Please click on the article title to read the full article.


Join Dr. Kathleen Hogan for her free and informative seminar today

Posted on June 8, 2017 by NHOC Tech under Dr. Hogan, Featured Articles, News

The first step towards managing joint pain is understanding it. Join Dr. Kathleen Hogan for … Read More

When Can You Go Home After a Hip or Knee Replacement?

Posted on May 30, 2017 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A. Hogan, MD When knee and hip replacements were first developed most patients would stay in the hospital for a minimum of a week, sometimes longer. This lengthy hospital stay was felt to be necessary for patients to get the physical therapy and the care they required for a full recovery. Today, this … Read More

The Quadruple Joint Replacement – Bilateral Hip & Knee Arthroplasty

Posted on April 30, 2017 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A. Hogan, MD Hip and knee replacements first began being performed in the United States in the early 1970’s. They are now considered to be one of the most common and most successful orthopedic operations. Over a million joint replacements are performed each year, and it is estimated that over 7 million people … Read More

Tennis and Golf after Joint Replacement

Posted on March 31, 2017 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A. Hogan, MD As the last of the snow melts away, our thoughts turn away from the ski slopes and towards the golf course and the tennis courts. Patients who have had their hips or knees replaced frequently ask if they can safely participate in tennis and golf after joint replacement. Make sure … Read More

Do Knee Injuries Cause Arthritis?

Posted on February 25, 2017 by NHOC Tech under Dr. Hogan, Featured Articles, Uncategorized

by: Kathleen A. Hogan, MD Watching football on Sunday afternoon, your favorite player twists their knee and lays on the ground. Have they torn a ligament or meniscus? Or will they be back playing later in the game? What impact do knee injuries have on the eventual development of osteoarthritis? Many Factors Influence Arthritis Development … Read More

How Does Gaining Weight Affect Your Knees?

Posted on January 17, 2017 by NHOC Tech under Dr. Hogan, Featured Articles

by Kathleen A. Hogan, MD The holidays are a time when many people eat and drink a bit too much and then resolve to lose that weight in the new year. Unfortunately, once weight is gained, it is often difficult to lose. Many people notice that gaining weight seems to affect their joints, causing knee … Read More

How Does Body Weight Affect Knee Arthritis?

Posted on December 23, 2016 by NHOC Tech under Dr. Hogan, Featured Articles

by Kathleen A. Hogan, MD The holidays are a time when many people eat and drink a bit too much and then resolve to lose that weight in the new year. Unfortunately, once weight is gained, it is often difficult to lose. Many people notice that gaining weight seems to affect their joints, causing knee … Read More

Does Wearing High Heels Damage Your Knees?

Posted on November 27, 2016 by NHOC Tech under Dr. Hogan, Featured Articles, InMotion Newsletter

by: Kathleen A. Hogan, MD It is hard not to notice when a women walks down the street or through the hospital in 3 inch stiletto heels. It is estimated that over 40% of women wear high heals daily. Most of these shoes are not comfortable after several hours of wear and the potential negative … Read More

Knee Replacements in the Congo – Part 4

Posted on October 13, 2016 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A. Hogan, MD I am part of a group of female orthopedic surgeons (WOGO) who travel to third world countries to improve the lives of people by improving mobility through joint replacement. In July, we traveled to the Democratic Republic of Congo (DRC) as guests of the Dikembe Mutombo Foundation to perform knee … Read More

Knee Replacement in Congo – Part 3

Posted on October 5, 2016 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A Hogan, MD I am part of a group of female orthopedic surgeons (WOGO) who travel to third world countries to improve the lives of people by improving mobility through joint replacement. In July, we traveled to the Democratic Republic of Congo (DRC) as guests of the Dikembe Mutombo Foundation to perform knee … Read More

Knee Replacement in Congo – Part 2

Posted on September 2, 2016 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A. Hogan, MD I am part of a group of female orthopedic surgeons (WOGO) who travel to third world countries to improve the lives of people by improving mobility through joint replacement. In July, we traveled to the Democratic Republic of Congo (DRC) as guests of the Dikembe Mutombo Foundation to perform knee … Read More

Knee Replacement in Congo – Part I

Posted on August 5, 2016 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A Hogan, MD The Democratic Republic of Congo The Democratic Republic of Congo (DRC), formerly known as Zaire, is not a tourist destination.    Because of ongoing violence, much of the country is inaccessible.   There are warnings for travelers posted on the US Embassy website. There is an ongoing yellow fever epidemic.   The DRC … Read More

