Amputations

Above-Knee, Below-Knee, Transmetatarsal

A precise surgical procedure to remove a limb or portion of a limb, preserving maximum function while eliminating diseased or damaged tissue through specialized techniques tailored to each level of amputation to optimize healing, rehabilitation, and future prosthetic use.

An amputation is a specialized surgical procedure that involves the removal of a limb or portion of a limb that is damaged, diseased, or non-functional. At our practice, we understand that facing an amputation is a profoundly life-changing event with significant physical and emotional implications. That's why we're committed to providing compassionate, expert care while helping you understand each step of your treatment and rehabilitation journey. This procedure becomes necessary when preserving a limb is no longer possible due to severe trauma, advanced infection, vascular disease, or malignancy, and the goal is to create a functional residual limb that optimizes mobility, minimizes pain, and allows for effective prosthetic use when appropriate.

At Lifetime Surgical, our approach to amputations utilizes advanced surgical techniques tailored to the specific level required:

Above-Knee Amputation (AKA/Transfemoral): Involves removal of the leg above the knee joint, preserving as much of the femur as possible to allow for better prosthetic fitting and control.

Below-Knee Amputation (BKA/Transtibial): Removes the foot and part of the lower leg while preserving the knee joint, offering significant functional advantages including more natural gait, less energy expenditure during walking, and easier prosthetic use.

Transmetatarsal Amputation (TMA): A partial foot amputation that removes the toes and part of the forefoot while preserving the hindfoot and ankle, allowing for walking without necessarily requiring a prosthesis.

Our comprehensive approach includes meticulous surgical technique, expert pain management, emotional support, and coordination with rehabilitation specialists to optimize your recovery and long-term function following amputation.

Indications & Symptoms

You may need an amputation if you experience:

  • Severe trauma with irreparable damage to a limb

  • Critical limb ischemia with non-salvageable tissue due to peripheral vascular disease

  • Diabetic foot ulcers that have progressed to gangrene or severe infection

  • Life-threatening infection (gas gangrene, necrotizing fasciitis) not responsive to antibiotics

  • Failed revascularization procedures in a severely compromised limb

  • Malignant tumor (bone or soft tissue) requiring removal

  • Severe, chronic infection (osteomyelitis) unresponsive to treatment

  • Congenital limb deformities causing significant functional impairment

  • Irreversible cold injury (severe frostbite)

  • Non-healing wounds despite optimal care

  • Severe, chronic pain in a non-functional limb

  • Failed previous limb salvage procedures

  • Massive crush injury with non-viable tissue

  • Severe, irreparable nerve damage causing a non-functional limb

  • Life-threatening conditions requiring limb sacrifice to save life (e.g., severe sepsis)

Symptoms indicating a potential need for amputation:

  • Persistent severe pain not controlled with medication

  • Complete loss of sensation in the affected limb

  • Absence of pulse in the affected limb

  • Cold, pale, or blue skin

  • Visible gangrene or tissue death

  • Progressive infection despite antibiotics

  • Uncontrollable bleeding from damaged blood vessels

  • Severe deformity preventing functional use

  • Overwhelming sepsis originating from the affected limb

Treatment Approach

Our approach to amputation combines precise surgical technique with comprehensive perioperative care. The procedure begins with a thorough evaluation to determine the optimal level of amputation that balances the removal of diseased tissue with preservation of function. What sets us apart is our multidisciplinary approach involving vascular surgeons, orthopedic specialists, rehabilitation experts, prosthetists, and mental health professionals who collaborate to create an individualized treatment plan.

For Above-Knee Amputation (AKA): The procedure involves careful dissection at the determined level of the femur, typically preserving as much healthy femur as possible while ensuring adequate soft tissue coverage. We meticulously identify and individually ligate major blood vessels while carefully managing nerves to minimize postoperative neuroma formation. The femur is transected with precision and contoured to create a smooth, rounded end that will interface comfortably with a prosthesis. Meticulous myodesis or myoplasty techniques are employed to stabilize the residual muscles to the femur, creating a strong, functional residual limb that facilitates prosthetic use.

For Below-Knee Amputation (BKA): This procedure preserves the knee joint, offering significant functional advantages. We carefully fashion posterior muscle flaps that provide excellent soft tissue coverage over the tibia, which is transected with meticulous attention to creating a properly contoured end. The fibula is typically cut slightly shorter than the tibia to prevent painful pressure points. Special attention is paid to nerve handling and myofascial closure techniques that create an ideal weight-bearing surface for prosthetic fitting.

