby
minimised.
Reduces the risks of redisplacement and non-
union.
M A IN T A I N S B O N Y C O N T A C T
P r e c is e P a r a l le l P l a c e m e n t .
Precise parallel placement enables the pins to
slide within the main bone fragment to ensurecontinuous bony contact even during resorption.
Allows physiological compression at the fracture
site.5
Reduces the risk of non-union.
Positively encourages bone healing.
6
F E A T U R E S & B E N E F I T S
Simple instrumentation ensuresprecise parallel placement.
Three point contact with cortical boneprovides maximum stability.
prox
dist
a ntpost
Parallel placement of thepins ensure continuouscompression at thefracture site.
Cross section of the
femoral neck
showing pinlocation in 70
consecutive
fractures6
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O P E R A T I V E T E C H N I Q U E
S L I P P E D C A P I T A LF E M O R A L E P I P H Y S I S
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O P E R A T I V E T E C H N I Q U ES L I P P E D C A P I T A L F E M O R A L E P I P H Y S I S
S T R O N G , S T A B L E F IX A T IO N
T H R O U G H A S IM P L E A N D
P R E C I S E P R O C E D U R E
The osteosynthesis consists of a cylindrical pin
inserted in a drill hole and attached to the
femoral head. The drill hole and pin runs at
right angles to the growth zone and is,
depending on the degree of slipping, relatively
centrally located in the femoral neck and
head. The pin is 10-20 mm longer than the
drill hole in order to permit growth in the
length of the femoral neck. Slipping up to 60
can be stabilised by osteosynthesis.
Frontal view Lateral view
1 P a t ie n t P o s i t io n in g & R e d u c t io nThe degree of slipping should be thoroughly
investigated by X-ray examination
preoperatively. Reduction should only be
performed if there is pronounced slipping
without signs of corresponding periosteal bone
formation in the femoral neck.
Fluoroscopy is recommended during theoperation. The image should include the head,
neck and proximal femur down to the lesser
trochanter. The proximal femur should be
positioned so that the neck is parallel to the
radiation beam in the lateral projection. The
foot should therefore be rotated inwards and
fixed in 30-60 inward rotation.
30-60
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O P E R A T I V E T E C H N I Q U ES L I P P E D C A P I T A L F E M O R A L E P I P H Y S I S
2 S t a b i l i s a t io n G u i d e -W i r e In s e r t io nA guide wire is inserted percutaneously in the
trochanteric region into the femoral neck and
head for stabilisation during the operation.
3 I n c i s i o nA 10-20 mm longitudinal subtrochanteric
incision is made and the fascia lata is divided
in the direction of the fibres.
4 G u id e -W i r e In s e r t io nThe guide wire is inserted through the fascia.
In the AP-view the tip of the guide wire should
be level with the lesser trochanter. In the
lateral view it should be central in relation to
the femoral head and neck. Once the
alignment of the guide wire is satisfactory, it is
advanced to the subchondral bone of thefemoral head.
N O T E
To prevent unintended guide-wire
advancement and penetration in the
surrounding tissue, frequently check
the position of the guide-wire under
image intensification.
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O P E R A T I V E T E C H N I Q U ES L I P P E D C A P I T A L F E M O R A L E P I P H Y S I S
5 D r i l l i n g & M e a s u r e m e n tThe cannulated drill and the protective
measuring sleeve are inserted over the end of
the guide wire. The protective sleeve is
pressed against the lateral cortex and the drillis advanced to the subchondral Bone of the
femoral head. The length of the pin is read off
the scale on the drill against the end of the
protective measuring sleeve.
The drill, guide wire and protective measuring
sleeve are removed.
N O T E
All Guide-wires are single use productsand therefore must be discardedat the end of
the surgical procedure.
6 P i n / In t r o d u c e r A s s e m b lyA pin of the length chosen for the proximal hole
is prepared for introduction by passing the inner
introducer through the outer introducer and
screwing it into the base of the pin. The unequal
lugs on the introducer correspond with slots in
the pin.The tip of the handle is inserted through
the hole in the inner introducer and rotated
clockwise until it meets resistance (ie until the tiptouches the base of the threaded inner portion of
the pin).
