Recent advances in joint replacements.

Latest techniques in Joint replacements in India

Dr.A.K.VenkatachalamFRCS, MCh Orth, MS Orth, DNB Orth

Consultant Orthopedic surgeonwww.kneeindia.com

Contact [email protected]

04/10/23 www.kneeindia.com 1

Advantages of a knee replacement

Patient can walk immediately after surgeryPain is no longer present Regain full range of movementPatients can regain the full range of

activities that they were used to without the accompanying pain

With High flexion knee replacement, they can even squat on the floor.


Knee replacements

Resurgence of partial knee replacement for middle aged patients with partial knee arthritis

Implant design changes- Flexible knee replacement

Minimal invasive surgical techniqueSex or gender special implantsAdvent of newer materials- Ceramic,

Oxinium, better plastic inserts04/10/23 www.kneeindia.com 3

Partial knee replacements

Knee cartilage damage first occurs in inner half of most knees

Called as lesionRest of knee may be

normalHence only a partial

knee replacement is required


Advantages of partial knee replacement

Small incisionLess painNormal tissues like

ligaments, healthy cartilage are spared

Less blood lossEarly mobilizationKnee feels more normalFull movementShorter hospital stay- 1

day discharge


Who can benefit from a partial knee replacement

Middle aged patients with partial knee arthritis confined to one out of three compartments of the knee

Elderly patients with partial knee arthritis

Moderate weight


Flexible knee replacements ( for full bending of knee


Implant design allows complete bending

Ideal for patients who want complete movement

Muslims can offer Namaz in traditional fashion by kneeling


Women’s knee replacement

Women constitute 2/3rds of patients undergoing a knee replacement

Women have different sizes of clothes, shoes

Their bones are also different from men’s bones.


Gender differences between men and women

Women are not smaller versions of menThey are shaped differentlyAlthough Women can wear men’s clothes

and shoes, they prefer to wear specially designed apparel.


Gender specific knee or Women’s knee

Fits the female anatomy more accuratelyProvides high flexion up to 155 degrees.Can be performed by minimally invasive

procedureKnee feels more normal than Non gender

knee


Minimal invasive knee replacements

Small incisions 4- 5 inches

Post operative pain is reduced

Faster recoveryCosmetic appearance


Minimal invasive TKR

Small incision of 4 inches for TKR


Knee replacement for Young patients

Three patients in their twenties and thirties who had Oxinium knee with computer assisted surgery.


Features of Oxinium knee

Made of OxiniumCeramic surface coatingMetal base4900 times harder than standard knee

prosthesisLess frictionDurableNon allergenic to people with Nickel allergy


What is Hip resurfacing?Advantages

The socket and ball are scraped and a metal ball and socket of the same size as the original one are fitted in

This allows a full range of movementRisk of dislocation is lessDurable metal on metal combinationIdeal for young patients with hip arthritis


Short stem hip replacement

Total hip replacement vs Proxima hip


Advantages of Proxima hip

Bone sparingMetal on metal larger diameter headLess risk of dislocationCan be inserted through a minimal

invasive techniqueDurableProvides full range of movement


Newer materials for joint replacement

Metal on metal Metal on PolytheneCeramic on polytheneCeramic on ceramic


Patient specific instruments


Advantages of patient specific instruments with Oxinium knee Accurate implantationLife of implant is prolonged to 30 years. Faster operation time Less chance of infectionPossible to do both knees in one sittingSmaller surgical scars


Patient examples of custom made knee


Dr.A.K.VenkatachalamConsultant Orthopaedic surgeon,Chennai,India

E mail- [email protected]

Visit- www.kneeindia.com

www.hipsurgery.in

www.shoulderindia.com


Recent advances in joint replacements.

Health & Medicine

Transcript of Recent advances in joint replacements.