The hip is one of the human body’s largest weight-bearing joints. It consists of two main parts: a ball at the top of your thighbone and the rounded socket in the pelvis. Ligaments hold the ball into the socket and provide stability to the joint. A smooth protective cover called the articular cartilage covers the bone surfaces of the ball and socket and cushions the ends of the bones, enabling them to move easily against one another.
The physicians at ONS are available to assist in diagnosing and treating your knee or hip condition. We invite you to schedule a consultation with a hip specialist at our one of our offices in Greenwich or Stamford, CT or Harrison, NY.
Learn more about some of the common hip conditions treated by our specialists by clicking a link below:
Jonathan L. Berliner, MD is an orthopaedic surgeon and fellowship-trained specialist in hip and knee replacement. His expertise includes muscle sparing anterior hip replacement, minimally invasive total knee and partial knee replacement, complex revision total hip and total knee replacement, computer-assisted surgery, and trauma of the lower extremity.
Dr. Berliner earned his medical degree from New York University School of Medicine, graduating with Alpha Omega Alpha (AOA) honors . He completed his residency in orthopaedic surgery at the University of California, San Francisco (UCSF), followed by a fellowship in hip and knee replacement at Hospital for Special Surgery in New York City.
Dr. Berliner is a recipient of the John Charnley Award, a national award presented annually by the Hip Society for best innovative clinical research related to hip replacement. He has also traveled to Haiti and Nicaragua as a visiting surgeon and provides other volunteer medical services abroad.
Dr. Berliner’s primary focus is to develop an individualized treatment plan to help patients return to their desired activity levels and regain a fulfilling quality of life.
Please click here to request an appointment online or call 203-869-1145.
Dr. Berliner at ONS is a superb physician and I can not recommend him highly enough. Knowledgeable and compassionate with a sense of humor. I had two anterior hip replacements in 10 months and couldn’t be happier. Run, if you can 🙂 to Dr. Berliner. (Patient comments on ONS Facebook)
With two hip replacements in 10 months I cannot say enough about Dr. Berliner and ONS. Professional, caring and superb quality of care. Would recommend Dr. Berliner and ONS to anyone with orthopedic concerns. (5 Star Review on Google from Lauri G.)
I came across Dr. Berliner, who has a special training to perform anterior hip replacement surgery. This surgery shortens recovery time and it is also less painful. When I met Dr. Berliner, I knew I was in great hands. He explained everything to me in great detail and was very patient with me. I felt so comfortable that I scheduled my surgery before leaving the office. My surgery went smoothly. I was home next day. I highly recommend him! He is an exceptional orthopedic surgeon! Thank you very much. (5 Star Review on Healthgrades from Yelena)
It has been 8 weeks since my hip replacement with Dr. Berliner. He gave me my pre-pain active life back. I am completely pain free and have resumed my sporting activities. I walk at least a mile per day, resumed Pilates and even started to play a little golf. Everyone is amazed with my recovery ahead of schedule. I consider Dr. Berliner an excellent and compassionate surgeon. His communication was clear and informative. His confidence helped me make the decision to undergo the procedure. He made the process less scary than I thought it would be. I am very thankful to Dr. Berliner and the staff at ONS and will gladly recommend him to others and would entrust him with another procedure if needed. (Review on ONS Facebook by Annette M.)
Dr. Jonathan Berliner did anterior double hip replacement on my husband and we are both so impressed! His compassion and professionalism is amazing! We are both so grateful for his work and expertise! Thank you Dr Berliner! (5 Star Review on Facebook from Dana S-B)
Dr. Berliner is a very nice man who answered all of my many questions prior to and after my surgery. It has been 4 weeks since my anterior full hip replacement and I am doing very well. I was pleased with his bedside manor, he had no arrogance and I never felt rushed at an appointment. Most of all, with Dr. Berliner’s muscle sparing anterior technique, I was able to do a full squat with no pain only 8 days after my surgery and I was twirling my cane like Charlie Chaplin on my daily walk! (5 Star Review on Healthgrades from Lisa in New Canaan, CT)
I was having severe left hip pain and went to Dr. Berliner for a second opinion. I ended up having him do my anterior hip replacement this past January, and I am so pleased. He is professional and compassionate, and an excellent surgeon. I was a nervous wreck since I never had surgery before, nor had I ever even been in a hospital in my 67 years of living! He is wonderful, bottom line. I need a knee replaced too, and he will be doing that when the time comes!(5 Star review on Healthgrades from Pam P. in Norwalk)
At 34, I was young to need a hip replacement, but needed one regardless. I am very grateful to have found Dr. Berliner. He handled a complex case swiftly and adeptly, with a calm confidence unparalleled in other surgeons.
