Presentation
CONCLUSION: Osteochondral fractures were detected by plain radiography in 10% of patients presenting with lateral patellar dislocation and did not alter ED management. [ncbi.nlm.nih.gov]
Entire Body System
- Swelling
Physical therapy is recommended which helps to control pain and swelling, prevent formation of scar of sof t tissue, and helps in collagen formation. [njorthoinstitute.com]
Physical therapy is recommended which helps to control pain and swelling, prevent formation of scar of soft tissue, and also helps in collagen formation. [trivalleyorthopedics.com]
After 6 weeks of treatment, the swelling and ecchymosis resolved. The knee ranges of motion were full without pain. [ncbi.nlm.nih.gov]
- Weakness
Her history is atypical in that after her fifth dislocation, her recovery was hindered secondary to persistent weakness and atrophy of her quadriceps out of proportion to disuse alone. [ncbi.nlm.nih.gov]
Finally, weak core musculature and weak hip muscles can decrease the muscular control an athlete has over their entire lower extremity including the knees. [sportsmd.com]
- Ecchymosis
After 6 weeks of treatment, the swelling and ecchymosis resolved. The knee ranges of motion were full without pain. [ncbi.nlm.nih.gov]
[…] position of the knee Spontaneous Relocation Up to 50% may have a normal appearance following spontaneous reduction prior to presentation When there is concern for a spontaneously reduced dislocation, look for more subtle signs of injury including swelling, ecchymosis [coreem.net]
Musculoskeletal
- Contusion
[…] trauma to lateral knee: normally no patellar contusion 4 [radiopaedia.org]
Magnetic resonance (MR) imaging of the knee is the modality of choice to evaluate underlying bone contusion patterns, associated soft-tissue injuries, and additional complex ligamentous and osteochondral injuries, many of which are not apparent on conventional [ncbi.nlm.nih.gov]
- Hyperlaxity
Together with this, there may be increased laxity or instability of the ligamentous constraints, which is more common in patients who have generalized hyperlaxity of the ligaments. [capetownkneesurgery.co.za]
Patellar dislocation usually occurs spontaneously following torsion of a semiflexed knee and is typically the result of underlying biomechanical abnormalities such as hyperlaxity of the medial patellofemoral ligament, high-riding patella, genu valgum, [amboss.com]
We suggest that this complication is caused by the original underlying pathology such as dysplastic trochlea, abnormal TT-TG, patella alta and hyperlaxity, resulting a greater reliance upon the reconstructed MPFL for patellar stability. [ncbi.nlm.nih.gov]
This period of time is significantly lengthened when the patellar dislocation is recurrent, which is often expected is situations where hyperlaxity of the ligaments exists. [health.uconn.edu]
These include: History of patella dislocation or subluxation Patellofemoral joint hyperlaxity or maltracking Shallow femoral groove Weak inner quadriceps muscles Tight lateral retinaculum, ITB, hip flexors, vastus lateralis and biceps femoris muscles. [physioworks.com.au]
- Muscle Strain
Injuries Corked Thigh Thigh Strain Hamstring Strain ITB Syndrome Popliteus Syndrome Muscle Strain (Muscle Pain) Cramps DOMS - Delayed Onset Muscle Soreness Children's Knee Conditions Osgood Schlatter's Sinding Larsen Johansson Syndrome Other Knee-Related [physioworks.com.au]
Psychiatrical
- Suggestibility
[…] controlled trial suggests that an operative approach is superior. [ncbi.nlm.nih.gov]
Diagnosis of Patella Dislocation/Subluxation Your doctor will examine your knee and suggests diagnostic tests such as X-ray, CT scan, and MRI scan to confirm condition and provide treatment. [njorthoinstitute.com]
Your doctor will examine your knee and suggests diagnostic tests such as X-ray, CT scan, and MRI scan to confirm condition and provide treatment. There are non-surgical and surgical ways of treating patellofemoral dislocation. [trivalleyorthopedics.com]
- Fear
