ctev
TRANSCRIPT
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PRESENTER-DR.RAGHAVENDRA RAJUMODERATOR-DR.SAMEER WOOLY
CTEV
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INTRODUCTION
TALUS-ANKLEPES-FOOTEQUINO-LIKE A HORSEVARUS- TURNED INWARDS
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HISTORICAL ASPECTS
- EARLIEST EVIDENCE IN EGYPTIAN PERIOD.- YAJURVEDA ADVISED TO MASSAGE TO
CORRECT DEFORMITY.- HIPPOCRATES FIRST DESCRIBED CLUB FOOT.- SCARPA(1803) FIRST DESCRIBED PATHOLOGIC
ANATOMY.- KITE (1930) DESCRIBED NON OPERATIVE
TREATMENT WITH SEVERAL MANIPULATION AND PLASTER CAST APPLICATION.
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- DENNIS BROWN (1934) DEVISED SPLINT FOR MAINTENANCE OF CLUBFOOT CORRECTION.
- IGNACIO PONSETI (1950) DEVELOPED METHOD CORRECTION.
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DEFINITION
CONGENITAL DYSPLASIA OFMUSCULOSKELETAL TISSUES DISTAL TO
KNEE JOINT IN THE FORM OF DEFORMITY OF
FOOT AND ANKLE.
IT IS A DEVELOPMENTAL DISORDER.
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ETIOLOGY-IDIOPATHIC
1.MECHANICAL FACTORS- HIPPOCRATES Oligohydramnios Abnormal fetal positioning Unstretched uterus Placental insufficiencyConstriction bands.2.PRIMARY GERM PLASM DEFECT3.ARRESTED FOETAL DEVELOPMENT4.HEREDITARY- AD5.MUSCULOLIGAMENTOUS FIBROSIS
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6. VASCULAR HYPOTHESIS- 90% of CTEV limbs showed hypoplasia / absence of anterior tibial artery.
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SECONDARY CLUBFOOT
1.PARALYTIC DISORDERS - evertors and dorsiflexors are weak.
Ex- polio , spina bifida, myelodysplasia, friedrichs ataxia.
2.SYNDROMES -arthogryposis multiplex congenita, downs syndrome, larsen syndrome.
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INCIDENCE- 1 to 2 in 1000 livebirths.SEX – MALE >FEMALELATERALITY- BILATERAL IN MORE THAN 50
% .FAMILY HISTORY- 5-50% POSITIVE.
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COMPONENTS OF CTEV
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BONY CHANGES
Talus: most deformed and least displaced. Head & neck deviated medially & plantarward Body rotated externally in the ankle mortise, superior articular
surface escapes from mortice. Talar neck is short and medially deviated. Smaller than normal, disturbance of vascular supply, ossification
centre eccentrically placed
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Navicular: Medially displaced Close to medial
malleolus Articulates with medial
surface of head of talus
Calcaneus Anterior portion lies
beneath the head of talus causing varus and equinus of heel
In equinus Rotated medially
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Cuboid Displaced medially on
the dysmorphic distal end of the calcaneus
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Tibio-talar plantar flexion
Medially displaced navicular
Adducted and inverted calcaneus
Medially displaced cuboid
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Soft tissue changes
Posterior structures :
Tendo achilles Post. capsule of ankle
joint & subtalar joint Post. talo fibular Calcaneo-fibular
ligaments
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MEDIAL- Tibialis posterior FHL,FDL, Master Knot of
Henry Talonavicular ligament Calcaneo-navicular
ligament Deltoid ligament Interossseus talo calcaneal
ligaments Capsules of naviculo
cuneiform & cuneiform first metatarsal
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Plantar wards : Plantar fascia Plantar ligaments Flexor digitorum brevis & abductor hallucis Laterally Calcaneofibular ligament Bifurcated ligament Calcaneocuboid joint capsule
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EXAMINATION
1.DORSIFLEXION TEST-2. PLUMB LINE TEST-
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CLASSIFICATION
1. IDIOPATHIC AND NON IDIOPATHIC-2. CUMMIN CLASSIFICATION3. a. supple –foot can be brought to normal position. b. rigid - forefoot can be corrected but not the
hind foot by conservative management. c. neglected- not received treatment for one year. d. relapsed- deformity reappear after correction. e.recurrent- type of relapse, due to muscle
imbalance. f. resistant- cannot be corrected by conservative
treatment.