The post-operative pain was negligible compared to the amount of pain I was in pre-op. Within a week, I was walking with a cane, something I hadn’t been able to do during the 5 months prior. Evident of his people skills, he even handled my post-operative anxiety about complications occurring like a pro, alleviating any concerns.
I sent the post-op images to a relative overseas who is also an orthopedic surgeon. He said Dr. Berliner did “brilliant work.” – I can only agree. Thank you. (Laura D.)
Dr. Berliner is absolutely the best! I did much research before having my total anterior hip replacement and because he is young and starting his practice, I could not find much information on him. I took a chance because I had a good feeling and he did an outstanding job with my surgery. He was very present and available and didn’t have the doctor ego where he wouldn’t answer questions etc. etc. He was nothing short of incredible. I’m so thankful to him and all the team at ONS. (5 Star Review on Healthgrades by Matt F. of Danbury, CT)
When I first came into your office, I was nine months post-operative from a total knee replacement from a doctor in Florida. He did a horrible job. I was +70/65 bend. Just horrible. I met Dr. Berliner after he came highly recommended. He changed my life on 12/15/17. He did a total revision on my right knee. I am now 8 days post operative and bending 80 already and -5. I am so blessed for him. It was a very tough surgery and he did an amazing job. (JB, 5 Star Reveiw on ONS Facebook page)
Watch Dr. Berliner’s presentation on Anterior Total Hip Replacement and Rapid Recovery:
Dr. Berliner discusses Anterior Hip Replacement with Dr. Lou Bisogni on White Plains Public Television:
American Academy of Orthopaedic Surgeons California Orthopaedic Association American Association of Hip and Knee Surgeons
The John Charnley Award, The Hip Society 2015, for best innovative research encompassing important advances in the management of hip disorders. Alpha Omega Alpha Honor Society
TEAM COVERAGE EXPERIENCE
University of California, San Francisco PlaySafe Marathon San Francisco Marathon San Francisco Rock’ n Roll Half Marathon
Hospital Lenin Fonseca, Nicaragua
CRUDEM Foundation, Haiti
New York City Free Clinic, New York
Wong SE, Zhang AL, Berliner JL, Ma CB, Feeley BT. Preoperative patient-reported scores can predict postoperative outcomes after shoulder arthroplasty. J Shoulder Elbow Surg. 2016 Jun;25(6):913-9. PMID 27039669
Berliner JL, Brodke DJ, Chan V, SooHoo NF, Bozic KJ. Can Preoperative Patient-reported Outcome Measures Be Used to Predict Meaningful Improvement in Function After TKA? Clin Orthop Relat Res. 2016 Mar 8. PMID 26956248
Berliner JL, Brodke DJ, Chan V, SooHoo NF, Bozic KJ. John Charnley Award: Preoperative Patient- Reported Outcome Measures Predict Clinically Meaningful Improvement in Function after THA. Clin Orthop Relat Res. 2016 Feb;474(2):321-9. doi: 10.1007/s11999-015-4350-6. PMID 26201420
Berliner JL, Regalado-Magdos A, Ma CB, Feeley BT. Biomechanics of Reverse Total Shoulder Arthroplasty. J Shoulder Elbow Surg. 2015 Jan;24(1):150-160. doi: 10.1016/j.jse.2014.08.003. PMID 25441574
Elliott RE, Bollo RJ, Berliner JL, Silverberg A, Carlson C, Geller EB, Barr WB, Devinsky O, Doyle WK. Anterior temporal lobectomy with amygdalohippocampectomy for mesial temporal sclerosis: predictors of long-term seizure control. Neurosurg. 2013 Aug;119(2):261-72. doi: 10.3171/2013.4.JNS121829. PMID 23706057
Berliner JL, Verma K, Lonner BS, Penn PU, Bharucha NJ. Discriminative validity of the Scoliosis Research Society 22 questionnaire among five curve-severity subgroups of adolescents with idiopathic scoliosis. Spine J. 2013 Feb;13(2):127-33. doi: 10.1016/j.spinee.2012.10.025. PMID 23218828
Bollo RJ, Berliner JL, Fischer I, Miles DK, Thiele EA, Zagzag D, Weiner HL. Extraventricular subependymal giant cell tumor in a child with tuberous sclerosis complex. Neurosurg Pediatr. 2009 Jul;4(1):85-90. doi: 10.3171/2009.3.PEDS08225. PMID 19569916
Berliner JL, Brodke D, Chan V, Bozic KJ. Patient Reported Outcome Measures as a Tool for Surgical Appropriateness in Total Hip Replacement. Paper presentation presented at the American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting, Las Vegas NV, 3/2015
Berliner JL, Zhang AL, Lansdown DA, Ma CB, Feeley BT. Prevalence Of Rotator Cuff Atrophy And Fatty Infiltration In Patients With Glenohumeral Osteoarthritis. Abstract to be presented at the American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting, Las Vegas NV, 3/2015.