Top Three Things to Do Before Having Surgery

Posted on July 5, 2016 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A. Hogan, MD Everyone who has surgery worries about what can go wrong.   No surgery, no matter how minor, is without some risk.   However there are a few things that you can do before having surgery which may reduce the risk of complications. Stop Smoking Yes, smoking can result in lung cancer.   But … Read More

36 hours in the Congo

Posted on June 2, 2016 by NHOC Tech under Dr. Hogan, Featured Articles

by Kathleen A. Hogan, MD “Going up that river was like traveling back to the earliest beginnings of the world, when vegetation rioted on the earth and the big trees were kings.”  Joseph Conrad – Heart of Darkness Traveling to the Democratic Republic of Congo (DRC) It takes approximately 19 hours, flying over 7000 miles … Read More

How to Lose Weight When Your Joints Hurt

Posted on April 26, 2016 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A. Hogan, MD People who are obese (body mass index -BMI >30) have an almost seven times increase in the incidence of knee arthritis compared to those with a normal body mass index (BMI 18.5-25). Weight loss has been shown to reduce the pain associated with knee arthritis and improve function.  However, many … Read More

Do I Need a Joint Replacement?

Posted on March 24, 2016 by NHOC Tech under Dr. Hogan, Featured Articles, Uncategorized

by: Kathleen A. Hogan, MD As a specialist in joint replacement, I am frequently asked “How will I know when it is time to have my hip or knee replaced?”  As we age, most people experience intermittent pain in their joints, usually worse with activity.   Sometimes this pain is due to arthritis, but there are … Read More

Viscosupplementation for Knee Arthritis

Posted on March 4, 2016 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A Hogan, MD Over 30% of Americans over the age of 60 are affected by the symptoms of knee arthritis, such as pain, stiffness, swelling, and activity limitations.  Initial treatments for knee arthritis include activity modification, weight loss, physical therapy, bracing, anti-inflammatory medications, and injections with steroids or hyaluronic acid (also called a … Read More

Planning for a Medical Mission Trip

Posted on February 2, 2016 by NHOC Tech under Dr. Hogan, Featured Articles

by: Kathleen A. Hogan, MD In July, I will be traveling to Kinshasa, the capital of The Democratic Republic of Congo with WOGO – Women Orthopedist Global Outreach – on a medical mission to perform knee replacements at the Biamba Marie Mutombo Hospital.  There will be over 50 people who travel with us – including … Read More

Insomnia After Joint Replacement

Posted on December 21, 2015 by NHOC Tech under Dr. Hogan, Featured Articles, InMotion Newsletter

by Kathleen A. Hogan, M.D. One of the most common complaints after knee or hip replacement is difficulty sleeping. By six weeks after surgery, most people are having less pain in their new joint and increasing their activity. But they often lay awake at night, unable to sleep. Why does this happen and what can … Read More

Why Do Artificial Joints Wear Out?

Posted on November 2, 2015 by NHOC Tech under Dr. Hogan, Featured Articles, InMotion Newsletter

By Kathleen Hogan, M.D. Nothing lasts forever. Articular cartilage allows our joints to move freely without pain. As that cartilage wears out or becomes damaged, arthritis develops. If the resulting pain and deformity from arthritis becomes severe, many joints can be replaced, usually with metal and plastic implants. However, these artificial joints wear out with … Read More

How Much Do I Need to Exercise? 30 Minutes a Day

Posted on October 3, 2015 by NHOC Tech under Dr. Hogan, Featured Articles

By: Kathleen A Hogan, MD Weight matters to all of us, whether we’re size 6 or 16. Regular exercise can help with weight maintenance and loss, especially when combined with a healthy diet. Exercise also elevates mood, improves cardiovascular health, and increases bone density. Inactivity on the other hand, contributes to the development of obesity, … Read More

How to Choose An Orthopaedic Specialist


Posted on September 2, 2015 by NHOC Tech under Dr. Hogan, Featured Articles

By: Kathleen A. Hogan, MD Everyday when you get out of bed, your knees crack. They hurt when you go up and down stairs. You have tried taking ibuprofen and tylenol but that no longer seems to work. You mention your knee pain to your primary care doctor who gets X-rays and tells you that … Read More

Afraid to Have A Knee Replacement? You Are Not Alone

Posted on July 16, 2015 by NHOC Tech under Dr. Hogan, Featured Articles

By: Kathleen A. Hogan, MD Each year, over 700,000 total knee replacements are performed per year in the United States. Many people who have arthritis can have pain relief with non-operative treatments such as weight loss, braces, activity modification, medications, and injections. But when these treatments are no longer effective, joint replacement is often recommended. … Read More

Return to Golf and Tennis After Joint Replacement 

Posted on June 18, 2015 by NHOC Tech under Dr. Hogan, Featured Articles

By: Kathleen A. Hogan, MD As the last of the snow melts away, thoughts turn away from the ski slopes and towards the golf course and the tennis courts.    Unfortunately, if you have been living with hip or knee pain, these recreational activities may be more painful than pleasurable.     As a joint … Read More

What is Arthritis?