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3. Browne s classification- a. first degree- only forefoot adduction
present. b. second degree- inversion and equinus is
present along adduction.c. Third degree- toes pointing upwards, sole is
in contact with medial surface of tibia. Equinus component is not present.
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Radiology
Plain radiograph: Can be assessed prior to treatment with A-P & Lateral of foot
Foot held in position of best correction, with weight-bearing, or simulated weight-bearing
AP view: Taken with foot in 30° of plantar flexion and tube at 30° from vertical
Lat. View: Transmalleolar with the fibula overlapping the posterior half of the tibia; foot in 30° of plantar flexion
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Anteroposterior view
Talocalcaneal angle
Calcaneal-second metatarsal angle
Talus –first metatarsal angle
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Lines drawn through center of the long axis of talus (parallel to medial border) and through the long axis of calcaneum (parallel to lateral border), and they usually subtend an angle of 25-40°.
Any angle less than 20° considered abnormal
AP radiograph: Talo-Calcaneal angle
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Lateral view Talocalcaneal view Calcaneal-first
metatarsal view Tibiocalcaneal Talus-first metatarsal
angle Talocalcaneal index
(Kite's angles from AP and Lateral views added)
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Pirani’s severity scoring
Six parameters : 3 of midfoot and 3 of hindfoot
Each parameter is given a value as follows:0: normal0.5: moderately abnormal1: severely abnormal
Pirani s et al. A method of evaluating virgin clubfoot with substantial interobserver reliability. Annual meeting of Pediatric orthopaedic society of North America 1995
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Mid foot score
Curved lateral border [A]
Medial crease [B]
Talar head coverage [C]
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Hind foot score
Posterior crease [D]
Rigid equinus [E]
Empty heel [F]
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Uses of Pirani’s score
Assessment of progress by serial plotting of the score
Predicting need for tenotomy
Estimation of probable no. of casts reqd*
Very good interobserver reliability and reproducibility**
* J. Dyer et al Journal of Bone and Joint Surgery - British Volume, Vol 88-B, Issue 8, 1082-1084P.
** Flynn JM, Donohoe M, Mackenzie WG. J Pediatr Orthop 1999;18:323-7
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Classification of clubfoot severity by Diméglio A.Equinus deviation B. Varus deviation C. Derotation D. Adduction.
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Reducibility( degrees)
Score Additional parameters
Score
90-45 4 Marked posterior crease
1
45-20 3 Marked mediotarsal crease
1
20-0 2 Cavus 10 t0 -20 1 Poor muscle
condition1
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Grade Type Score Reducibilityi Benign 1-4 >90%ii Moderate 5-9 >50%, soft-stiff,
reducible, partially resistant
iii Severe 10-14 >50%, stiff-soft, resistant, partially reducible
iv Very severe 15-20 <10% stiff-stiff,resistant
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Aims of treatment
Achieve a plantigrade , pliable, cosmetically accepted foot in shortest possible time and with least disruption of family and child life.
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PRINCIPLES OF TREATMENT
Soft tissue contractures should be stretched out in order to restore normal tarsal relationship.
Once achieved correction should be maintained in till tarsal bones remoulds stable articular surfaces.
TWO OPTIONS –1. NON OPERATIVE- immediately after birth2. OPERATIVE
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KITES METHOD
Correction of each component separately and in order.
Avg time 6 months Fulcrum –
calcaneocuboid joint. Order 1.adduction 2.varus 3.equinus
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Kite method
Believed heel varus would correct simply by everting calcaneus
Did not realize calcaneus can evert only when it is abducted (i.e., laterally rotated) under the talus
Forefoot overcorrected into mild flatfootCalcaneus is rolled out of inversion by placing
plantar surface of a slipper cast on glass plate to flatten the sole
Dorsiflexion of foot with wedging casts
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Outline of Ponseti regimenSerial casting of lower
limb using a strictly defined technique and weekly change of casts
Percutaneous tenotomy of tendo achilles for “hind foot stall”
Once foot corrected, an abduction foot orthosis worn full time for 12 weeks, and then at nights and naps, up to age of four.