Berliner JL, Brodke D, Chan V, Bozic KJ. Patient Reported Outcome Measures as a Tool for Surgical Appropriateness in Total Knee Replacement. Abstract to be presented at the 2014 American Association of Hip and Knee Surgeons Annual Meeting, Houston TX, 11/2014
Verma K, Berliner JL, Lonner BS Does the SRS-22 Correlate with Curve Severity in Adolescent Idiopathic Scoliosis? An Age and Gender Matched Comparison. Poster presented at the 17th International Meeting on Advanced Spine Techniques (IMAST), 7/2010
THA: Posterior Approach – AAOS Advanced Reconstruction Hip 2. Collaborating with Dr. Thomas Vail
Revision THA: Component Removal – AAOS Advanced Reconstruction Hip 2. Collaborating with Dr. Kevin Bozic.
Dr. Frank Ennis specializes in hip and knee replacement, hip arthroscopy, complex revision arthroplasty of the hip and knee, and treatment of complications from hip fractures. He is fellowship-trained in adult reconstructive surgery. Dr. Ennis is a staff orthopedic surgeon at Greenwich Hospital and was among the first orthopedic surgeons in the New York Metropolitan area to do computer-assisted surgery for total knee and hip replacement. This cutting edge technique uses computerized navigation to guide the surgeon which may improve the accuracy of joint replacement surgery.
After completing undergraduate studies at Yale University and post-baccalaureate pre-medical studies at Harvard University, Dr. Ennis graduated from Duke University School of Medicine. He completed his residency at Yale University Department of Orthopaedic Surgery. He completed Fellowship training in adult reconstructive surgery at New England Baptist Hospital in Boston.
Tim Greene, MD is an orthopedic surgeon who is fellowship trained in sports medicine and hip arthroscopy, a technique that has revolutionized the treatment of various hip problems. Dr. Greene graduated Princeton University and earned his medical degree at the Medical College of Georgia. He performed a residency in orthopedics at Emory University and served as associate team physician to the athletic teams at Georgia Tech.
Dr. Greene completed fellowship training at the Steadman Hawkins Clinic in Vail, Colorado under the direction of Dr. Marc Philippon. While there, he served as associate team physician for the U.S. Ski Team.
Dr. Greene’s interest in sports medicine derives from his ongoing personal interest in sports. In college at Princeton University, he played varsity football, served as team captain and earned numerous awards for outstanding athletic achievement.
I thought it was important to send a note to someone at ONS about Dr. Greene and Alicia Hirscht, DPT. I have been treating with Dr. Greene for a torn abductor tendon and other hip issues since December. I started PT in Stamford under Alicia Hirscht. I would easily recommend either practitioner to a family member.
Dr. Greene’s communication was clear and concise when weighing treatment options. PT Hirscht made room in her schedule for me and took the time and effort to get me up and playing tennis again. They are both true professionals and showed an incredible amount of patience working with me to recover from my chronic injuries.
Keep up the excellent work and hiring practices. (note from patient Peter Y.)
Unbelievable experience after many years and many doctors and feeling incredibly defeated I randomly saw ads for this place and figured what do I have to loose. After one visit with Dr Heftler figured it out. By this point I’d already had 6 MRIs from other doctors, medications, injections to no avail. He called me with the news himself not a nurse. I couldn’t be more impressed and grateful. I couldn’t be more grateful to him after years of debilitating pain someone finally figured it out. He then referred me to Dr Greene for surgery, another fantastic experience. All in all I will ONLY ago here for any orthopedic needs and send everyone else here. PT employees are fabulous, nurses and desk staff always made a pleasant experience. Highly recommend. (5 Star Review on Yelp from Essie C.)