A pin that is 10-20mm longer than the
measured length is chosen in order to permit
growth of the femoral neck.
N O T E
It is important to make sure that the innerpin is in correct position in the window of
the outer pin prior to insertion.
Direct readingof the length
1 2 3
InnerIntroducer
Outer
Introducer
Hansson
Pin
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O P E R A T I V E T E C H N I Q U ES L I P P E D C A P I T A L F E M O R A L E P I P H Y S I S
7 P i n in s e r t io nA pin of the selected length is introduced in
the drill hole, ensuring that the guide-line on
the outer introducer is pointing superiorly.
When the pin is seen to be in position, thehook is activated by turning the introducer
handle clockwiseas far as it will go. The
introducer assembly and the stabilisation
guide-wire are then removed and the wound is
closed.
N O T E
Bilateral Slipping
In view of the high rate of bilateral slipping,
operation of the contralateral hip is
recommended in cases of slipped capital
femoral epiphysis.1
Guide line facing
superiorly
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C A S E R E P O R TS L I P P E D C A P I T A L F E M O R A L E P I P H Y S I S
X - R A Y C A S E S
Fig.2
Both sides have been operated in the same
anaesthesia to avoid the high risk of later slipping
also on the unaffected side.
Fig. 4The physes are closed and the Hansson Pin seem
retracted into the bone. The positioning of the
hook is the same in the femoral head, showing
the elongation of the femoral neck.
Fig.1
A 15 year old boy with left-sided
Slipped Capital Femoral Epiphysis,
treated with a Hansson Pin
Fig.3View at 3 years, showing attained
size of the femoral neck
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O P E R A T I V E T E C H N I Q U E
F E M O R A L N E C KF R A C T U R E S
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O P E R A T I V E T E C H N I Q U EF E M O R A L N E C K F R A C T U R E S
S T R O N G , S T A B L E F IX A T IO NT H R O U G H A S I M P L E A N DP R E C IS E P R O C E D U R E
1 P a t ie n t P o s i t io n in g & R e d u c t io nReduction is obtained by gentle manipulationand held by immobilisation on a fracture
operating table. If adequate reduction cannot be
obtained, then arthroplasty should be
undertaken.
Hold the drill or the guide-wire, over the hip
joint over the skin surface, and angle under
image intensification so that it is positioned in
line with the femoral neck. With the guide-wire
placed at 135 angle, the pin crosses the lateral
cortex at the level of the lesser trochanter. Thepoint at which this instrument crosses the skin
line is the optimal point for skin incision.
2 I n c i s i o nA 10-20mm incision is made and the fascia lata
is divided in the direction of the fibres.
3 D is t a l G u i d e -W i r e In s e r t io nThe guide-wire together with the guide-wire
bush are inserted through the fascia to the lateral
cortex. In the frontal view the tip of the guide-
wire should be level with or just below the lower
edge of the lesser trochanter. In the lateral view it
should be central in relation to the femoral head
and neck. It is essential to have the guide-wire
very close to the inner medial cortex. Once thealignment of the guide-wire is satisfactory, the
guide-wire is advanced to the subchondral bone
of the femoral head.
The guide-wire bush is removed.
N O T E
To prevent unintended guide-wire
advancement and penetration in the
surrounding tissue, frequently check
the position of the guide-wire under
image intensification.
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4 D is t a l D r i l l in gThe short cannulated drill is inserted over the
end of the guide-wire. The protective measuring
sleeve is advanced to the lateral cortex and
drilling is carried out, using image intensificationto ensure that the drill follows the line of the
guide-wire accurately and does not cut through
the calcar. It is also important to ensure that the
guide-wire does not penetrate the pelvis. When
the drill is fully advanced in the femoral head,
the required length of pin is read off the scale
on the drill protruding from the sleeve. The
protective measuring sleeveand the guide-wire
are then removed.
