Nelson Case III Flashcards
What do we want the A1C to be around for diabetics to do elective surgery?
Less than 8
Can you still use betadine if patient has shellfish allergy?
Yes
Average thigh tourniquet?
300 - 350mmhg
Complication with Type I
More prone to hyper and hypoglycemia
Elevatus is more common in which osteotomies
Closing base wedge
What are other techniques for joint resection?
Osteotome
Saggital Saw/oscillating saw
Curettage
Treatments for stage I hallux limitus
Reverse Mortons Extension
Treatment for Stage III and IV
Mortons Extension
Oloff and Jacobs- Grade I Hallux Limitus
Minimal Adaptive changes
- Pain on end ROM
- Rearfoot pronation
- Metatasus primus elevatus
Oloff and Jacobs- Grade II Hallux Limitus
- flattening of 1st metatarsal head with possible osteochondral defect
- Small dorsal exostosis
- Pain on end ROM
Oloff and Jacobs - Grade III Hallux Limitus
- More severe flattening of 1st metatarsal head
- osteophytes
- Asymmetrical joint narrowing
- Eburnation
- Crepitus
Oloff and Jacobs - Grade IV Hallux Limitus
- Total obliteration of joint space
- Loose bodies
- ## < 10 degrees of motion
What is the difference of structural and functional hallux limitus?
Structural- limits dorsiflexion of first ray when loaded and unloaded
Non-joint destructive Osteotomy
Exostectomy
Proximal Phalanx Osteotomy
1st metatarsal Osteotomy
NJD procedures - Exostectomy - Stage 2 procedure
Cheilectomy
NJD procedures - Proximal phalanx - Kessel Bonney
Dorsal base wedge removal of proximal phalanx
NJD procedures - Proximal phalanx - Regnauld
Mexican hat - peg and hole - shortens the proximal phalanx
NJD procedures - Proximal phalanx - Watermann
Dorsal wedge osteotomy out o the first metatarsal head
NJD procedures - Proximal phalanx - Watermann- Green
Preserves the sesamoid articulation by providing angulated cut with removal of the dorsal half of the metatarsal head
NJD procedures - Proximal phalanx - Youngswick
Austin with two parrallel cuts dorsally to allow for plantarflexion
NJD procedures - Proximal phalanx - Dorsal V
Chevorn cut made dorsal to plantar through metatarsal neck
NJD procedures - Proximal phalanx - Saggital Z
Saggital Z through metatarsal shaft with proximal arm exiting medially and distal arm laterally
NJD procedures - Proximal phalanx - Lambrinudi
Closing plantarflexory base wedge
What is the distraction rate for a arthrodiastasis?
.5mm/day for 1 week ( max 14 days )
What is a keller?
Removal of the base of the proximal phlalanx with a possible chielectomy
- may insert implant if failed
Causes of Hallux Limitus
- OCD
Long First Met - Elevatus
- Hypermobility of 1st ray
Arthrodesis fixation
- 10-15 abduction fixation
- 10 - 20 degrees of dorsiflexion for fixation
With implants, why do you use grommets ?
Helps to decrease shearing forces on the silicon implant