I am a Director of Critical Care and a seasoned RN as well. Dr. Greene is top notch- I send everyone to him that I can. He is humane, highly comprehensible, takes his time, explains things well and is clinically excellent! The surgery center he uses in Stamford was excellent, clean, great staff and everyone was in the same page! (5 Star Review on Google from Liza J-K)
Just took my daughter to an appointment with Dr. Tim Greene after a disappointing appointment at another orthopedic office not affiliated with ONS. If I was able to…I would give Dr. Greene and ONS a rating much higher than 5 Stars.
I could not have been more impressed with every aspect of my daughters care. The offices were clean & the staff was extremely welcoming & friendly. We were brought into the exam room early which in most cases doesn’t happen at a doctors office.
Dr. Greene came in and listened to our concerns/issues, examined our daughter and was in absolutely no rush to move on to his next patient. He answered all of our questions, explained the X-Rays to us and expressed genuine care for her injury and treatment. He made sure we understood everything and had a plan going forward.
We also had concerns about how to schedule MRI’s and other testing. He immediately sent a note to someone on his team to help us. We sat with Jessica who took her time and made all the arrangements for us. She also followed up the next day with info we needed to make sure everything was done right.
About 3 hours after our appt. with Dr. Greene my wife and I had a question we forgot to ask. We called the office after Dr. Greene had left but a message was taken and I was assured either Dr. Greene or his assistant would call back the next day. They called in the morning and answered everything for us.
Being an athlete and also a firefighter I have seen a lot of orthopedic surgeons and have been to many practices and I can say this was one of the best experiences I have had. In my opinion they go way above the standard of care. I would highly recommend Dr. Greene to anyone who may need orthopedic care. (5 Star Review from Google from Paul F.)
I have been coming here for at least 15 years and have seen a variety of amazing doctors … Dr. Greene being a favorite in our household for years and would trust him with everything. Recently I broke my elbow and was sent to Dr. Vadasdi. She was amazing! Great with surgery and aftercare. Very compassionate throughout the whole process! Thank you ONS for getting me through everything! (ED)
The ONS team is like family. Dr.Greene is my hip doctor and he is excellent!! I feel that I am in great hands from the moment I walk in the doors.. Thank you ONS. (TA)
Dr. Greene: It has been 6 weeks since you mended my fractured left clavicle and I continue to make progress in my recovery. I estimate that my range of motion in the shoulder is close to 90% and I am beginning to cautiously build strength in the muscles affected by my injury. I wish you a wonderful Thanksgiving, and this year I am especially grateful for having such a great orthopedist as you. – (RG)
Doctors, Nurses, Therapists, and support staff: This is a big THANK YOU for all the expert and attentive care you extended towards my recovery from a broken pelvis and elbow after a spill on black ice in December ’09. Let everyone know, there is Zumba after broken bones heal. I received excellent care at Greenwich Hospital, with elbow surgery by Dr. Geene (yay for titanium). Each of you as a part of this “total team” took me from being in excruciating pain and bedridden to no pain and full function and then some! – (LA)
Joint replacement specialist Brian Kavanagh, MD is a staff orthopedic physician at Greenwich Hospital where he has performed over 6000 surgeries over the past 25 years. Board-certified by the American Board of Orthopaedic Surgery, Dr. Kavanagh graduated Princeton University and attended University of Connecticut School of Medicine. His internship and residency were performed at the Mayo Clinic, Mayo Graduate School of Medicine in Rochester, Minnesota. He served on the full-time faculty at the Mayo Graduate School of Medicine for seven years and on the teaching staff at Yale University School of Medicine in New Haven for five years. He is a former consultant to the Department of Orthopedics at the Mayo Clinic, where he specialized in hip and knee reconstruction and was an instructor in the hip and knee total joint fellowship program.
Dr. Kavanagh has authored and edited numerous articles and book chapters and serves on the editorial staff of the Journal of Arthroscopy and the publication, Clinical Orthopaedcis and Related Research. He is an examiner for the American Board of Orthopaedic Surgery and a member of several specialty orthopedic societies.