15
O P E R A T I V E T E C H N I Q U EF E M O R A L N E C K F R A C T U R E S
5 P r o x i m a l D r i l l in gThe next stage is to drill a hole for the proximal
pin as close as possible to the posterior cortex of
the femoral neck. This is achieved by selecting
the drill guide which gives the widest possible
separation of the pins without cutting through
the posterior cortex. The incision is extended 20
to 30mm.
A check can be made, before drilling, to ensurethe correct drill guide has been selected. The
selected drill guide is then pushed over the distal
drill and rotated, in order that the new channel is
situated posteriorly to the distal drill. The sharp
tip of the guide is pushed into the cortex to aid
stability.
N O T E
Make sure that the protective
measuring sleeve is in contact
with the bone.
Direct readingof the length
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O P E R A T I V E T E C H N I Q U EF E M O R A L N E C K F R A C T U R E S
6 P r o x i m a l D r i l l in gEnsuring that the sharp tip of the drill guide is
firmly located against the femoral cortex, the
long solid drill is used to prepare the second
hole, using image intensification in both AP andlateral views to ensure that the drill does not cut
through the calcar. The hole is drilled up and
into the subchondral bone of the head. The
lateral view alone indicates whether the drill is
advanced sufficiently in the femoral head. The
length of pin required is again read off the scale
on the drill protruding from the drill guide. The
drill and drill guide are then removed.
7 P i n / In t r o d u c e r A s s e m b lyA pin of the length chosen for the proximal hole
is prepared for introduction by passing the inner
introducer through the outer introducer and
screwing it into the base of the pin. The unequal
lugs on the introducer correspond with slots in
the pin. The tip of the handle is inserted through
the hole in the inner introducer and rotated
clockwise until it meets resistance (ie until the tiptouches the base of the threaded inner portion of
the pin).
N O T E
It is important to clean the channel by
running the drill in forward motion as the
drill is removed.
N O T E
It is important to make sure that the inner
pin is in correct position in the window of
the outer pin prior to insertion.
1 2 3
Inner
Introducer
OuterIntroducer
HanssonPin
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8 P r o x im a l P i n In s e r t io nThe proximal pin is introduced first, ensuring
that the guide-line on the outer introducer is
pointing anteriorly. When the pin is seen to be in
position, the hook is activated by turning theintroducer handle clockwise as far as it will go.
The position of the introducer ensures that the
hook emerges anteriorly, maximising its fixation
in good quality bone. The introducer assembly is
then removed by unscrewing the inner
introducer anti-clockwise while holding the
outer introducer still. The distal drill and guide-
wireare then removed.
17
O P E R A T I V E T E C H N I Q U EF E M O R A L N E C K F R A C T U R E S
P o s t - O p e r a t iv e C a r e
Full weight-bearing may be allowed from the
first post-operative day as tolerated by the
patient, except in young patients with
displaced fractures: these can be prescribed
a six-week period of nonweight-bearing.
N O T E
Before turning the handle, make sure that the
guide wire has been removed.
9 D is t a l P i n In s e r t io nA pin of the length required for the distal hole
(usually 10 mm longer than the proximal pin) is
mounted on the introducer assembly and
inserted in the same way, but with the guide-line
on the introducer facing superiorly so that the
hook will also emerge superiorly. Again, both AP
and lateral image intensification is utilised to
ensure accurate placement.The wound is sutured and closed in the normal
manner.
Guide Line
A-PView
M-L View
Guide line facingsuperiorly
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C A S E R E P O R TF E M O R A L N E C K F R A C T U R E
X - R A Y C A S E S
Fig.1
Displaced cervical hip fracture
Garden IV
Fig.3
Displaced cervical hip fracture
after reposition and operation
with hook-pin osteosynthesis
Fig.4
Healed cervical hip fracture
2 years after operation withhook-pins
Fig.5
Healed cervical hip fracture
2 years after operation withhook-pins
Fig.2
Displaced cervical hip fracture
after reposition and operation
with hook-pin osteosynthesis
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P I N R E M O V A L
A 10-20mm skin incision is made for pin removal.
The end of the pin can be identified manually or
using image intensification. The fibrous tissue
which often surrounds the end of the pin is
incised.The outer introducer is placed over the extractor
and the extractor is screwed clockwise. Engage the
lugs of the outer introducer into the pin. Continue
to turn the extractor. This withdraws the hook back
into the body of the pin, which can then be
removed.
