KneeSchool/Clinical Examination Academy/Landing Error Scoring System
Landing Error Scoring System
Page 4.21.6 · Functional Testing · examination page
A scored observation of how someone lands, which turns a subjective judgement into a list.
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Landing Error Scoring System
Choose a depthFor Medical Students
What It Tests
The landing error scoring system scores a jump landing against a list of movement faults, so it converts an observation into a count. 4.4.9 covers single leg landing.
The examination is watching a standardised landing from the front and the side and recording which faults are present. 3.14.8 covers landing.
It matters because landing mechanics are associated with knee injury and an unscored observation is unreliable between examiners. 3.7.14 covers injury mechanisms.
How It Is Performed
Set up a standardised jump, which is a drop and a forward jump to a marked landing area.
Position yourself to view the landing from the front and arrange a second view from the side, since the faults divide between the two planes.
Ask the patient to jump and land naturally, without coaching, because coaching changes what is being measured. 4.2.32 covers previous physiotherapy.
Score the faults in the coronal plane, which include the knee moving inwards and the trunk leaning. 3.12.7 covers dynamic valgus.
Score the faults in the sagittal plane, which include landing with a straight knee and landing flat footed. 3.14.8 covers landing.
Score the overall impression as the list requires, and total the faults.
Repeat enough trials for a representative score rather than scoring one landing.
What a Positive Means
A low fault count with a soft, flexed, symmetrical landing is the good result.
A high fault count indicates landing mechanics associated with injury at a population level, which is a risk statement rather than a diagnosis. 3.7.14 covers injury mechanisms.
Knee valgus and a stiff landing together are the pattern that carries most of the concern. 3.12.7 covers dynamic valgus.
An asymmetrical landing after an injury or a reconstruction indicates incomplete rehabilitation. 4.20.1 covers the reconstruction assessment.
A good score does not establish readiness for sport, since the landing is planned and unloaded by comparison with a match. 4.21.8 covers return to play decision making.
Key Learning Points
- The system converts an observation into a fault count.
- The faults divide between the coronal and the sagittal plane.
- Coaching changes what is being measured.
- A high count is a population level risk statement, not a diagnosis.
- A good score does not establish readiness for sport.
MRCS Level
How It Is Performed
In a viva this is the answer to how landing mechanics are assessed objectively, and the expected version names the two planes.
The expected points are the standardised jump, the two viewing planes, the absence of coaching, the coronal faults, the sagittal faults, the total, and multiple trials.
Say that you would not coach the landing, and give the reason. 4.2.32 covers previous physiotherapy.
Say that you would score from two planes rather than one. 3.14.8 covers landing.
Say that the score describes risk at a population level rather than predicting an individual injury. 3.7.14 covers injury mechanisms.
What a Positive Means
The reasoning expected is that landing forces are absorbed by knee and hip flexion, so a stiff landing transfers more load to the joint and the ligaments. 3.14.8 covers landing.
Knee valgus during landing raises cruciate loading, which is the mechanism the scoring system is built around. 3.7.12 covers loading during landing.
Trunk position shifts the centre of mass and so changes the knee moment, which is why the trunk is scored. 3.14.7 covers jumping.
A scored list reduces examiner variability without removing it, which is the system's purpose and its limit. 4.1.8 covers examination documentation.
How Good It Is
The system is more reproducible than an unscored observation and less reproducible than a measured distance.
Its best contribution is making landing mechanics recordable and comparable over time, which supports rehabilitation. 4.1.8 covers examination documentation.
It is a risk description rather than a diagnostic test, so it does not identify a structure.
Motion analysis measures landing mechanics properly, so this system is the clinical approximation. 4.1.6 covers that relationship.
No figures appear for any accuracy comparison on this page, under decision 023, and the comparison is the claim being made. The scoring thresholds are a literature convention and this repository does not state them.
Key Learning Points
- Landing forces are absorbed by knee and hip flexion.
- Knee valgus during landing raises cruciate loading.