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Reasons for poor results in kites method1. FULCRUM- prevents abduction of
calcaneum and thereby eversion of calcaneum.
2. Pronation of forefoot worsens cavus.
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Manipulation and cast application
1.Manipulation Manipulation: start as soon after
birth as possible
Setup for casting includes calming the child with a bottle or breast feeding
Assistant holds the foot while the manipulator performs the correction
.
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Order- cavus adduction varus equinus
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2. Correction of cavus Cavus results from
pronation of the forefoot in relation to hindfoot “ THE PRONATION TWIST “
Attempting to correct the supination of hindfoot before correction of varus results in an iatrogenic increase in cavus
Corrected by supinating the forefoot to place it in proper alignment with the hindfoot.
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Cast application Manipulation Padding
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Plaster at toes Below knee pop
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Molding Extension upto the thigh
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Plantar support to toes Final appearance
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Casts and foot Adequate abductionBest sign of sufficient
abduction: ability to palpate the anterior process of the calcaneus as it abducts out from beneath talus
Abduction of approx.70 degrees in relationship to the frontal plane of the tibia possible
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Complications of casting
Tight castRocker bottom deformityCrowded toesFlat heel padSuperficial soresDeep soresPressure soresInjury to distal tibial physis
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Common errors(Kite errors)
No manipulationPronation/eversion
of 1st metatarsalPremature
dorsiflexion of heelCounterpressure at
calcaneocuboid jointBelow knee castsShort splints
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Rocker bottom deformity
Dorsiflexion via midfoot before correction of hindfoot varus
Dorsal dislocation of navicular on talus
Fixed equinus of calcaneus
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Correction of equinus and tenotomy
No direct attempt at equinus correction is made until heel varus is corrected
Equinus deformity gradually improves with correction of adductus and varus- calcaneus dorsiflexes as it abducts under talus
Residual equinus- manipulation and casting +/- percutaneous tenotomy
Tenotomy : Indicated to correct equinus when cavus, adductus, and varus fully corrected but ankle dorsiflexion remains less than 10 degrees above neutral
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Percutaneous tenotomy under LA
Foot held in max dorsiflexion by an assistant.
Tenotomy done 1.5 cm above calcaneal insertion Additional 25-30 deg dorsiflexion obtained.
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Cast with the foot abducted 60 to 70 degrees with respect to the frontal plane of the ankle, and 15 degrees dorsiflexion for 3 weeks
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Foot Abduction braces
Shoes mounted to bar in position of 70° of ER and 15° of dorsiflexion in B/L cases and incase of U/L cases 30 to 40° of ER in normal side, distance between shoes set at about 1˝ wider than width of shoulders
Knees left free, so the child can kick them “straight” to stretch gastrosoleus tendon
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Bracing protocol
Worn 24 hours each day for first 3 months. For 12 hours at night and 2 to 4 hours in middle of
day for a total of 14 to 16 hours during each 24-hour period.
Continued until the child is 3 to 4 years of age.
Noncompliance with bracing protocol – the most common cause of recurrence in children on Ponseti regimen
.
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Mitchell brace Dobbs dynamic brace
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Dennis brown Romanus
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CTEV Splint
Straight inner border to prevent forefoot adduction
Outer shoe raise to prevent fooot inversion
No heel to prevent equinus Slight(1/8”) lateral sole
raise Inner iron bar Outer t trap Walking age to 5 yrs of age
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The French method
Bensahel/Dimeglio regime Daily manipulations by a skilled physiotherapist
and temporary immobilisation with elastic and non-elastic adhesive taping .
GOAL- reduce talonavicular joint, stretch out medial tissues, correct deformities squentially.
Mobilisation during the hours of sleep with CPM machine.
Successful in 51% of cases ( of which 9% req TA tenotomy) ; 49% Reqd extensive soft tissue release -29% post release and 20% comprehensive posteromedial release**.
