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Dr. Allen Lu

Orthopedic Surgery
City of Industry, CA
26 years experience male

Locations

Office

Placentia

Address

1275 North Rose Drive, Suite 130, Placentia
Directions

My office hours

Saturday: Closed
Show more

Insurances accepted

Blue Cross of California

Blue Shield of California

CIGNA Health Care

Coventry Health Care

Aetna Life Insurance Company

Anthem BC Life & Health Insurance Company

First Health Group Corporation

Health Net

L.A. Care

Tricare

Universal Health Care

About

Bio

The single most important aspect of medicine is to understand that it is truly an art. Every patient is an individual, with different needs and different aspirations. In sports medicine, we need to tailor our care to your specific situation, whether you are a high performance professional athlete, active military, college athlete, high school athlete, club athlete, recreational athlete, or daily walker. The point is that treatment should be tailored to your specific situation. With medicine, it is also important to treat each patient with compassion. You never have to ask me what I would recommend for my own family, because I will treat you as family. I am a partner, companion, and friend in your treatment before I am a surgeon. But if you do indeed need surgery, you can be assured I will give you the best. If there is a better surgeon available to you for your particular problem, I will find him/her for you.

Specialties
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.

Orthopedic Surgery

Sports Medicine

Languages spoken

Mandarin

Doctor Q&A

388 Answers
145 Agrees
The number of answers this doctor has agreed with.
A 46-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Depends: Patella injuries and acl injuries are very different and encompasse a wide variation of different injuries. Each injury has very different recovery ti... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 47-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Patience: Unfortunately, the acl graft takes around 6-8 months at the earliest to completely incorporate and return to full strength. It means that any time bef... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 29-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
No: Acl reconstructions typically take between 20 and 60 minutes to perform. Catheters are only necessary for surgeries that take longer than 2 hours.
Created for people with ongoing healthcare needs but benefits everyone.
A 28-year-old male asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Quad weakness: The most common source of pain and "instability" after acl reconstruction is from weakness in the quad muscles (acl failure is possible but actually l... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 40-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
No: Even though there is a risk of tendon rupture associated with levofloxacin, it's mechanism is a loss of blood supply. The acl graft matures by drawing... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 16-year-old male asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Complex: The LCL is extremely complex. A tear often requires surgical reconstruction as it does not heal on its own. Knee cap pain is a separate and discrete i... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 21-year-old male asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Varies: Unfortunately, labral tears come in many different forms, so your individual situation needs to be examined along with you friendly neighborhood sport... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 36-year-old female asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Not typically: The mcl is a structure with high healing potential on its own. It has multiple parts, all of which seldom need surgical fixation. Many patients have p... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 28-year-old male asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Definition: The PCL is a ligament that like the acl, cannot really be "repaired". Therefore, we create tunnels in the bone above and below where the original liga... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 47-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Separate structures: The acl is a ligament in the center of the knee that holds the knee together by preventing certain knee rotations and translations. The kneecap (or pa... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 36-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Defined: Skeletal refers to that which relates to the bony elements of the body, including bones, joints, and ligaments. Orthopedic refers to the field of musc... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A male asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Shoulder blade: Since rotator cuff years cannot heal on their own without a repair, we can only stabilize our shoulder position through strengthening the shoulder bla... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 61-year-old male asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Surgeons: Usually, the best way to get the best hip replacement is to find an orthopedic surgeon that you can trust and have a good relationship with. The best ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 39-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Reverse butterflies: Scapular stabilizer strengthening pulls the shoulder joint into the proper position. The shoulder blade muscles are key in keeping the shoulder in pla... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 32-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Orthopedic sports: In general, an orthopedic surgeon or sports medicine physician focuses on problems with the rotator cuff. If there is a tear that needs surgery, the o... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 30-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Restoring stability: There are many different methods for PCL reconstructions, depending on the surgeon you go to. There are single versus double bundle, bone block versus... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 36-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Reconstruction: An acl tear is not able to repair itself because the body seals off both ends of the tear. In some cases, the torn acl can scar into and heal to surro... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 31-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Yes, certainly: An acl cannot be fixed, per se. However, it can be reconstructed with a donor tendon from elsewhere on your knee or from a cadaver (allograft, or dono... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 28-year-old female asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Tough diagnosis: Lcl tears are very difficult to diagnose. Even orthopedic surgeons often have difficulty. It is usually associated with a fairly high energy twisting,... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 47-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Variable: Crutches assist with walking after an acl reconstruction because the quad muscles are usually inhibited and not functioning after knee surgery. As the... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 43-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Typically: An acl graft usually matures between 6 and 9 months after surgery, depending on the type of graft (your own, or a cadaver), from a graft standpoint, y... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 41-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
No: A torn rotator cuff tear does not have any healing potential. Once torn, the ends of the tendon heal over and cannot reconnect. Treatments like laser,... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 39-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Tough question: Most knee injuries occur despite all the training that we do to prevent injuries. However, quad strengthening and overall conditioning can slightly de... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 39-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Variable: That depends on a number of factors: 1) allograft or autograft - when using your own tendon (either patellar tendon or hamstring tendon), the donor si... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 30-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