- Trunk position changes the knee moment.
- A scored list reduces examiner variability without removing it.
- The system is the clinical approximation of motion analysis.
FRCS Level
How Good It Is
At decision level the score supports injury prevention and rehabilitation planning rather than a return decision.
A high fault count in an uninjured athlete identifies a modifiable risk pattern, which is the main use. 3.7.14 covers injury mechanisms.
An asymmetrical landing after reconstruction identifies incomplete rehabilitation when the strength tests have passed. 4.21.2 covers the single leg hop.
A score that improves with training demonstrates the pattern is modifiable, which is the basis of prevention programmes. 4.2.34 covers previous rehabilitation.
The score contributes little to a return decision, because the landing is planned and the risk is unplanned. 4.21.8 covers return to play decision making.
Where It Misleads
The commonest error is scoring one landing, which is unrepresentative. 3.14.8 covers landing.
The landing is coached, which improves the score and changes nothing about the athlete's habit. 4.2.32 covers previous physiotherapy.
A single plane view is used, so half the fault list is unscored. 3.12.7 covers dynamic valgus.
A population level risk statement is applied to an individual as a prediction. 3.7.14 covers injury mechanisms.
A low score is read as readiness, which the system does not assess. 4.21.7 covers return to sport testing.
Key Learning Points
- Scoring one landing is unrepresentative.
- Coaching improves the score without changing the habit.
- A single plane view leaves half the fault list unscored.
- A population risk statement is not an individual prediction.
- A low score does not assess readiness.
Fellowship Level
Where It Misleads
At fellowship level the scoring system's problem is that it is reliable about something whose relationship to injury is a population association.
The faults it counts are associated with injury in groups and do not identify which individual will be injured, and the clinical use often forgets that. 3.7.14 covers injury mechanisms.
The landing is planned, self initiated and unopposed, while injuries happen unplanned and often with contact, so the test samples a different event. 3.14.6 covers cutting manoeuvres.
Scoring is observational, so inter examiner agreement depends on training, and a score from one clinic is not comparable with another's. 4.1.8 covers examination documentation.
The pattern is modifiable within minutes, which means a score measures the current performance rather than the habit under fatigue. 4.21.3 covers the triple hop.
Improving a score has not been shown by anything in this repository to reduce injury in an individual, and that claim needs the literature rather than this page. 4.21.8 covers return to play decision making.
Key Learning Points
- The faults are associated with injury in groups, not in individuals.
- A planned self initiated landing is a different event from an injury.
- Observational scores are not comparable between clinics.
- The pattern is modifiable within minutes, so the score is performance not habit.
- Whether improving a score reduces injury is a literature question.
Explore Further
Where this topic came from and where it goes next in the spiral.
- 4.21.5Y Balance Test
- 4.21.7Return to Sport Testing
- 4.4.9Single Leg Landing Assessment
- 4.21.1Single Leg Squat
- 4.21.8Return to Play Decision Making
- 4.5.7Dynamic Alignment
References
No reference list is attached to this draft. Evidence verification has not run, because source retrieval was unavailable at generation time. Under the Operations Handbook a missing reference is acceptable and an invented one is a critical failure, so nothing has been cited and no citation marker appears in the text. This page carries no diagnostic accuracy figure, which is decision 023 rather than an omission. The comparative standing of these tests is standard teaching and a specific sensitivity written from memory is the same class of claim as an invented citation, so ACC-001 refuses the number and the page states the comparison. A reviewer with the literature can add the figures into How Good It Is without restructuring the page, and chapter 3.17 lists the studies the figures would come from. Any measurement here, including a flexion angle, is written from standard teaching, has not been checked, and is registered under decision 006 in pipeline/config/figures with a verification state of UNVERIFIED_FROM_MEMORY.
Safety. KneeSchool is educational and does not give individual medical advice. Seek urgent assessment for a knee that cannot bear weight after an injury, a hot swollen knee with a fever, or new numbness, weakness or coldness in the leg or foot.