Occasionally, it may happen that the hook is
removed on its own, leaving behind the body of
the pin. In that case, the body of the pin can beremoved by using the inner introducer.
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H A N S S O N P I N S Y S T E M O R D E R I N G I N F O R M A T I O N
H A N S S O N P IN S
S t a in le s s S t e e l P in T i t a n iu m
R e f L e n g t h R e f
m m
394070S 70mm 694070S
394075S 75mm 694075S394080S 80mm 694080S
394085S 85mm 694085S
394090S 90mm 694090S
394095S 95mm 694095S
394100S 100mm 694100S
394105S 105mm 694105S
394110S 110mm 694110S
394115S 115mm 694115S
394120S 120mm 694120S
394125S 125mm 694125S
394130S 130mm 694130S
394135S 135mm 694135S
394140S 140mm 694140S
IN S T R U M E N T S
R e f . N o . D e s c r ip t i o n
704501 Short Cannulated Drill 6.7mm x 246mmwith Jacobs fitting
704522 Long Solid Drill 6.7mm x 276mmwith Jacobs fitting
704510 Protective Measuring Sleeve
704537 Drill Guide 6mm
with Elastosil handle
704538 Drill Guide 8mmwith Elastosil handle
704539 Drill Guide 10mm
with Elastosil handle
704511 Guide-wire Bush
704515 Outer Introducer
704516 Inner Introducer
704517 Introducer Handle
704518 Extractor
704505S Threaded Guide-wire 2.4mm x 300mm(Single Use - Sterile Packed)
901703 Sterilisation Tray for Instruments(Lid and Insert)
Special Order NOTE: All implants are sterile packed.
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R E F E R E N C E SS l i p p e d C a p i t a l F e m o r a l E p i p y s i s
C l i n i c a l S t u d i e s :
1. Osteosynthesis with the Hook-Pin in Slipped Capital Femoral Epiphysis. Hansson L.I. (1982):
Acta Orthop. Scand. 53: 87-96
2. Epidemiology of Slipped Capital Femoral Epiphysis in Southern Sweden. Hgglund G., Hansson L.I., and Ordeberg G. (1984):
Clinic. Orthop. 191: 82-94
3. Slipped Capital Femoral Epiphysis in Southern Sweden. Long-term Results after Femoral neck Osteotomy. Hgglund G., Hansson L.I., Ordeberg G., and
Sandstrm S. (1986):
Clinic. Orthop. 210: 152-159
4. Vitality of the Slipped Capital Femoral Epiphysis. Preoperative evaluation by tetracycline labeling.
Hgglund G., Hansson L.I., and Ordeberg G. (1985):
Acta Orthop. Scand. 56: 215-217
5. Familial Slipped Capital Femoral Epiphysis. Hgglund G., Hansson L.I., and Sandstrm S. (1986):
Acta Orthop. Scand. 57: 510-512
6. Slipped Capital Femoral Epiphysis in Southern Sweden. Long-term Results after Nailing/Pinning. Hgglund G., Hansson L.I., and Sandstrm S. (1987):
Clinic. Orthop. 217: 190-200
7. Bone Growth after Fixing Slipped Femoral Epiphyses: Brief Report. Hgglund G., Bylander B., Hansson L.I., Selvik G. (1988):
J Bone Joint Surg (Br) 70: 845-46
8. Remodelling After Pinning for Slipped Capital Femoral Epiphysis. Jones J.R., Paterson D.C., Hillier T.M., Foster B.K. (1990):
J Bone Joint Surg (Br) 72: 568-73
T h e s i s :
1. Physiolysis of the hip.
Epidemiology, natural history and long time results after closed treatment.
Gunnar Ordeberg, 1986.
2. Physiolysis of the hip.
Epidemiology, etiology and therapy.
Gunnar Hgglund, 1986.
