Bipartite Patella in Children Johnstown PA

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Brian E Gunnlaugson
(814) 535-6521
321 Main St
Johnstown, PA
Specialty
Orthopedic Surgery

Data Provided By:
Martin M Dudas, DMD
(814) 535-8321
538 Vine St
Johnstown, PA
Specialties
Orthodontics/Dentofacial Orthopedics

Data Provided By:
Peter James Ridella, MD
(814) 535-5554
1111 Franklin St Ste 140
Johnstown, PA
Specialties
Orthopedics
Gender
Male
Education
Medical School: Univ Of Pittsburgh Sch Of Med, Pittsburgh Pa 15261
Graduation Year: 1975
Hospital
Hospital: Upmc Lee Hosp, Johnstown, Pa; Conemaugh Mem Med Ctr, Johnstown, Pa; Windber Hospital & Wheeling Cl, Windber, Pa
Group Practice: Valley Orthopedics Inc

Data Provided By:
John M Burnheimer, DDS
(814) 266-1900
336 Bloomfield St Ste 103
Johnstown, PA
Specialties
Orthodontics/Dentofacial Orthopedics

Data Provided By:
Don Allen Lowry, MD
(814) 255-6781
2 Celeste Dr
Johnstown, PA
Specialties
Orthopedics
Gender
Male
Education
Medical School: Univ Of Ia Coll Of Med, Iowa City Ia 52242
Graduation Year: 1979

Data Provided By:
Brian Earl Gunnlaugson, MD
(814) 539-7417
321 Main St Ste 3C
Johnstown, PA
Specialties
Orthopedics
Gender
Male
Education
Medical School: Mem Univ Of Newfoundland, Fac Of Med, St Johns, Nfld, Canada
Graduation Year: 1984
Hospital
Hospital: Upmc Lee Hosp, Johnstown, Pa; Conemaugh Mem Med Ctr, Johnstown, Pa
Group Practice: Upmc Lee Regional Care Ctrs

Data Provided By:
William Chua Go Jr, MD
(814) 467-6653
609 Somerset St
Johnstown, PA
Specialties
Orthopedics
Gender
Male
Education
Medical School: Univ Of Santo Tomas, Fac Of Med And Surg, Manila, Philippines
Graduation Year: 1968

Data Provided By:
Ian Katz
(814) 255-6781
2 Celeste Dr
Johnstown, PA
Specialty
Orthopedic Surgery

Data Provided By:
James Michael Moses
(814) 255-6781
2 Celeste Dr
Johnstown, PA
Specialty
Orthopedic Surgery

Data Provided By:
Edward Brown Hill, MD
(814) 535-1600
1111 Franklin St Ste 110
Johnstown, PA
Specialties
Orthopedics
Gender
Male
Education
Medical School: Temple Univ Sch Of Med, Philadelphia Pa 19140
Graduation Year: 1960
Hospital
Hospital: Upmc Lee Hosp, Johnstown, Pa; Conemaugh Mem Med Ctr, Johnstown, Pa
Group Practice: Highland Orthopedics

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Bipartite Patella in Children

A Patient's Guide to Bipartite Patella in Children

Introduction

Bipartite patella is a congenital condition (present at birth) that occurs when the patella (kneecap) is made of two bones instead of a single bone. Normally, the two bones would fuse together as the child grows. But in bipartite patella, they remain as two separate bones. About one per cent of the population has this condition. Boys are affected much more often than girls.

This guide will help you understand

what parts of the knee are involved how this condition develops how doctors diagnose this condition what treatment options are available Anatomy

What is the patella and what does it do?


The knee is the meeting place of two important bones in the leg, the femur (the thighbone) and the tibia (the shinbone). The patella (kneecap) is the moveable bone that sits in front of the knee. This unique bone is wrapped inside a tendon that connects the large muscles on the front of the thigh, the quadriceps muscles, to the lower leg bone.

Related Document: A Patient's Guide to Knee Anatomy

Causes

What causes this condition?

The patella starts out as a piece of fibrous cartilage. It turns into bone or ossifies as part of the growth process. Each bone has an ossification center. This is the first area of the structure to start changing into bone.

Most bones (including the patella) only have one primary ossification center. But in some cases, a second ossification center is present. Normally, these two centers of bone will fuse together during late childhood or early adolescence. If they don’t ossify together, then the two pieces of bone remain connected by fibrous or cartilage tissue. This connective tissue is called a synchondrosis .


The most common location of the second bone is the supero-lateral (upper outer) corner of the patella. But the problem can occur at the bottom of the patella or along the side of the kneecap.

Injury or direct trauma to the synchondrosis can cause a separation of this weak union leading to inflammation. Repetitive microtrauma can have the same effect. The cartilage has a limited ability to repair itself. The increased mobility between the main bone and the second ossification center further weakens the synchondrosis resulting in painful symptoms.

Symptoms

What does bipartite patella feel like?

Most of the time, there are no symptoms. Sometimes there is a bony bump or place where the bone sticks out more on one side than the other. If inflammation of the fibrous tissue between the two bones occurs, then painful symptoms develop directly over the kneecap. The pain is usually described as dull aching.There may be some swelling.

Movement of the knee can be painful, especially when bending the joint. Atrophy of the quadriceps and malalignment of the patella can lead to patellar tracking problems. Squatting, stair climbing, weight training, and strenuous activity aggravate the knee causing increased symptoms....

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