A patellar apprehension test (when the patient expresses fear that the patella may dislocate as the examiner applies gentle laterally directed pressure) is almost always positive. ( CPEM 2007;8[1]:31.) [journals.lww.com]
[…] appearance following spontaneous reduction prior to presentation When there is concern for a spontaneously reduced dislocation, look for more subtle signs of injury including swelling, ecchymosis and joint effusion Injury to the popliteal artery is the most feared [coreem.net]
Pain Feeling the kneecap shift or slide out of the groove Feeling the knee buckle or give way Hearing a popping sound when the patella dislocates Swelling A change in the knee's appearance — the knee may appear misshapen or deformed Apprehension or fear [orthoinfo.aaos.org]
Neurologic
- Irritability
[…] of unabsorbed synovial membrane under the medial aspect of the patells is what type of knee injuryplica syndrome syndrome that can cause a pseudo-locked knee b/c the irritation affects patellar traction, but knee will unlock w/ snapping & poppingplica [quia.com]
Maltracking of the patella causes a considerable amount of pain and irritation at the front of the knee during movement. [physio.co.uk]
[…] sweeling (20-30 ml can inhibit function) first quad muscle to atrophy w/ knee swelling leads to tibial IR, tight triceps surea (10* ROM needed for walking, 15 for running) tight gastrocs/hamstring influence extensor mechanism blunt trauma of secondary irritation [quizlet.com]
It occurs when a mistracking kneecap (patella) irritates the femoral groove in which it rests on the thighbone (femur). Pinpointing a single cause is difficult, says Stephen Pribut, DPM, a sports podiatrist who specializes in running injuries. [runnersworld.com]
Common interventions in the treatment of Patellar Dislocation include: Manual Therapeutic Technique (MTT): hands on care including soft tissue massage, and joint mobilization by a physical therapist to modulate pain and reduce any soft tissue or tendon irritation [twinboro.com]
- Tingling
Cool, pale skin or numbness and tingling in or below the affected knee. A dislocation can cause other problems even if the bone pops back into place. [northshore.org]
This can result in further, increasing pain and in numbness and tingling. [patient.info]
[…] normally possible Unable to walk Inability to move the knee joint; in some cases, the injured leg comes back to its original position after it is flexed Swelling and redness Bruising or contusion, depending on the type of trauma Sensory disturbances (tingling [dovemed.com]
- Paresthesia
[…] vascular injury Findings Strong dorsalis pedis pulse and posterior tibial pulse Ankle-Brachial Index >0.9 Bedside duplex Ultrasound normal Management Observation hospital stay Serial distal vascular examinations Observe for distal extremity paleness, Paresthesia [fpnotebook.com]
Post-reduction Care Check popliteal artery, DP + PT pulses Obtain emergent vascular surgery consultation if pulses are weak/absent, or if there are hard signs of an ischemic limb or vascular injury (diminished or absent pulses, pale or dusky skin, paresthesias [coreem.net]
Workup
A workup typically includes X-rays and may require additional testing such as an MRI or CT scan to fully define the injury, and determine why the patient had the injury, if risk factors are present. [trihealth.com]
Treatment
Surgical Treatment for Patella Dislocation/Subluxation Surgical treatment is recommended for those individuals who have recurrent patella dislocation. [njorthoinstitute.com]
Two common treatment options include nonoperative treatment or operative repair of injured structures. [ncbi.nlm.nih.gov]
You can help by adding to it. ( March 2018 ) Treatment [ edit ] Conservative Treatment [ edit ] Conservative treatment in primary acute LPD (lateral patellar dislocation) is the therapy of choice. [en.wikipedia.org]
Prognosis
Prognosis Most people recover full function following a course of conservative care of physical therapy to strengthen and stabilize the knee. [twinboro.com]
What is the Prognosis of Kneecap Dislocation? The prognosis of Kneecap Dislocation is usually good, if appropriate medical treatment is provided. [dovemed.com]
