Cochrane · systematic review · CD008106

Surgical versus non‐surgical interventions for treating patellar dislocation

Smith, TO, Gaukroger, A, Metcalfe, A, et al. · Cochrane Database of Systematic Reviews · 2023 · Cochrane Library

Bone, Joint and Muscle Trauma2 versionsAMSTAR 2: not assessed

SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.

Questions

current version

GRADE rated

No studies

Included studies

No studies 0 · 0%Ungraded 0 · 0%Very low 6 · 100%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Current version only

Surgical compared with non‐surgical treatment for patellar dislocation

Population: people with lateral patellar dislocation

CD008106.PUB4 (current) · 6 questions

Outcome	Effect	Evidence	Status / GRADE
Number of participants sustaining recurrent patellar dislocationa Surgical vs non‐surgical treatment	RR 0.55 [0.4, 0.75]	8 studies · 438 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Knee and physical functiona Measured using the Kujala patellofemoral disorders scorea Scale from: 0 to 100 (higher scores = better function) Surgical vs non‐surgical treatment	MD 5.73	7 studies · 401 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Adverse effects of treatment Overall incidence of complications Surgical vs non‐surgical treatment	RR 2.21 [0.73, 6.66]	2 studies · 144 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Patient satisfactiona Reported as 'good' or 'excellent'. Surgical vs non‐surgical treatment	RR 1.01 [0.74, 1.38]	3 studies · 176 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Patient‐reported knee instabilitya Incidence of patellar subluxation Surgical vs non‐surgical treatment	RR 0.75 [0.5, 1.12]	5 studies · 256 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Subsequent requirement for surgery (reoperations) for complicationsa Incidence Surgical vs non‐surgical treatment	RR 0.45 [0.07, 2.73]	3 studies · 195 participants	Very low Downgraded: risk of bias, imprecision, inconsistency

Surgical compared with non‐surgical treatment for patellar dislocation

Population: people with first‐time patellar dislocation1

CD008106.PUB3 · 8 questions

Outcome	Effect	Evidence	Status / GRADE
Number of participants sustaining recurrent patellar dislocation Surgical vs non‐surgical treatment	RR 0.53 [0.33, 0.87]	5 studies · 294 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Number of participants sustaining recurrent patellar dislocation Surgical vs non‐surgical treatment	RR 0.67 [0.42, 1.08]	2 studies · 165 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Tegner activity score4 Scale from 0 to 10 (higher scores = better function) Surgical vs non‐surgical treatment	no estimate extracted	1 study · 40 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
KOOS4 Scale from: 0 to 100 (higher scores = better function) Surgical vs non‐surgical treatment	no estimate extracted	1 study · 77 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Kujala patellofemoral disorders score Scale from: 0 to 100 (higher scores = better function) Surgical vs non‐surgical treatment	no estimate extracted	4 studies · 171 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Kujala patellofemoral disorders score Scale from: 0 to 100 (higher scores = better function) Surgical vs non‐surgical treatment	no estimate extracted	2 studies · 167 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Adverse effects of treatment Incidence Surgical vs non‐surgical treatment	no estimate extracted	1 study · 125 participants	Very low Downgraded: risk of bias, imprecision, inconsistency
Subsequent requirement for surgery (re‐operations) for complications Incidence Surgical vs non‐surgical treatment	RR 1.06 [0.59, 1.89]	2 studies · 165 participants	Very low Downgraded: risk of bias, imprecision, inconsistency