PMID- 27045086
OWN - NLM
STAT- MEDLINE
DCOM- 20170707
LR  - 20190318
IS  - 1552-3365 (Electronic)
IS  - 0363-5465 (Linking)
VI  - 44
IP  - 7
DP  - 2016 Jul
TI  - Outcomes of Hip Arthroscopic Surgery in Patients With Tonnis Grade 1 
      Osteoarthritis With a Minimum 2-Year Follow-up: Evaluation Using a Matched-Pair 
      Analysis With a Control Group With Tonnis Grade 0.
PG  - 1781-8
LID - 10.1177/0363546516638087 [doi]
AB  - BACKGROUND: There are limited studies on the effect of mild osteoarthritis (OA) 
      on outcomes of hip arthroscopic surgery. PURPOSE: To conduct a matched-pair 
      analysis with a minimum 2-year follow-up to evaluate outcomes after hip 
      arthroscopic surgery in patients with Tonnis grade 1 OA. STUDY DESIGN: Cohort 
      study; Level of evidence, 3. METHODS: Data were prospectively collected on 
      patients who underwent hip arthroscopic surgery between April 2008 and December 
      2012. Patients were excluded if they had previous hip conditions. The remaining 
      patients were divided into either Tonnis 0 or 1 grade OA groups and were matched 
      in a 1-to-1 ratio according to age within 5 years, sex, body mass index category, 
      labral treatment, and capsular treatment. Four patient-reported outcome (PRO) 
      scores, as well as the visual analog scale (VAS) score for pain, patient 
      satisfaction, and rates of revision arthroscopic surgery and conversion to total 
      hip arthroplasty (THA), were recorded. RESULTS: A total of 1412 hip arthroscopic 
      procedures were performed during the study period, of which 1036 met the 
      inclusion criteria and 892 (86.1%) had 2-year follow-up. There were 738 and 154 
      patients with Tonnis grade 0 and 1, respectively; 93 patients were matched in 
      each group. The Tonnis grade 0 group had a mean follow up of 28.7 months (range, 
      23.5-67.9 months), and the Tonnis grade 1 group had a mean follow up of 31.5 
      months (range, 23.6-63.5 months). Both groups demonstrated a significant 
      improvement in all PROs and the VAS at a minimum 2-year follow-up. For the Tonnis 
      grade 0 group, the improvements (in points) in the PROs were as follows: modified 
      Harris Hip Score (mHHS), 15.51; Nonarthritic Hip Score (NAHS), 20.65; Hip Outcome 
      Score-Activities of Daily Living (HOS-ADL), 16.83; and Hip Outcome 
      Score-Sport-Specific Subscale (HOS-SSS), 20.91. The VAS score for the Tonnis 
      grade 0 group decreased by 2.82 points. For the Tonnis grade 1 group, the 
      improvements (in points) in the PROs were as follows: mHHS, 19.52; NAHS, 20.96; 
      HOS-ADL, 18.20; and HOS-SSS, 21.61. The VAS score for the Tonnis grade 1 group 
      decreased by 2.84 points. No significant difference was found between the mean 
      change in PROs, VAS, or patient satisfaction between the groups (P > .05). There 
      was no significant difference in subsequent rates for revision arthroscopic 
      surgery or conversion to THA between the groups (P = .3 and .6, respectively). 
      The rates for revision arthroscopic surgery and conversion to THA were 9.68% and 
      9.68%, respectively, in the Tonnis grade 0 group and 5.38% and 11.83%, 
      respectively, in the Tonnis grade 1 group. CONCLUSION: At 2-year follow-up, 
      patients with Tonnis grade 1 OA had improved outcomes after hip arthroscopic 
      surgery, with no significant difference compared with a matched control group of 
      patients with Tonnis grade 0 OA. However, further studies are underway to 
      determine if the results of the Tonnis grade 1 cohort will deteriorate over 
      longer term follow-up.
CI  - (c) 2016 The Author(s).
FAU - Chandrasekaran, Sivashankar
AU  - Chandrasekaran S
AD  - American Hip Institute, Westmont, Illinois, USA.
FAU - Gui, Chengcheng
AU  - Gui C
AD  - American Hip Institute, Westmont, Illinois, USA.
FAU - Darwish, Nader
AU  - Darwish N
AD  - American Hip Institute, Westmont, Illinois, USA.
FAU - Lodhia, Parth
AU  - Lodhia P
AD  - American Hip Institute, Westmont, Illinois, USA.
FAU - Suarez-Ahedo, Carlos
AU  - Suarez-Ahedo C
AD  - American Hip Institute, Westmont, Illinois, USA.
FAU - Domb, Benjamin G
AU  - Domb BG
AD  - American Hip Institute, Westmont, Illinois, USA Hinsdale Orthopaedics, Westmont, 
      Illinois, USA dombsteam@gmail.com.
LA  - eng
PT  - Journal Article
DEP - 20160404
PL  - United States
TA  - Am J Sports Med
JT  - The American journal of sports medicine
JID - 7609541
SB  - IM
MH  - Activities of Daily Living
MH  - Adolescent
MH  - Adult
MH  - Arthroplasty, Replacement, Hip
MH  - *Arthroscopy
MH  - Female
MH  - Follow-Up Studies
MH  - Hip Joint/surgery
MH  - Humans
MH  - Male
MH  - Matched-Pair Analysis
MH  - Middle Aged
MH  - Osteoarthritis, Hip/diagnosis/*surgery
MH  - Patient Outcome Assessment
MH  - Patient Satisfaction
MH  - Reoperation
MH  - Treatment Outcome
MH  - Young Adult
OTO - NOTNLM
OT  - *Tonnis grade
OT  - *conversion to THA after hip arthroscopic surgery
OT  - *hip arthroscopic surgery
OT  - *hip arthroscopic surgery and osteoarthritis
OT  - *patient-reported outcome scores
EDAT- 2016/04/06 06:00
MHDA- 2017/07/08 06:00
CRDT- 2016/04/06 06:00
PHST- 2016/04/06 06:00 [entrez]
PHST- 2016/04/06 06:00 [pubmed]
PHST- 2017/07/08 06:00 [medline]
AID - 0363546516638087 [pii]
AID - 10.1177/0363546516638087 [doi]
PST - ppublish
SO  - Am J Sports Med. 2016 Jul;44(7):1781-8. doi: 10.1177/0363546516638087. Epub 2016 
      Apr 4.