No!: The goal of an acl reconstruction is to allow you to perform pivoting motions and return to normal activities. So you should definitely get back to th... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 39-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Very strong: One criteria for an allograft and the way it is fixed is that's its strength need to be as strong as the original acl. At the time of surgery, if done... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 44-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Variable: That depends on a number of items: the type of work you do, the method of acl reconstruction, and the graft choices. In some situations, it may take 4... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 39-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Yes!: Acl tears typically cause initial swelling, but usually resolves on its own. After an acl is torn, some people get back to their normal state and norm... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Shoulder stabilizati: It is a method of tightening the shoulder to prevent dislocations in patients that have "multidirectional instability". The interval closure can artif... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 44-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
50-90%: The success rate is quite variable depending on the study you are looking at. Some studies have good to excellent results in 90% of patients, but the ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Of course: We have so many ways of fixing fractures, including lightweight casts, splints, and braces. We also have so many surgical techniques from invasive to ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 36-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Not recommended: The military press action requires the rotator cuff to contract and hold the contraction throughout the entire cycle. A strained rotator cuff will typ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 36-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Depends: Every patient is different, and your ability to jog needs to be evaluated based upon your pre-surgery level, your quad function before and after surge... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 33-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Instability: Shoulder instability is quite common. Either you have an underlying joint laxity (looseness) or you underwent some trauma. Either way, you would benef... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 42-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Yes: Locking and catching with sharp pain can be associated with chondromalacia or cartilage defects. These typically stabilize over many months to a level... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 43-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Yes!: An acl tear makes the knee unable to resist rotational movements that occur when you plan your knee and twist to the opposite side. However, walking a... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 35-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Not much: While we often give "antiinflammatories" like candy to control pain and inflammation, the medications have only a very small affect on swelling. The m... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Not really: This depends more on the type of acl reconstruction and your mobility afterwards. Autograft (your own tendon) acls are typically more painful and affe... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 47-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Rest: There is no specific exercise that will prevent a shoulder from dislocating again. It has more to do with the bony and ligamentous structures. However... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 29-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Not really: Weakness to one side does not sound as much like an acl injury. It sounds more like an mcl or lcl injury depending on which side it is buckling on. Th... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 58-year-old female asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Trigger finger: After a rotator cuff repair, it is not uncommon to have swelling. This swelling can stay around the entire arm and hand. Swelling can also cause irri... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 36-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Variable: In general, we expect patients to come off of narcotic medications by 1-2 weeks after surgery. After that, the overall conditioning of the patient bef... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 37-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Functional loss: The rotator cuff typically tears at the insertion where it attaches to the humerus bone (ball part of the ball and socket). Since it stabilizes the sh... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 18-year-old female asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Re-xray: If there is increased pain after a reinjury to the fracture, the only reasonable plan is to get it re-xrayed. Please get it checked!
Created for people with ongoing healthcare needs but benefits everyone.
A 35-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Yes: An ultrasound can examine many tendons that are traditionally examined with an mri. We can often see tendinitis, calcifications, and tears. However, i... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 45-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Referred pain: It is very common to have pain in the shoulder after injuries and problems in the abdomen. Injuries to the liver and gallbladder often causes right sh... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 34-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Individual: That is a very personalized question that should be tailored to your own knee deficits, pain level, and whether reconstruction surgery is right for yo... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 46-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Sometimes: It really depends on whether there was a specific injury that caused the knee arthritis or flareup of underlying arthritis. In most cases, it isn't a ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 39-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
Yes: Most knee replacements are made of cobalt alloys because they are harder. The titanium is generally too soft to work as a knee surface. There is, howe... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 29-year-old member asked:
Dr. Allen Lu
Dr. Allen Luanswered
Orthopedic Surgery 26 years experience
It does not heal: An acl ligament tear does not heal on its own. When an acl tears, the fluid inside the knee seals off the two torn ends of the acl and prevents them f... Read More
Created for people with ongoing healthcare needs but benefits everyone.

Testimonials
Recommendations and Thank you notes are endorsements given from patients or other doctors.

5
Recommendations
554
Thank you notes
Dec 3, 2012
Excellent ACL orthopedic surgeon.
Great doctor.
HealthTap member
Mar 30, 2015
Dr. Lu is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Thank u so much I was told that I have problems with my L-4 and L-5, S-1 was sure if it could contribute to the pain in the elbow that's so
HealthTap member
Thank you Dr.Lu! bruising is deep purple red and blue grn ylw. Your response gave me relief as I have to wait till morning to call Dr. :)
HealthTap member
Thank you, your answer was very helpful! I had a partial meniscectomy 2 weeks ago and hopefully back to activity soon

Education & Training

Medical/Graduate school

UCLA School of Medicine, CA
Graduated 1997MD

Residency

University of Rochester

Awards

Multiple teaching awards
Top Orthopedic Surgeon , Third Place, California - Winter
2013
HealthTap Founding Doctor

Affiliations

SCOSI Orthopedics
American Academy of Orthopaedic Surgeons
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