What Is the Prognosis of a Knee Dislocation? In general, this is a very serious injury. Recover is possible, but often the injured knee does not regain its previous capacity to adsorb stresses. [emedicinehealth.com]
For this reason, low-velocity dislocations have a more optimistic prognosis than high-velocity dislocations. Knee Dislocation Symptoms There are several possible signs and symptoms that manifest when a knee is dislocated. [sgbonedoctor.com]
Prognosis of PFPS In younger patients, if appropriate action is taken at an early stage, exercise adjusted accordingly and the quadriceps muscles built up then the outlook for full functional recovery is very good. [patient.info]
Etiology
Etiology Clinical features Diagnostics Lipohemarthrosis in the presence of normal knee x-rays indicates an osteochondral lesion! Treatment Complications We list the most important complications. The selection is not exhaustive. [amboss.com]
[…] the femoral trochlea leading to knee pain, patellar dislocation, subluxation, and symptoms of patellar hypermobility. 1 – 18 It is a disabling condition that is most prevalent in younger people and seen more frequently in females than in males. 14 The etiology [dovepress.com]
Etiology, diagnosis and treatment are discussed. Arthroscopy is recommended to visualize chondral defects. Results are presented in combination with follow-up. Four patients still complain of instability of the knee after surgery. [ncbi.nlm.nih.gov]
It is situated deep to the vastus lateralis muscle, ranging from the posterior aspect of the medial femoral condyle to the superiomedial part of the patella, vastus medialis and quadriceps tendon. [1] Epidemiology/Etiology Epidemiology The incidence for [physio-pedia.com]
Nomura et al., [ 23 ] concluded that incompetence of the MPL is a major factor in the etiology of recurrent patellar dislocation. [openorthopaedicsjournal.com]
Epidemiology
Epidemiology Epidemiological data refers to the US, unless otherwise specified. Etiology Clinical features Diagnostics Lipohemarthrosis in the presence of normal knee x-rays indicates an osteochondral lesion! [amboss.com]
This article is intended to review the studies to the subjects of epidemiology, initial examination and management. [ncbi.nlm.nih.gov]
"Epidemiology and natural history of acute patellar dislocation". Am J Sports Med. 32 : 1114–21. doi : 10.1177/0363546503260788. PMID 15262631 . [en.wikipedia.org]
It is situated deep to the vastus lateralis muscle, ranging from the posterior aspect of the medial femoral condyle to the superiomedial part of the patella, vastus medialis and quadriceps tendon. [1] Epidemiology/Etiology Epidemiology The incidence for [physio-pedia.com]
Pathophysiology
Another cause of patellar symptoms is lateral patellar compression syndrome, which can be caused from lack of balance or inflammation in the joints. [8] The pathophysiology of the kneecap is complex, and deals with the osseous soft tissue or abnormalities [en.wikipedia.org]
This article reviews the pathophysiology, risk factors, and the existing classification systems for patellar instability in children and adolescents. [amjorthopedics.com]
Pathophysiology of Lateral Patellar Dislocation [Internet]. In: Zaffagnini S, Dejour D, Arendt E, editors. Patellofemoral Pain, Instability, and Arthritis. [journals.sfu.ca]
Prevention
RESULTS: Tibial tubercle distalization was generally successful in normalizing patellar height and preventing recurrent patellar dislocation. [ncbi.nlm.nih.gov]
Physical therapy is recommended which helps to control pain and swelling, prevent formation of scar of sof t tissue, and helps in collagen formation. [njorthoinstitute.com]
Physical therapy is recommended which helps to control pain and swelling, prevent formation of scar of soft tissue, and also helps in collagen formation. [trivalleyorthopedics.com]
Physiotherapy prior to patella stabilisation also helps to prevent the likelihood of any problems occurring once you have had the surgery. [physio.co.uk]