ACL Reconstruction Hamstring Tendon
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Commonly known as the ACL, the Anterior Cruciate Ligament is a major player when it comes to overall stability of the knee. It is structured like a rope and it is located around the center area of the knee. It runs from the femur to the tibia. When this ligament is torn, it doesnâ€™t heal easily, and that make the entire knee vulnerable and unstable. ACL reconstruction is a common procedure thanks to the advances in arthroscopic surgical procedures. The incisions are small and the results are favorable.
The ACL plays a huge role for the range of motion and stability with the knee. It allows the tibia and femur to work together. When there is abnormal movement, it can cause instability and pain. A patient with this type of problem is going to feel something is wrong. If the issue isnâ€™t resolved, it can cause further damage to the body. The Meniscus is a type of cartilage that is in the joint and it will need to be addressed if there is damage to this area as well.
If you think you may have an ACL injury, it is important to seek medical care for it right away. Many of these injuries happen during contact sports. However, it can also happen when a person changes direction fast such as to get away from a tackle. How a person lands during sports can also cause such an injury to occur.
Most people experience a loud popping sound, but that isnâ€™t always the case. Within hours, there is going to be plenty of pain and swelling around the knee. The knee may feel like it is out of place, out of the socket. Very few people are able to resume normal activities or play sports with this type of ACL injury, they must give it time to heal. To recap:
- Most injuries are sports related involving a twisting injury to the knee
- It can occurs with a sudden change of direction, a direct blow e.g., a tackle, landing awkwardly
- Often there is a popping sound when the ligament ruptures
- Swelling usually occurs within hours
- There is often the feeling of the knee popping out of joint
- It is rare to be able to continue playing sport with the initial injury
Once the initial injury settles down the main symptom is instability or giving away of the knee. This usually occurs with running activities but can occur on simple walking or other activities of daily living.
When you go to see the doctor, they will need to confirm there is an ACL injury. They will ask about your medial history and what happened when you started to experience the problems. They will examine the knee to see what it looks like and to assess the swelling. They will ask you what your level of pain is.
Typically, a patient will be referred for an MRI. This allows the knee to be looked at closely for any signs of damage. Both the ACL and the Meniscus should be carefully reviewed with the results. If a clear MRI canâ€™t be conducted, the patient may need to go under anesthesia for an arthroscopy to be conducted.
Get off your feet as soon as you can if you suspect an ACL injury. You donâ€™t want to do more damage to it. Rest your knee in an elevated position. Applying ice will help to reduce pain and swelling. Your doctor may recommend a bandage or a brace for a period of time to help the ACL heal and to reduce instability of the knee. You may be given exercises to complete at home and asked to go to physical therapy. You may be asked to avoid sports that can injury it again.Â
Not everyone needs surgery. Some people can compensate for the injured ligament with strengthening exercises or a brace.
It is strongly advised to give up sports involving twisting activities, if you have an ACL injury.
- Episodes of instability can cause further damage to important structures within the knee that may result in early arthritis
Young patients wishing to maintain an active lifestyle.
Sports involving twisting activities e.g., Soccer, netball, football Giving way with activities of daily living.
People with dangerous occupations e.g., Policemen, firemen, roofers, scaffoulders.
It is advisable to have physiotherapy prior to surgery to regain motion and strengthen the muscles as much as possible.
Due to the advances in medical technology, ACL reconstruction surgery has a very good chance of being successful. Very few patients have any type of complications with the procedure. The arthroscopic procedure involves the ligament being removed and then holes are drilled into the bone so a new graft can be put in place. This graft is going to be taken from the patella or hamstring tendon. The surgeon will tell you which location the recommend for you and why.
The graft allows the new tendon to be attached to the bone. It usually takes about six months for it to be completely healed. If there was other damage such as a Meniscal tear, it will be addressed at the same time.
The rest of the knee can be clearly visualized at the same time and any other damage is dealt with e.g., meniscal tears.
The wounds then closed often with a drain and a dressing applied.
ACL reconstruction is typically a same day procedure. Most people are able to go home after a few hours in recovery. It may be necessary for some patients to stay overnight before they are released. Pain medication will be given to help make the patient more comfortable. A splint may be in place to reduce pressure and help with overall comfort. You will need to use crutches for several weeks to allow the ACL to heal. Make sure you do your assigned exercises at home to help the knee get stronger and to aid with the recovery.