C l i n i c a l S t u d i e s :
1. Vitality of the femoral head after femoral neck fracture evaluated by tetracycline labelling.
Strmqvist B, Ceder L, Hansson LI, Thorngren KG
Arch Orthop Trauma Surg 99:1-6, 1981
2. 85Sr-scintimetry in femoral neck fracture.
Brummer R, Hansson LI, Sjstrand LO
Arch Orthop Trauma Surg 1982:101(1):47-51
3. Scintimetric evaluation of nailed femoral neck fractures with special reference to type of osteosynthesis.
Strmquist B, Hansson LI, Palmer J
Acta Orthop Scand 1983 Jun:54(3):340-7
4. Femoral head vitality after intracapsular hip fracture, 490 cases studied by intravital tetracycline labelling and Tc-MDP radionuclide imaging.
Strmqvist B
Acta Orthop Scand Suppl 200:1-71,1983
5. Emission tomography in femoral neck fracture for evaluation of avascular necrosis.
Strmqvist B, Brismar J, Hansson LI
Acta Orthop Scand 54:872-7, 1983
6. Technetium-99m-methylendiphosphonate scintimetry after femoral neck fracture.
A three-year follow-up study.
Strmqvist B, Brismar J, Hansson LI
Clin Orthop 1984 Jan-Feb:(182):177-89
7. Femoral head vitality in femoral neck fracture after hook-pin internal fixation.
Strmquist B, Hansson LI
Clin Orthop 1984 Dec:(191):105-9
8. Two-year follow-up of femoral neck fractures. Comparison of osteosynthesis methods.
Strmqvist B, Hansson LI, Nilsson LTActa Orthop Scand 1984 Oct:55(5):521-5
9. Femoral head vitality at reoperation for femoral neck fracture complications.
Strmqvist B, Hansson LI, Palmer J
Arch Orthop Trauma Surg 1984:103(4):235-40
R E F E R E N C E SF e m o r a l N e c k F r a c t u r e s
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R E F E R E N C E SF e m o r a l N e c k F r a c t u r e s ( c o n t . )
10. Hip fracture in rheumatoid arthritis.
Strmqvist B
Acta Orthop Scand 1984 Dec:55(6):624-8
11. External and biopsy determination of peroperative Tc-99m MDP femoral-head labbeling in fracture of the femoral neck.
Strmqvist B, Brismar J, Hansson LI
J Nucl Med 1984 Aug:25(8):854-8
12. Hook-pin fixation in femoral neck fractures. A two-year follow-up study of 300 cases.
Strmqvist B, Hansson LI, Nilsson LT
Clin Orthop 218:58-62, 1987
13. Effects of strategy changes in the treatment of femoral neck fractures during a 17-year period.
Ceder L, Strmqvist B, Hansson LI
Clin Orthop 1987 218:53-7
14. Prognostic precision in postoperative, 99Tc-MDP scintimetry after femoral neck fracture.
Strmqvist B, Hansson LI, Nilsson LT
Acta Orthop Scand 1987 58:494-8
15. Displacement in femoral neck fractures. A numerical analysis of 200 fractures.
Eliasson P, Hansson LI, Krrholm J
Acta Orthop Scand 1988 Aug:59(4):361-426.
16. Treatment of hip fractures in rheumatoid arthritis.
Strmqvist B, Kelly I, Lidgren L
Clin Orthop 1988 Mar:(228):75-8
17. Fixation of fractures of the femoral neck using screws or hook-pins. Radionuclide study and short-term results.
Strmqvist B, Hansson LI, Ross HRev Chir Orthop 1988:74(7):609-13
18. Intracapsular pressures in undisplaced fractures of the femoral neck.
Strmquist B, Nilsson LT, Egund N
J Bone Joint Surg:Br: 1988 Mar:70(2):192-4
19. Function after hook-pin fixation of femoral neck fractures. Prospective 2-year follow-up of 191 cases.
Nilsson LT, Strmqvist B, Thorngren KG
Acta Orthop Scand 1989 Oct:60(5):573-8
20. Stability of femoral neck fractures. A postoperative roentgen stereophotogrammetric analysis.
Ragnarsson JI, Hansson LI, Krrholm J
Acta Orthop Scand 1989 Jun:60(3):283-735.
