Tapper, J Bone Joint Surg Am 1969 - Late Results after Meniscectomy

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Late Results after Meniscectomy

Tapper, Hoover·J Bone Joint Surg Am·1969·603 citations·Retrospective cohort

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Tapper and Hoover followed 213 patients for 10–30 years after uncomplicated meniscectomy at the Mayo Clinic. Using a structured symptom and disability questionnaire, they asked what the true long-term outcomes of meniscal excision actually are. At the time, the procedure was widely considered either harmless or preferable to leaving a torn meniscus in situ.

Key Findings

Only 38% of patients had a symptom-free, normally functioning knee at 10–30 year follow-up. 68% reached excellent or good results, and 13% had a poor result. The authors concluded meniscectomy is not a benign procedure.
Males significantly outperformed females: 74% excellent or good in men vs 44% in women (P < 0.01). Only 10% of women had symptom-free knees at final follow-up, compared to 45% of men. The authors found that 40% of female patients had no discrete tear — only a loose or hypermobile meniscus, suggesting misdiagnosis drove much of the sex disparity.
Patients aged ≤20 years at surgery had the worst outcomes of any age group: 50% excellent or good vs ~70–75% for all older groups (P < 0.01). The authors attribute this to more violent traumatic mechanisms and continued athletic demands after surgery.
For bucket-handle tears, leaving the peripheral rim intact yielded 67% excellent results and 83% excellent or good, compared to 36% excellent and 72% excellent or good with total meniscectomy. Leaving the posterior horn intact is NOT recommended: across all tears it produced only 55% excellent or good results and often required reoperation.
Duration of preoperative symptoms had no effect on long-term outcomes. Delaying surgery to confirm the diagnosis does not worsen results. Contradicting the prevailing dogma of the era.

Board PearlOnly 38% of patients have a normal knee 10–30 years after meniscectomy — the authors concluded meniscectomy is not a benign procedure.

Late Results after Meniscectomy

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|

Late Results after Meniscectomy

Tapper, Hoover·J Bone Joint Surg Am·1969·603 citations·Retrospective cohort

|

Tapper and Hoover followed 213 patients for 10–30 years after uncomplicated meniscectomy at the Mayo Clinic. Using a structured symptom and disability questionnaire, they asked what the true long-term outcomes of meniscal excision actually are. At the time, the procedure was widely considered either harmless or preferable to leaving a torn meniscus in situ.

Key Findings

Only 38% of patients had a symptom-free, normally functioning knee at 10–30 year follow-up. 68% reached excellent or good results, and 13% had a poor result. The authors concluded meniscectomy is not a benign procedure.
Males significantly outperformed females: 74% excellent or good in men vs 44% in women (P < 0.01). Only 10% of women had symptom-free knees at final follow-up, compared to 45% of men. The authors found that 40% of female patients had no discrete tear — only a loose or hypermobile meniscus, suggesting misdiagnosis drove much of the sex disparity.
Patients aged ≤20 years at surgery had the worst outcomes of any age group: 50% excellent or good vs ~70–75% for all older groups (P < 0.01). The authors attribute this to more violent traumatic mechanisms and continued athletic demands after surgery.
For bucket-handle tears, leaving the peripheral rim intact yielded 67% excellent results and 83% excellent or good, compared to 36% excellent and 72% excellent or good with total meniscectomy. Leaving the posterior horn intact is NOT recommended: across all tears it produced only 55% excellent or good results and often required reoperation.
Duration of preoperative symptoms had no effect on long-term outcomes. Delaying surgery to confirm the diagnosis does not worsen results. Contradicting the prevailing dogma of the era.

Board PearlOnly 38% of patients have a normal knee 10–30 years after meniscectomy — the authors concluded meniscectomy is not a benign procedure.

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