Make sure you follow all recovery instructions completely. You wonâ€™t be able to use aspirin or anti-inflammatory medications for the first 10 days. Ice your knee for 20 minute intervals several times per day. Keep your post-op follow up appointment and report any concerns you may have if they develop before that appointment.
If you have any redness around the wound or increasing pain in the knee or you have temperature or feel unwell, you should contact your surgeon as soon as possible.
Physiotherapy is an integral part of the treatment and is recommended to start as early as possible. Preoperative physiotherapy is helpful to better prepare the knee for surgery. The early aim is to regain range of motion, reduce swelling and achieve full weight bearing.
The remaining rehabilitation will be supervised by a physiotherapist and will involve activities such as exercise bike riding, swimming, proprioceptive exercises and muscle strengthening. Cycling can begin at 2 months, jogging can generally begin at around 3 months. The graft is strong enough to allow sport at around 6 months however other factors come into play such as confidence, fitness and adequate fitness and training.
Professional sportsmen often return at 6 months but recreational athletes may take 10 -12 months depending on motivation and time put into rehabilitation.
The rehabilitation and overall success of the procedure can be affected by associated injuries to the knee such as damage to meniscus, articular cartilage or other ligaments.
The following is a more detailed rehabilitation protocol useful for patients and physiotherapists. It is a guide only and must be adjusted on an individual basis taking into account pain, other pathology, work and other social factors.
Acute (0 – 2 Weeks)
- Wound healing
- Reduce swelling
- Regain full extension
- Full weight bearing
- Wean off crutches
- Promote muscle control
- Pain and swelling reduction with ice, intermittent pressure pump, soft tissue massage and exercise
- Patella mobilisation
- Active range of motion knee exercises, calf and hamstring stretching, contraction (non weight bearing progressing to standing), muscle control and full weight bearing. Aim for full extension by 2 weeks. Full flexion will take longer and generally will come with gradual stretching. Care needs to be taken with hamstring co contraction as this may result in hamstring strains if too vigorous. Light hamstring loading continues into the next stage with progression of general rehabilitation. Resisted hamstring loading should be avoided for approximately 6 weeks
- Gait retraining encouraging extension at heel strike
Stage 2- Quadriceps Control (2-6 Weeks)
- Full active range of motion
- Normal gait with reasonable weight tolerance
- Minimal pain and effusion
- Develop muscular control for controlled pain free single leg lunge
- Avoid hamstring strain
- Develop early proprioceptive awareness
- Use active, passive and hands on techniques to promote full range of motion
- Progress closed chain exercises (quarter squats and single leg lunge) as pain allows. The emphasis is on pain free loading, VMO and gluteal activation
- Introduce gym based exercise equipment including leg press and stationary cycle
- Water based exercises can begin once the wound has healed, including treading water, gentle swimming avoiding breaststroke
- Begin proprioceptive exercises including single standing leg balance on the ground and mini tramp. This can progress by introducing body movement whilst standing on one leg
- Bilateral and single calf raises and stretching
- Avoid isolated loading of the hamstrings due to ease of tear. Hamstrings will be progressively loaded through closed chain and gym based activity
Stage 3- Hamstring/Quadriceps Strengthening (6-12 Weeks)
- Begin specific hamstring loading
- Increase total leg strength
- Promote good quadriceps control in lunge and hopping activity in preparation for running
- Focal hamstring loading begins and is progressed steadily throughout the next stages of rehabilitation
- Active prone knee flexion which can be quickly progressed to include a light weight and gradually increasing weights
- Bilateral bridging off a chair. This can be progressed by moving onto a single leg bridge and then single leg bridge with weight held across the abdomen
- Single straight leg dead lift initially active with increasing difficulty by adding dumbbells
With respect to hamstring loading, they should never be pushed into pain and should be carefully progressed. Any subtle strain or tightness following exercises should be managed with a reduction in hamstring based exercises
- Gym based activity including leg presses, light squats and stationary bike which can be progressively increased in intensity as pain and control allow. It is important to monitor any effusions following exercise and if it is increasing then exercise should be toned down
- Once single leg lunge control is comparable to the other side hopping can be introduced. Hops can be made more difficult by including variations such as forward/back, side to side off a step and in a quadrant
- Running may begin towards the latter part of this stage
Prior to running certain criteria must be met
- No anterior knee pain
- A pain free lunge and hop that is comparable to the other side
- The knee must have no effusion
- Before jogging start having brisk walks, ideally on a treadmill to monitor landing