21. Internal fixation of femoral neck fractures in Parkinsons disease. 32 patients followed for 2 years.
Londos E., Nilsson L.T., Strmqvist B.
Acta Orthop Scand 1989; 60(6):682-685
22. Stability of femoral neck fracture. Roentgen stereophotogrammetry of 29 hook-pinned fractures.
Ragnarsson JI, Krrholm JActa Orthop Scand 1991; 62(3):201-207.
23. Femoral neck fracture fixation with hook-pins. 2 years results and learning curve in 626 prospective cases.
Strmqvist B., Nilsson L.T., Thorngren K.G.
Acta Orthop Scand 1992; 63(3):282-287
24. Bone mineral content and fixation strength of femoral neck fractures. A cadaver study.
Sjstedt A., Zetterberg C.,Hansson T., Hult E., Elkstrm L.
Acta Orthop Scand 1994; 65(2):161-165
25. Factors Influencing Postoperative Movement in Displaced Femoral Neck Fractures: Evaluation by Conventional Radiography and Stereography.
Ragnarsson J.I., Krrholm J.
Journal of Orthopaedic Trauma 1992; N2: 152-158.
26. Function of the hip after femoral neck fractures treated by fixation or secondary total hip replacement.
Nilsson LT, Franzen H, Strmqvist B, Wiklund I
Int Orthop 1991:(15):315-18
27. The effect of Implant design and bone density on maximum torque and holding power for femoral neck fracture devices.
Eriksson F., Mattsson P., Larsson S.
Annales Chirurgiae et Gynaecologiae 2000; 89: 119-123
28. Treatment of femoral neck fracture with Hansson Pins. A biomechanical study.
Uta S., Inoue Y., Kaneko K., Mogami A., Tobe M., Maeda M., Iwase H., Obayashi O.
Japan Clinical Biomechanics 2000; 21:377-383
29. Quality of life is better after osteosynthesis than after hemioarthroplasty in femoral neck fractures.
Nilsson LT, Jaalovara P, Franzen H, Virkkunen H, Strmqvist B
Submitted.
T h e s i s :
1. Femoral head vitality after intracapsular hip fracture.
Bjrn Strmqvist, 1983.
2. Primary osteosynthesis for femoral neck fracture.
Lars T Nilsson, 1989.
3. Femoral neck fracture stability. Evaluation with roentgen stereophotogrammetric analysis, magnetic resonance imaging, scintimetry, radiography and
histopatology.
Jon Ragnarsson, 1991.
7/23/2019 Hansson
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Stryker Trauma
Selzach AGBohnackerweg 12545 SelzachSwitzerland
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PIN SYSTEM
The Trochanteric Gamma Nail is the latest development in
Orthinox, the continuing evolution of the Gamma LockingNail family designed for rapid and secure fixation of intertrochanteric and
pertrochanteric fractures. Combining strength and biomechanical advantages of the
existing Gamma family it is the Golden standard for proximal femoral fractures.
The Long Gamma Nail is a specialised development of theoriginal Gamma Locking Nail allowing surgeons to extend the
benefits of the highly successful standard implant for trochanteric fractures. It hasbeen designed to treat subtrochanteric, ipsilateral neck and shaft fractures as wellas for prophylactic use.
The OMEGA PLUS Compression Hip Screw System integrates innovative featuressuch as sideplate made of superstrong alloy material and improvedinstrumentation. OMEGA PLUS Plates and Lag Screws are available in Sterileor Non-Sterile packaging for customer preference and convenience.
This new generation of Cannulated Screws has been designed to optimise surgicaloutcomes while simplifying procedures. The ASNIS III System offers the surgeon acomplete choice of implants, material and packaging combined with a new user-friendly instrumentation.
This innovative device has been developed for Femoral Neck Fracture and SlippedCapital Femoral Epiphysis treatments. The Hansson Pin System is a simple andprecise instrumentation combined with a unique implant. This unthreaded pinwith a spreading hook allows a strong and stable fixation through a simple andshort procedure, thus preserving the blood supply and the bone integrity.
PIN SYSTEM