For Transmetatarsal Amputation (TMA): This procedure preserves the hindfoot and ankle function while removing non-viable forefoot structures. We create carefully balanced dorsal and plantar flaps to ensure proper coverage of the metatarsal ends, which are contoured to minimize pressure points. Special attention is paid to biomechanical balance to prevent future deformities that could lead to ulceration or the need for higher-level amputation.

For all amputation levels, our distinctive approach includes:

  • Comprehensive preoperative vascular assessment to determine optimal amputation level

  • Advanced pain management protocols, including preemptive analgesia and regional nerve blocks

  • Meticulous surgical technique focused on creating optimal residual limbs for prosthetic fitting

  • Early involvement of physical therapy and rehabilitation specialists

  • Psychological support throughout the perioperative period

  • Seamless coordination with prosthetists for timely fitting when appropriate

This multidisciplinary approach ensures not only successful surgical outcomes but also supports your entire journey through rehabilitation and adaptation to life after amputation.

Recovery Guidance

Immediate Post-Procedure (1-7 days)

  • All Amputation Levels:

    • Expect to remain hospitalized for 3-7 days depending on the level of amputation and overall health

    • Receive comprehensive pain management, potentially including regional nerve blocks and medication

    • Experience some pain, swelling, and drainage at the surgical site

    • Begin early mobilization with physical therapy, often starting the day after surgery

    • Learn proper positioning of the residual limb to prevent contractures

    • Understand proper wound care and dressing management

    • Begin learning transfer techniques (bed to chair)

    • Experience phantom limb sensations (feeling that the amputated limb is still present)

    • Receive emotional support and counseling as needed

    • Begin work with occupational therapy for activities of daily living

    • Learn proper residual limb positioning to prevent contractures

  • For Above-Knee Amputation:

    • Start gentle exercises to prevent hip flexion contractures

    • Learn proper positioning with no pillows under the residual limb

    • Begin early mobility with assistive devices (walker or crutches)

    • Begin gentle strengthening of hip muscles

  • For Below-Knee Amputation:

    • Special attention to preventing knee flexion contracture

    • May be fitted with a rigid post-operative dressing or removable rigid dressing

    • Begin knee extension exercises

  • For Transmetatarsal Amputation:

    • Special attention to preventing equinus deformity (foot pointing downward)

    • May be fitted with a specialized post-operative shoe

    • Begin gentle ankle range of motion exercises as directed

Short-Term Recovery (1-6 weeks)

  • All Amputation Levels:

    • Attend follow-up appointments for wound checks and suture removal

    • Continue prescribed pain management regimen

    • Begin more intensive physical therapy program

    • Learn residual limb care, including washing, inspecting, and moisturizing

    • Begin residual limb wrapping or shrinker application to reduce edema and shape the limb

    • Monitor for signs of infection, delayed healing, or wound complications

    • Continue psychological support as needed

    • Progress mobility training with appropriate assistive devices

    • Begin preparation for prosthetic fitting when appropriate

    • Establish a regular exercise program to maintain strength and flexibility

  • For Above-Knee Amputation:

    • Focus on hip extension, abduction, and adduction exercises

    • Learn to prevent and manage phantom limb pain

    • Typically begin prosthetic evaluation at 4-6 weeks if healing well

    • Practice advanced transfer techniques

  • For Below-Knee Amputation:

    • Focus on knee extension and strengthening exercises

    • May begin early prosthetic fitting with temporary prosthesis (3-8 weeks)

    • Learn proper residual limb wrapping techniques to prepare for prosthesis

  • For Transmetatarsal Amputation:

    • May begin weight-bearing with special shoes within 2-3 weeks if healing properly

    • Focus on ankle mobility and strength exercises

    • Learn proper foot care and inspection techniques

    • May be fitted with custom orthotic devices

Long-Term Recovery (6 weeks - 6 months)

  • All Amputation Levels:

    • Continue with rehabilitation program, gradually increasing the intensity

    • For prosthetic users, begin gait training with the prosthesis

    • Adjust to volume changes in the residual limb

    • Learn proper prosthetic care and maintenance

    • Gradually increase activity levels and endurance

    • Continue psychological adjustment and support

    • Begin integration of prosthesis into daily activities

    • Participate in progressive strengthening exercises

    • Learn to monitor for skin issues and address them early

    • May begin driving with adaptations if appropriate

    • Consider participation in support groups

    • Follow-up appointments become less frequent if healing well

  • For Above-Knee Amputation:

    • Learn advanced prosthetic gait training techniques

    • Practice walking on varied surfaces and stairs

    • Higher energy expenditure with walking requires focused endurance training

    • May require a longer rehabilitation period than more distal amputations

  • For Below-Knee Amputation:

    • Progress to definitive prosthesis typically within 3-6 months

    • Develop a more natural gait pattern with prosthesis

    • Practice advanced mobility skills including uneven terrain

    • May return to many pre-amputation activities with appropriate prosthesis

  • For Transmetatarsal Amputation:

    • Progress to definitive footwear with custom orthotics

    • Focus on balance and proprioception training

    • Learn strategies to prevent skin breakdown

    • May achieve near-normal gait pattern

Long-Term Expectations

  • All Amputation Levels:

    • Continued maturation of the residual limb over 12-18 months

    • Periodic prosthetic adjustments or replacements as needed

    • Lifelong attention to skin care and inspection

    • Regular follow-up with healthcare team, typically annually once stable

    • Potential for high level of function and independence

    • Ability to participate in adaptive sports and recreation

    • Ongoing vigilance regarding the contralateral limb for those with vascular disease

    • Management of phantom limb sensations, which may persist but typically diminish

    • Potential need for prosthetic upgrades as technology improves

    • Progressive return to desired activities and life roles

    • Adaptation strategies for varying environmental conditions

  • For Above-Knee Amputation:

    • Higher energy expenditure for walking (approximately 65% increase)

    • May achieve community ambulation with appropriate prosthesis and training

    • May benefit from advanced prosthetic components (microprocessor knees, etc.)

  • For Below-Knee Amputation:

    • More efficient gait pattern than AKA (approximately 25% increased energy expenditure)

    • Excellent functional outcomes with proper prosthetic fitting

    • Many return to previous occupations and recreational activities

    • Better balance and stability than higher-level amputations

  • For Transmetatarsal Amputation:

    • Most achieve household and community ambulation without a prosthesis

    • Special footwear typically required long-term

    • Monitoring for pressure points to prevent skin breakdown

    • May require minimal adaptations for many activities

    • Generally good long-term functional outcomes with proper foot care

Potential Risks

Common Side Effects

  • All Amputation Levels:

    • Pain at the surgical site during healing

    • Phantom limb sensations (non-painful awareness of the missing limb)

    • Phantom limb pain (painful sensations in the missing limb)

    • Temporary swelling of the residual limb

    • Bruising around the surgical site

    • Mild drainage during initial healing

    • Residual limb volume changes over time

    • Skin sensitivity around the incision

    • Muscle atrophy in the residual limb

    • Temporary dependency on assistance for mobility

    • Emotional adjustment reactions

    • Mild scarring at the incision site

  • For Higher-Level Amputations (AKA/BKA):

    • Greater initial mobility challenges

    • Longer adjustment period to prosthetic use

    • Higher energy expenditure during walking

    • Increased risk of joint contractures without proper positioning

Less Common Complications

  • All Amputation Levels:

    • Wound infection (5-15%)

    • Delayed wound healing

    • Wound dehiscence (opening of the surgical site)

    • Hematoma formation requiring drainage

    • Development of painful neuromas

    • Joint contractures (preventable with proper therapy)

    • Bone spur formation

    • Skin irritation or breakdown at the residual limb

    • Phantom limb pain that becomes chronic and difficult to manage

    • Prosthetic fitting challenges

    • Development of bony prominences causing pain

    • Psychological adjustment difficulties

    • Residual limb pain distinct from phantom pain

    • Heterotopic ossification (abnormal bone formation)

    • For vascular patients, progression of disease in the remaining limb

More Serious Complications

  • Post-operative hemorrhage requiring surgical intervention

  • Deep wound infection potentially requiring revision surgery

  • Need for revision to a higher amputation level (5-15%)

  • Deep vein thrombosis (blood clot) or pulmonary embolism

  • Persistent pain syndromes resistant to treatment

  • Prosthetic-related skin breakdown

  • Joint contractures limiting prosthetic use

  • Significant psychological adjustment difficulties or depression

  • Phantom limb pain that significantly impacts quality of life

  • Wound healing failure requiring surgical revision

  • Complex regional pain syndrome

  • Muscle imbalance leading to residual limb deformity

  • Arterial insufficiency in the residual limb

  • For diabetes-related amputations, progression requiring higher-level amputation

