Hjelle, Arthroscopy 2002 - Articular Cartilage Defects in 1,000 Knee Arthroscopies

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Articular Cartilage Defects in 1,000 Knee Arthroscopies

Hjelle, Brittberg, et al.·Arthroscopy·2002·937 citations·Prospective cohort

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Purpose

Focal chondral or osteochondral defects can be painful and disabling, have a poor capacity for repair, and may predispose patients for osteoarthritis. New surgical procedures that aim to reestablish hyaline cartilage have been introduced and the results seem promising. The purpose of this study is to provide reliable data on chondral and osteochondral defects in patients with symptomatic knees requiring arthroscopy and to calculate the prevalence of patients who might benefit from cartilage repair surgery.

Methods

Type of Study: Prospective study.

One thousand consecutive knee arthroscopies were included in this study.
Immediately after each arthroscopy, the surgeon completed a questionnaire providing detailed information about the findings.
Chondral and osteochondral lesions were classified in accordance with the system recommended by the International Cartilage Repair Society (ICRS).

Results

Chondral or osteochondral lesions (of any type) were found in 61% of the patients.
Focal chondral or osteochondral defects were found in 19% of the patients.
In these patients, 61% related their current knee problem to a previous trauma, and a concomitant meniscal or anterior cruciate ligament injury was found in 42% (n=81) and 26% (n=50), respectively.
The mean chondral or osteochondral total defect area was 2.1 cm2 (range, 0.5 to 12; standard deviation [SD], 1.5).
The main focal chondral or osteochondral defect was found on the medial femoral condyle in 58%, patella in 11%, lateral tibia in 11%, lateral femoral condyle in 9%, trochlea in 6%, and medial tibia in 5%.
It has been suggested that cartilage repair surgery may be most suitable in patients younger than 40 to 50 years old.
A single, well-defined ICRS grade III or IV defect with an area of at least 1 cm2 in a patient younger than 40, 45, or 50 years accounted for 5.3%, 6.1%, and 7.1% of all arthroscopies, respectively.

Conclusions

Our study supports the contention that articular cartilage defects are common. It has the advantages of a prospective design and use of a new classification system recommended by the ICRS. This modern system focuses on objectively measurable parameters of the lesion's extent and not its surface appearance.

Copyright remains with the authors and publisher.

Articular Cartilage Defects in 1,000 Knee Arthroscopies

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Articular Cartilage Defects in 1,000 Knee Arthroscopies

Hjelle, Brittberg, et al.·Arthroscopy·2002·937 citations·Prospective cohort

|

Purpose

Focal chondral or osteochondral defects can be painful and disabling, have a poor capacity for repair, and may predispose patients for osteoarthritis. New surgical procedures that aim to reestablish hyaline cartilage have been introduced and the results seem promising. The purpose of this study is to provide reliable data on chondral and osteochondral defects in patients with symptomatic knees requiring arthroscopy and to calculate the prevalence of patients who might benefit from cartilage repair surgery.

Methods

Type of Study: Prospective study.

One thousand consecutive knee arthroscopies were included in this study.
Immediately after each arthroscopy, the surgeon completed a questionnaire providing detailed information about the findings.
Chondral and osteochondral lesions were classified in accordance with the system recommended by the International Cartilage Repair Society (ICRS).

Results

Chondral or osteochondral lesions (of any type) were found in 61% of the patients.
Focal chondral or osteochondral defects were found in 19% of the patients.
In these patients, 61% related their current knee problem to a previous trauma, and a concomitant meniscal or anterior cruciate ligament injury was found in 42% (n=81) and 26% (n=50), respectively.
The mean chondral or osteochondral total defect area was 2.1 cm2 (range, 0.5 to 12; standard deviation [SD], 1.5).
The main focal chondral or osteochondral defect was found on the medial femoral condyle in 58%, patella in 11%, lateral tibia in 11%, lateral femoral condyle in 9%, trochlea in 6%, and medial tibia in 5%.
It has been suggested that cartilage repair surgery may be most suitable in patients younger than 40 to 50 years old.
A single, well-defined ICRS grade III or IV defect with an area of at least 1 cm2 in a patient younger than 40, 45, or 50 years accounted for 5.3%, 6.1%, and 7.1% of all arthroscopies, respectively.

Conclusions

Our study supports the contention that articular cartilage defects are common. It has the advantages of a prospective design and use of a new classification system recommended by the ICRS. This modern system focuses on objectively measurable parameters of the lesion's extent and not its surface appearance.

Copyright remains with the authors and publisher.

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