Decreased postoperative pain
The AMIS approach can reduce your postoperative pain, as muscles are not cut 1.
Hip replacement surgery
Discover the proper procedure for your needs
Hip Pain
Hip replacement surgery
Total hip replacement
Total hip replacement surgery substitutes the damaged bone and cartilage of the joint with metallic, polyethylene (a plastic material) or ceramic components.
A hip prosthesis is an artificial articulation composed of a femoral stem with a head (sphere), a socket cup and an acetabular liner.
- The femoral stem is made of metal (usually a titanium or stainless-steel alloy).
- The head is made of ceramic or metal.
- The cup is usually made of metal (a titanium alloy or stainless steel).
- The liner is made of Highcross polyethylene.
Surgical approaches
AMIS
Current approaches and AMIS
The surgeon can access the hip joint by different paths called “surgical approaches”. Numerous surgical approaches are advertised as minimally invasive, including the posterior, lateral, or double incision approach. However, these are only reduced skin incision techniques and still cause the same muscle and nerve injury as “conventional” approaches.
AMIS: the true minimally invasive surgery
AMIS, Anterior Minimally Invasive Surgery, protects the muscles and nerves around the hip joint and often utilizes a smaller skin incision 5. This approach follows an inter-muscular and inter-nervous path to reduce the risk of injury to your muscles, tendons, vessels, and nerves. It also offers a less significant muscular release than other approaches 8.
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Minimally invasive surgery
Hip replacement technique
Why an AMIS total hip replacement?
The AMIS technique results in less surgical trauma than other techniques because no muscles are cut, allowing you an improved quality of life and the opportunity for a quicker recovery following your total hip replacement. In addition, AMIS may potentially offer:
Significantly shortened rehabilitation
Rehabilitation can usually start the day of the operation or the day after, subject to your doctor’s approval, based on your postoperative condition 3.
Shorter hospitalization
The AMIS technique may significantly reduce your hospital stay 4.
Smaller skin scar
With AMIS, the skin incision is often shorter than with “conventional” surgery 5.
Reduced chance of limping
Minimizing your muscle and nerve damage reduces your
risk of limping 7.
Decreased blood loss
Preserving your muscles and vessels potentially reduces your blood loss 4.
Reduced risk of dislocation
Since the anterior approach is performed at the front of your body, you have a lower risk of dislocation, as dislocation is mainly related to posterior hip structure damage 2,4,6.
Faster return to daily activities
The AMIS technique allows you to return to daily activities
more quickly 6.
What Experts say
Tyler D. Goldberg, MD
“The AMIS procedure completely revolutionized my surgical care for my arthritic hip patient population. Prolonged hospital stays, weight-bearing and position restrictions, and intense narcotic usage are historical remnants of archaic surgical care.
Instead, I offer patients the opportunity to go home on the same surgery day, with no restrictions and no opioid pain medications. I changed my technique, and my patients and I benefited. It’s a powerful win-win!”
Tyler D. Goldberg, MD
Minimally invasive surgery
AMIS Bikini technique: the natural evolution of the AMIS technique
The AMIS Bikini is a true minimally invasive surgical technique that follows the natural direction of your muscles.8
The AMIS Bikini approach retains all the benefits of the AMIS technique but utilizes an incision performed within the skin fold of the “bikini line,” or frontal groin crease. This approach allows for:
- Better aesthetic appearance9,10,11,12 of the hip replacement scar
- Enhanced wound healing environment and lower rate of wound complications.9,10,11,12 This procedure is also indicated for patients with a higher than average BMI.12
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The information contained here is intended for reference only and does not represent or constitute medical advice or a recommendation. Each patient must be examined and advised individually by a physician, and this information does not replace the need for such examination and/or advice in whole or in part. Results are not necessarily typical, indicative, or representative of all patients. Results may vary due to health status, weight, activity, and other variables. Not all patients are candidates for this product and/or procedure. The appropriate postoperative activities and pain management will differ from patient to patient. Talk to your doctor about your condition and about whether the presented procedure is appropriate for you, considering the risks associated. All content is protected by copyright, trademarks and/or other intellectual property rights of Medacta and cannot be used without the written consent of Medacta. In good faith, Medacta asserts that this material does not infringe or misappropriate any intellectual property rights of any third party.
References
2- Vasina PG, Rossi R, Giudice GM, Palumbi P. Hip arthroposthesis through the anterior minimally invasive approach. Sphera 2010;6(12) – Speciale Ortopedia.
3- Dora C. Minimalinvasive Zugänge an der Hüfte. Orthopäedie Mitteilungen 6/07, 574-576.
4- Jayankura M, Roty M, Potaznik A, Rooze M, Cermak K, Remy P, Gillard B, Biltiau N, Schuind F. Isokinetic and isometric muscle strength recovery after total hip arthroplasty implanted by direct anterior approach. Podium presentation at the 10th Annual Congress of the EFORT, Vienna, Austria, June 3-6, 2009.
5- F Rachbauer, Minimally Invasive total hip arthroplasty: anterior approach, Orthopäde, 2006 Jul, 35(7):723-4, 726-9
6- Laude F. Total hip arthroplasty through an anterior Hueter minimally invasive approach. Interact Surg (2006) 1: 5-11.
7- Bremer AK, Kalberer F, Pfirrmann CWA, Dora C. Soft-tissue changes in hip abductor muscles and tendons after total hip replacement: Comparison between the direct anterior approach and the transgluteal approaches approaches. J Bone Joint Surg (Br) 2011–July; 93-B:886-9.
8- Single-Incision Direct Anterior Approach for Total Hip Arthroplasty Using a Standard Operating Table; TP Lowell; The Journal of Arthroplasty Vol. 23 No. 7 Suppl. 1 2008
9- Menzies-Wilson, Richard & Mahalingham, Karuppiah & I, Tamimi & Field, Richard. (2019) “Retrospective cohort study comparing the functional outcomes of direct anterior approach hip arthroplasty. Oblique “bikini” vs longitudinal skin incision.”
10- Menzies-Wilson, Richard & Mahalingham, Karuppiah & I, Tamimi & Field, Richard (2019).”Functional Outcomes of direct anterior approach hip arthroplasty: Oblique ‘bikini’ versus longitudinal skin incision.” 10.1177/2210491719890883.
11- Leunig, Hutmacher, Ricchiardi, Impellizzeri, Rüdiger, Naal (2018). “Skin crease ‘bikini’ incision for the direct anterior approach in total hip arthroplasty: a two- to four-year comparative study in 964 patients.” Bone Joint J.
12- Manrique, MD, Paskey, BS a, Tarabichi, MD, Restrepo, MD, Foltz, PhD Hozack, MD. (2019) “Total Hip Arthroplasty Through the Direct Anterior Approach Using a Bikini Incision Can Be Safely Performed in Obese Patients.” J Arthroplasty