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. 2022 Oct 5;2022(10):CD010606. doi: 10.1002/14651858.CD010606.pub3

Xu 2015.

Study characteristics
Methods RCT
Participants Setting: Department of Orthopedics, Central People's Hospital of Huizhou City, China
Size: 78 participants; 39 in LISS group, 39 in condylar plate group
Recruitment period: March 2009 to January 2013
Baseline characteristics: 54 male, 24 female; mean age: 55.6 (SD 4.2) years in LISS group, 54.9 (SD 4.0) years in condylar plate group; fractures included were AO type C1 (36 fractures), C2 (26 fractures), C3 (16 fractures)
Inclusion criteria: aged ≥ 18 years; LISS plate or condylar plate selected for internal fixation; fresh fractures; informed consent signed, which was approved by the hospital ethics committee.
Exclusion criteria: diseases of the heart, liver, kidney and other important organs; osteoporosis; autoimmune diseases; congenital malformation or disability of both lower limbs; contraindications for internal fixation
Interventions Participant were randomised to:
  • LISS;

  • condylar plate method.

Outcomes Schedule: mean follow‐up 12.2 (SD 2.9) months in LISS group, mean follow‐up 12.5 (SD 3.1) months in condylar plate method group
Outcomes: mean operating time, length of stay, incision length, Evanich score, superficial infection, haematoma formation and implant loosening
Notes Paper was translated to English to enable data extraction and review.
Funding/sponsor/declarations of interest: not reported
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Low risk Randomisation by random number table.
Allocation concealment (selection bias) Unclear risk Not stated.
Blinding of participants and personnel (performance bias)
All outcomes High risk Nature of interventions meant that operating surgeons were not blinded. No details relating to participant blinding.
Blinding of outcome assessment (detection bias)
All outcomes Unclear risk Not reported.
Incomplete outcome data (attrition bias)
All outcomes Low risk All participants completed follow‐up, all included in the results analysis, and no dropouts.
Selective reporting (reporting bias) Unclear risk No protocol registered.
Other bias Low risk No other sources of bias.

AO: Arbeitsgemeinschaft für Osteosynthesefragen; ASIF: Association of the Study of Internal Fixation; CT: computer tomography; DCS: dynamic condylar screw; DRI: Disability Rating Index; EQ‐5D: EuroQol‐5 Dimensions; EQ‐VAS: EuroQol‐Visual Analogue Scale; KSS: Knee Society Score; LCP: locking condylar plate; LISS: Less Invasive Stabilization System; MFA: Musculoskeletal Function Assessment; NCB: non‐contact bridging; NHS: National Health Service; OKS: Oxford Knee Score; ORIF: open reduction and internal fixation; OTA: Orthopaedic Trauma Association; PSS: Personal Social Services; RCT: randomised controlled trial; RIMN: retrograde intramedullary nail; SD: standard deviation; SF‐12: 12‐item Short Form; SF‐36: 36‐item Short Form; SMFA: Short Musculoskeletal Function Assessment; VAS: Visual Analogue Scale.