Posted on May 19, 2015 by NHOC Tech under Dr. Hogan, Featured Articles, InMotion Newsletter

By: Kathleen A. Hogan, MD Today I’d like to answer the question, What is arthritis? One of my patients recently expressed concern that her primary care physician had diagnosed her with “degenerative joint disease.” She was worried that this disease was spreading throughout her body causing arthritis in all of her joints, and wondered what … Read More

What is the Cause of My Hip Pain?

Posted on May 12, 2015 by NHOC Tech under Dr. Hogan, Featured Articles

By: Kathleen A. Hogan, MD Your hip is hurting. Walking, sleeping, everything seems to cause your hip to hurt. The pain must be coming from your hip joint, correct? Perhaps. Sometimes it can be surprisingly difficult to determine what joint is the primary source of pain.  Hip arthritis can cause back, hip, and knee pain. … Read More

Traveling After Joint Replacement: Questions Answered

Posted on March 23, 2015 by NHOC Tech under Dr. Hogan, Featured Articles

By: Kathleen A. Hogan, MD When can I travel? Will my new hip replacement set off metal detectors at the airport? Can I get a card to prove that I had my knee replaced? These are common questions of patients are planning on traveling after joint replacement. Security Screening When Traveling After Joint Replacement Hip … Read More

Why Weight Matters: Obesity and Knee Replacement

Posted on March 17, 2015 by NHOC Tech under Dr. Hogan, Featured Articles

By: Kathleen A. Hogan, MD Obesity and knee replacement are closely linked. It is well established that people who are overweight have an increased incidence of knee arthritis at a younger age and are more likely to require knee replacement. Joint pain can limit mobility and diminish exercise tolerance which may contribute to weight gain. … Read More

Snowbirds

Posted on February 23, 2015 by NHOC Tech under Dr. Hogan, Featured Articles

By: Kathleen A. Hogan, MD With the arrival of cold and snow, many people head south for warmer weather. One of the many reasons older people leave New Hampshire during the winter months is that their arthritic joints feel better in a warmer climate. Certainly, avoiding snow and ice can minimize your chance of falling … Read More

Outpatient Joint Replacement?

Posted on January 3, 2015 by NHOC Tech under Dr. Hogan

By: Kathleen A. Hogan, MD When knee and hip replacements were first developed, most patients would stay in the hospital for a minimum of a week, sometimes longer. This lengthy hospital stay was felt to be necessary for patients to get the physical therapy and care they required for full recovery. Today, many patients remain … Read More

Seasonal Tips for Autumn

Posted on November 3, 2014 by NHOC Tech under Dr. Hogan

By: Kathleen A. Hogan, MD The hot days of summer are drawing to a close, replaced by cool, crisp fall evenings. As leaves change color, and kids go back to school, our focus shifts from fun times on the beach to preparing your home and yard for the winter season ahead. Autumn is also a … Read More

Joint Replacement in Tanzania

Posted on August 28, 2014 by NHOC Tech under Dr. Hogan

Joint Replacement in Tanzania By: Kathleen A. Hogan, MD In June, I participated in an amazing trip to Arusha, Tanzania with a group of five female joint surgeons and 45 additional health care professionals including physician assistants, physical therapists, nurses, anesthesiologists, and medical doctors. Our group is called WOGO – Women Orthopaedist Global Outreach. In … Read More

Do I Need An MRI?

Posted on April 4, 2014 by NHOC Tech under Dr. Hogan

By: Kathleen A. Hogan, MD When I see patients in the office with knee or hip pain, I am often asked, “Do I need an MRI?”  and “I had an MRI, why do I need X-rays?” There are many different imaging studies that physicians use to evaluate painful or injured joints.   An X-ray is typically … Read More

Life After Joint Replacement

Posted on April 3, 2014 by NHOC Tech under Dr. Hogan

The sky was deep blue without a single cloud as I stood by the field at the Pepperell airfield, watching a patient fulfill his dream of skydiving with his granddaughter.  Six months earlier, when we discussed replacing his hip, I told him that the two things that I absolutely do not recommend doing after joint … Read More

New Year’s Resolutions – Loosing Weight and Exercising Often

Posted on April 2, 2014 by NHOC Tech under Dr. Hogan

January 1 brings the promise of a new year.  What were your New Year’s resolutions?  Have they already been abandoned?   Many people hope to loose weight , exercise more, and quit smoking in the new year, but soon give up.   These resolutions require lifestyle modifications and are difficult to accomplish. As an orthopaedic surgeon, I … Read More

Recovery After Knee Arthroscopy

Posted on April 1, 2014 by NHOC Tech under Dr. Hogan

A meniscus tear can cause locking, catching, buckling, and instability.  The meniscus is a C-shaped fibro-cartilage that acts as a cushion on the medial and lateral (inside and outside) part of the knee.   As you age, the meniscus becomes more susceptible to degenerative tearing.  Unlike knee pain from arthritis, the discomfort from a torn meniscus … Read More

Physical Therapy – Does it Work?

