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Published byLetitia McDonald Modified over 9 years ago
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Mr Lee Van Rensburg October 2015
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J Shoulder Elbow Surg (2012) 21, 1006-1012 Flexion extension axis Centre capitellum to anteroinferior medial epicondyle
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JSES 1996;5:103-12 Kinematic study Did not separate LCL from LUCL Found LCL important ulnohumeral stabilizer LCL stabilizes radial head Varus External rotation Ulno humeral stability independent of forearm rotation
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J Shoulder Elbow Surg 2002;11:53-9.) Concept ‘Y’ to LCL complex Previous studies Instability release superior band No instability if release posterior band Varus External rotation
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J Shoulder Elbow Surg 2002;11:53-9.) Release of anterior band increased laxity Varus External rotation Varus External rotation
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J Shoulder Elbow Surg 2002;11:53-9.) Released anterior band Laxity Then release posterior band Instability If release anterior capsule and anterior band effectively leave a LUCL, still tethers ulna Varus External rotation
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Important where LCL complex injured 1. Humeral epicondylar bony avulsion – 8% Paediatric 2. LCL Sleeve avulsion, bare epicondyle – 52% 3. Mid substance tear – 29% 4. Soft tissue ulnar avulsion – 5% 5. Bony ulnar avulsion – 1% 6. Combined – 6% J Shoulder Elbow Surg 2003;12:391-6
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Common extensor origin Completely avulsed 66% Bare epicondyle Dislocations worse than fracture dislocations Look at degree of displacement J Shoulder Elbow Surg 2003;12:391-6
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Approach dictated by injury Beware superficial fascia may be intact Incise superficial fascia ‘Bomb’ gone off Avulsion of CEO and LCL
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Mass repair suture anchors 5.5 twin fix, 2 fibrewire Axis of rotation middle of capitellum Early movement Ensure sound repair
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If LCL Shredded midsubstance Internal brace Anchor into middle capitellum Anchor supinator crest tie one set of sutures of fibrewire to each other Internal brace medial side ?
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J Bone Joint Surg Am, 2000 May 01;82(5):724-724 Kocher interval Split -- Anconeus - ECU Elevate anconeus on ulna to expose supinator crest and lateral face of proximal ulna Palpate tubercle of supinator ridge Expose supracondylar ridge 2 cm anterior and posterior
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J Bone Joint Surg Am, 2000 May 01;82(5):724-724 2 drill holes in ulna 1 st near tubercle on the supinator crest 2 nd - 1.25 cm at base of annular ligament Pass suture through two points and offer up to lateral epicondyle – isometric point Usually more anterior than think Remember needs to be tight in extension (PLRI in ext)
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J Bone Joint Surg Am, 2000 May 01;82(5):724-724 Drill entry hole in lateral epicondyle, widen for graft Connect 2 exit holes ant and post supracondylar ridge Auto/ allo graft Palmaris Plantaris Hamstring 15-16 cm gives 3 ply graft
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J Bone Joint Surg Am, 2000 May 01;82(5):724-724 Humeral fixation Several options One or both limbs of graft into isometric point Stich two limbs together and pull with ‘Yoke’ stitch through tunnel anterior to supracondylar ridge Free end of the graft just reaches the tunnel – 2 ply to, pass free end back through tunnels into ulna again or suture back onto itself for 3 ply Tension 40 degrees flexion and full pronation
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J Bone Joint Surg [Br] 2005;87-B:54-61. 2000
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J Shoulder Elbow Surg 2002;11:60-4 No significant difference 2 strand 1 strand Proximal 1 strand Distal
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