- Action and any effusion. This should be done for several weeks before jogging properly
- Increased proprioceptive manoeuvres with standing leg balance and progressive hopping based activity
- Expand calf routine to include eccentric loading
Stage Four-Sport Specific (3-6 Months)
- Improve leg strength
- Develop running endurance speed, change of direction
- Advanced proprioception
- Prepare for return to sport and recreational lifestyle
- Controlled sport specific activities should be included in the progression of running and gym loads. Increasing effusion post running that isn’t easily managed with ice should result in a reduction in running loads
- Advanced proprioception to include controlled hopping and turning and balance correction
- Monitor potential problems associated with increasing loads
- No open chain resisted leg extension exercises unless authorised by your surgeon
Stage Five-Return to Sport (6 Months Plus)
A safe return to sporting activities
- Full training for 1 month prior to active return to competitive sport
- Preparation for body contact sports. Begin with low intensity one on one contests and progress by increasing intensity and complexity in preparation for drills that one might be expected to do at training
- To improve running endurance leading up to a normal training session
- Full range, no effusion, good quadriceps control for lunge, hopping and hop and turn type activity. Circumference measures of thigh and calf to within 1 cm of other side
Complications are not common but can occur. Prior to making the decision of have this operation. It is important you understand these so you can make an informed decision on the advantages and disadvantages of surgery.
These can be Medical (Anaesthetic) complications and surgical complications
Medical (Anaesthetic) complications
Medical complications include those of the anaesthetic and your general well being. Almost any medical condition can occur so this list is not complete. Complications include
Allergic reactions to medications
Blood loss requiring transfusion with its low risk of disease transmission Heart attacks, strokes, kidney failure, pneumonia, bladder infections. Complications from nerve blocks such as infection or nerve damage. Serious medical problems can lead to ongoing health concerns, prolonged hospitalization. The following is a list of surgical complications. These are all rare but can occur. Most are treatable and do not lead to long term problems.
Approximately 1 in 200. Treatment involves either oral or antibiotics through the drip, or rarely further surgery to wash the infection out.
Deep vein thrombosis
These are clots in the veins of the leg. If they occur you may need blood thinning medication in the form of injections or tablets. Very rarely they can travel to the lung (Pulmonary Embolus) which can cause breathing difficulties or even death.
Excessive swelling & Bruising
This is due to bleeding in the soft tissues and will settle with time.
Can result from scar tissue within the joint, and is minimized by advances in surgical technique and rapid rehabilitation. Full range of movements cannot always be guaranteed.
The graft can fail the same as a normal cruciate ligament does. Failure rate is approximately 5%. If the graft stretches or ruptures it can still be revised if required by using tendons from the other leg.
Damage to nerves or vessels
These are small nerves under the skin which cannot be avoided and cutting then leads to areas of numbness in the leg. This normally reduces in size over time and does not cause any functional problems with the knee. Very rarely there can be damage to more important nerves or vessels causing weakness in the leg.
All grafts need to be fixed to the bone using various devices (hardware) such as screws or staples. These can cause irritation of the wound and may require removal once the graft has grown into the bone.
Donor site problems
Donor site means where the graft is taken from. In general either the hamstrings or patella tendon are used. These can be pain or swelling in these areas which usually resolves over time.
Can occur especially if there is damage to other structures inside the knee.
Reflex Sympathetic Dystrophy
An extremely rare condition that is not entirely understood, which can cause unexplained and excessive pain.
Anterior Cruciate Ligament reconstruction is a common and very successful procedure. In the hands of experienced surgeons who perform a lot of these procedures 95% of people have a successful result. It is generally recommended in the patient wishing to return to an active lifestyle especially those wishing to play sports involving running and twisting.
The above information hopefully has educated you on the choices available to you, the procedure and the risks involved. If you have any further questions you should consult with your surgeon.
- Normal Anatomy of the Knee Joint
- Knee Fracture
- Patellofemoral Instability
- Meniscus Tear and Surgery
- Arthroscopy of the Knee Joint
- Total Knee Replacement (TKR)
- PCL Reconstruction
- Cartilage Repair
- Patella Tendon Repair
Proudly serving patients across New Jersey and Bergen County from our office in Hackensack. Whether you are in Jersey City, Rutherford, Garfield, Lodi, Ridgewood, Nutley, or Englewood, NJ, we look forward to addressing your questions and providing you with the treatment you need.