Posted on March 5, 2014 by NHOC Tech under Dr. Hogan

When physical therapy (PT) is suggested for hip knee, or back pain, patients sometimes respond “That doesn’t work for me.” or “The co-pays are too expensive.” However PT can be very effective at treating many common causes of musculoskeletal pain.  “If I walk every day, why do I need therapy?”.  This question reflects another common … Read More

Knee Pain: Arthritis vs Meniscus Tear

Posted on March 1, 2014 by NHOC Tech under Dr. Hogan

Not all knee pain is arthritis, even when you are older than 65! Arthritis is the result of damage to the articular cartilage.  The meniscus is a C-shaped fibro-cartilaginous structure located between the femur and tibia on the inside and outside of the knee.   The meniscus acts as a shock absorber, protecting the articular cartilage. … Read More

Do You Need Joint Replacement? (Part 4)

Posted on August 3, 2013 by NHOC Tech under Dr. Hogan

Part IV – How Long Does it Take to Recover After Joint Replacement? This is a 4 part series, the articles are also posted at nhoc.com/category/dr-hogan/ As a specialist in joint replacement, I am frequently asked “How long will it be until I am back up and doing the things I want to do?”   The … Read More

Do You Need Joint Replacement? (Part 3)

Posted on July 3, 2013 by NHOC Tech under Dr. Hogan

Part III – What to Expect in the Hospital After Joint Replacement This is a 4 part series, the articles are also posted at nhoc.com/category/dr-hogan/ As a specialist in joint replacement, I am frequently asked “What happens while I am in the hospital?”   On the day of your surgery, you will be asked to arrive … Read More

Do You Need Joint Replacement? (Part 2)

Posted on June 3, 2013 by NHOC Tech under Dr. Hogan

Part II – How to Prepare for Joint Replacement Surgery This is a 4 part series, the articles are also posted at nhoc.com/category/dr-hogan/ As a specialist in joint replacement, I am frequently asked “How can I best prepare for my upcoming surgery?”  There are many things that you can do to get ready for surgery. … Read More

Do You Need Joint Replacement? (Part 1)

Posted on March 3, 2013 by NHOC Tech under Dr. Hogan

Part I – Do You Need a Joint Replacement? This is a 4 part series, the articles are also posted at nhoc.com/category/dr-hogan/ As a specialist in joint replacement, I am frequently asked “How will I know when it is time to have my hip or knee replaced?”  As we age, most people experience intermittent pain … Read More

Gender Disparities in Joint Replacement

Posted on October 16, 2012 by NHOC Tech under Dr. Hogan

Women have a longer life expectancy compared to men. Women are also more likely than men to develop arthritis. However, joint replacement is significantly underutilized by women. Women typically undergo joint replacement at an older age then men. When they do finally have surgery, women typically have higher pain scores and lower functional scores than … Read More

Through The Front Door

Posted on September 10, 2012 by NHOC Tech under Dr. Hogan

Published In Senior Beacon As a specialist in hip surgery, I meet patients every day who have hip arthritis. When we discuss surgery, almost every patient has asked me if I do hip replacement “that new way.” What is the new way of doing a hip replacement? Some surgeons, myself included, have started doing hip … Read More

Activity After Joint Replacements

Posted on July 3, 2012 by NHOC Tech under Dr. Hogan

Arthritis. It can be debilitating. When pain in your hips or knees keeps you from doing everyday activities, such as going up and down stairs, putting on socks and shoes, and chasing after grandchildren, it may be time to consider joint replacement surgery. The goals of total joint replacement are to relieve pain, improve mobility, … Read More

Top Three Things to Do Before Having Surgery

Posted on April 3, 2012 by NHOC Tech under Dr. Hogan

Everyone who has surgery worries about what can go wrong.   No surgery, no matter how minor, is without some risk.   However there are a few things that you can do before having surgery which may reduce the risk of complications. 1. Stop Smoking:  Yes, smoking can result in lung cancer.   But there are more immediate … Read More