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Follow up protocol
2 weeks: to troubleshoot compliance issues
3 months: to graduate to the nights and naps protocol
Every 4 months: until age 3 years to monitor compliance and check for relapses
Every 6 months: until age 4 years.
Every 1 to 2 years: until skeletal maturity
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RESULTS OF NON OPERATIVE TREATMENT
OVERALL – 19% TO 95%.KITES METHD- 80%.PONSETI – 95%
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Surgery in clubfootINDICATIONS
Resistant clubfoot( non-responsive to serial casting and manipulation)
Persistently deformed clubfoot(non-operative correction inadequately done with/without compliant bracing)
Relapsed clubfoot( initially satisfactorily corrected that recurs in part or whole)
Neglected clubfoot( no treatment given till age of 2 yrs)
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General Principles
Goal: address all pathoantomic structures.
Type of surgery depend on age and deformity.
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ApproachesTurco (postero medial
incision)Cincinnati (postero medial
and postero lateral )
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Caroll’s two incision techniqueMedial incision - straight oblique incision from first metatarsal, across medial malleolus to Achilles tendon
Straight lateral incision along the lateral subtalar joint antr to distal fibula
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AGE 9- 12 MONTHS
RELEASING OF MEDIAL, PLANTAR,
AND POSTERIOR ASPECTS
OF FOOT.
TURCOS ONE STAGE RELEASE
IDENTIFY AND MOBILISE-1.TIBIALIS
POSTERIOR2.FDL3.FHL4.NV BUNDLE5.ACHILLES
TENDON
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Medial tibial navicular ligament, dorsal talonavicular ligamnet, and plantar calcaneonavicular ligament cut
Capsule of T-N cut all the way around
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Bifurcated ligament cut Complete release of
talocalcaneal joint ligaments except interosseous ligaments
Detach origin of quadratus plantae muscle from calcaneus
Roll talus back into ankle koint, if not incise post. talofibular ligament, post. Portion of deep deltoid ligament
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Line up medial side of head and neck of talus with medial side of cuneiforms, medially push calcaneus post. to ankle joint
K wire through talonavicular ,talocalcaneal joints
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Check for proper position of foot
Longitudinal plane of foot 85-90° to bimalleolar ankle plane, heel under tibia in slight valgus
Suture all tendons with foot in 20° dorsiflexion
Wound closure
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Follow up : Wound inspection done under sedation at 1 week Foot held in neutral, plantigrade position and cast
applied – above knee Cast kept for 4 – 6 weeks Cast removed along with any K wires, if applied
during surgery for stabilisation AFO given for 6 months
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Residual deformities
Residual hindfoot equinus : Achilles tendon lengthening and posterior capsulotomy of ankle and subtalar joints
Dynamic metatarsus adductus : Transfer of anterior tibial tendon, either as split transfer or entire tendon
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Resistant clubfoot
Metatarsus adductus : >5 yrs metatarsal osteototomy Hindfoor varus : <2-3 yrs modified Mckay procedure 3- 10 yrs Dwyer osteotomy ( isolated heel varus) Dilwyn Evans procedure (short medial
column) Lichtblau procedure( long lateral column) 10-12 yrs triple arthrodesis Equinus : Achilles tendon lengthening and posterior
capsulotomy of subtalar joint, ankle joint / Lambrinudi procedure
All three deformities >10 yrs triple arthrodesis
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TENDON TRANSFERS
INDICATION –PASSIVELY CORRECTABLE FOOT RESULTING FROM MUSCLE IMBALANCE.
NEVER A PRIMARY PROCEDURETHREE TYPES-1.TIBIALIS ANTERIOR2.TIBIALIS POSTERIOR3.SPLIT ANTERIOR TIBIALIS TENDON
TRANSFER
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AGE 3- 6 YEARS
Weakness of muscle(peroneus).Garceaus- middleCuneiform.Mod gerceaus- 5 thmetatarsl base.
TIBIALIS ANTERIOR TRANSFER
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SPLATT
Indicated for dynamic foot deformity.
Lateral part on to cuboid
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TIBIALIS POSTERIOR TRANSFER
AGE- 8 YEARS.PRINCIPLE- eliminate the deforming force of
tibialis posterior and use it corrective force when
there is toe in gait, cavus ,weak peroneals, forefoot
equinus.Through interroseous membrane to lateral
cuneiform.