When to Seek Immediate Medical Attention

  • Excessive bleeding from the surgical site

  • Sudden increase in pain, swelling, redness, or warmth in the residual limb

  • Fever over 101°F (38.3°C)

  • Foul-smelling drainage from the incision

  • Opening of the surgical wound

  • Unusual or severe pain not controlled by prescribed medication

  • Calf pain, swelling, or tenderness in the remaining leg (potential blood clot)

  • Chest pain or sudden shortness of breath

  • New numbness or tingling in the residual limb

  • Any drainage or opening along the suture line

  • Significant change in color or temperature of the residual limb

  • Fall onto the residual limb or trauma to the surgical site

  • Sudden inability to bend or straighten a joint that was previously mobile

  • Signs of skin breakdown where the prosthesis contacts the skin

  • Prosthesis no longer fitting properly causing pain or skin issues

What to Expect When You Choose Us

From your first consultation through your complete recovery, we provide:

  • Thorough evaluation and explanation of your condition

  • Clear discussion of all treatment options, including non-surgical alternatives when appropriate

  • Detailed pre-operative instructions to help you prepare

  • Compassionate care during your hospital stay or outpatient procedure

  • Comprehensive follow-up care and support during recovery

  • Ongoing availability to address questions or concerns

We understand that facing head and neck surgery can be intimidating, but you don't have to navigate this journey alone. Our team is committed to providing expert care with a personal touch, ensuring you feel supported, informed, and confident every step of the way.

Your health and wellbeing are our highest priorities, and we're honored to be part of your care team.

Why Choose Laparoscopic Surgery?

All our laparoscopic procedures are performed by our highly trained surgical team using state-of-the-art equipment and techniques.

We're committed to providing you with the most advanced, minimally invasive options because we believe you deserve:

  • Less pain after surgery

  • Shorter hospital stays

  • Faster return to work and activities you enjoy

  • Smaller, less visible scars

  • Lower risk of complications

  • Better overall outcomes

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About

Dr. Richard Nguyen

Dr. Richard Nguyen is a board-certified General Surgeon with over 20 years of surgical expertise and fellowship training in Minimally Invasive and Bariatric Surgery from Vanderbilt University. Since establishing his practice in San Jose in 2007, he has pioneered innovative surgical techniques, including single-incision laparoscopic procedures and mastery of the da Vinci Robotic Surgical System. Beyond his acclaimed bariatric surgery practice, he has earned national recognition for his specialized expertise in both non-mesh and advanced mesh hernia repairs, while also serving as a critical approach surgeon for anterior spine access procedures. Dr. Nguyen combines technical precision with personalized care across multiple premier facilities throughout the South Bay Area.

We are affiliated with the following Hospitals/Surgical Centers:

Good Samaritan Hospital, San Jose, CA Los Gatos Community Hospital-El Camino, Los Gatos, CA Silicon Valley Surgery Center, Los Gatos Fremont Surgery Center, Fremont
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Real Clients, Real Results

Hear directly from patients whose lives have been transformed through Dr. Nguyen's surgical expertise and compassionate care. Their success stories inspire our work every day.
Crystal S. smiling one year after gastric sleeve surgery
Crystal S.

I would refer Doctor Nguyen to anyone, in fact I have and they have all had the same experience as me. He is truly great. I owe all my success to Doctor Nguyen and I thank him for all the work he has done for me and continues to do so. He is extremely amazing, and I am very grateful to him.

Lisa Q. standing outdoors following 100‑lb weight loss
Lisa Q.

At 50, I now have a life I had only dreamed of a year before. My body tells me if I am done eating. This surgery is a tool that I have used to the fullest. It is not an easy way out. It still took work. But I honestly know that I would not be living this amazing new life if I didn’t step forward to embrace this life-saving surgery.

Rickie W. celebrating diabetes remission post‑bypass
Rickie W.

Dr. Nguyen has changed my life completely. I feel so much better and I also feel like I’ve got control of my life again…I had high blood pressure, diabetes and cholesterol. I took at least 5 different medications for the past 30 years. NOW, after surgery I take no medications only vitamins!

Your Next Step

Wondering which surgical procedure might be right for your condition? We're here to help you understand your treatment options and develop a personalized surgical plan. Contact our office today to schedule a consultation.

Your path to improved health may be more achievable than you think—with advanced surgical techniques leading to faster recovery, reduced complications, and a significantly enhanced quality of life.

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