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Bony proceduresDwyer calcaneal
osteotomyAge 3-4 years
IND- persistent varus deformity. Opening wedge medialosteotomy to increase thelength and height of
calcaneus Osteotomy held open by
a wedge of bone taken from tibia with k wire.
Cast for 3 months.
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Litchblau procedure
IND – hind foot includes varus and residual internal deformity of calcaneum with long lateral column.
AGE – min 3 years.Lateral closing wedge
osteotomy of calcaneus along with medial soft tissue release .
• Shortens the lateral column.
• Complication- skew foot.
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Dilwyn Evans Osteotomy
Posteromedial releaseCalcaneocuboid
wedge resection and arthrodesis of the joint
Shortens lateral column
Stiffness at subtalar and midfoot joints
Preferred in older children (4-8 yrs)
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Dilwyn Evans Osteotomy
PRINCIPLE- basic deformity is at mid tarsal joint and all other deformities are adaptive.
Age – 4 years- 8 years. Staged procedure.Lateral foot shortened by closed wedge
osteotomy.Medial soft tissue release and closed
tenotomy of plantar fascia.Posterior capsulotomy and soft tissue release.Calcaneo – cuboid fusion.
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Salvage procedures
Triple arthrodesisSalvage procedure for painful stiff foot.Correction of large degrees of deformity in
neglected clubfeet.Not performed before advanced skeletal
maturity, at age 10 to 12 years.3 Joints fused 1. subtalar joint. 2. talonavicular joint. 3. calcaneo cuboid joint.
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Talectomy
Originally done for syndromic clubfoot.
Now done for severe untreated club foot.
Age – 6years. Complete excision of
talus . Derotate foot and
displace calcaneum into ankle mortise untill navicular abuts anterior edge of tibial plafond.
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Complications- limb length discrepancy. limitation of ankle
movements.
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Ilizarov
Correction slow enough to protect soft tissue
Correction at the focus of deformity
Simultaneous three-dimensional, multilevel correction
Deformity correction without shortening the foot
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JOSHI EXTERNAL STABILISATION SYSTEM
DR.B.B. JOSHI, MUMBAI.
Principle –tension stress applied in physiological doses by mechanical device have shown to stimulate histiogenesis.
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JOSHI EXTERNAL STABILISATION SYSTEM
DR.B.B. JOSHI, MUMBAI
2 to 4 transfixing wires in prox tibia
Metatarsal Transfixing wire
through I &V MT; Medial half
pin through I, II, III MT; Lat half pin thro’ IV, V MT
2 transfixing and 1 axial wire through calcaneum
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JESS
Distraction used to Sequentially correct deformities (Medial- 0.25 mm every 6 hours ,Lateral- 0.25 mm every 12 hours).
Distraction continued until approximately 20 degrees of dorsiflexion and overcorrection of the forefoot deformities was achieved .
Maintained in this overcorrected position for twice as long as the distraction phase by casts/braces.
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ADVANTAGES OF JESS
1. Causes lengthening of all contracted tissues and prevent further scarring by surgery.
2. Magnitude of correction can be controlled by distraction.
3. Resultant foot are supple in contrast to foot in surgery.
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Results with JESS
Good or excellent results reported by Joshi in 84% of his patients
Recommended in all who have not responded to serial plaster casting methods.
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Complications of surgery
Neurovascular injury Loss of foot (10% have atrophic dorsalis pedis artery bundle) Skin dehiscence Wound infection AVN talus Dislocation of the navicular Flattening and breaking of the talar head Undercorrection/ Overcorrection. Forefoot adductus Hindfoot varus Severe scarring Stiff joints Weakness of the plantar flexors of the ankle
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Conclusion
Proper understanding of the patho-anatomy a must
Ponseti method is now the standard treatment method
Indications of surgery limited but well defined
Turco’s posteromedial soft tissue release remains the treatment of choice in most cases amenable to surgical treatment
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THANK YOU
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HAPPY BIRTHDAYMANJUNATH